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  • 1.
    Alfredsen, Gry
    et al.
    Norwegian Forest and Landscape Institute, Norway.
    Ringman, Rebecka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad. Technical University of Munich, Germany.
    Fossdal, Carl Gunnar
    Norwegian Forest and Landscape Institute, Norway.
    New insight regarding mode of action of brown rot decay of modified wood based on DNA and gene expression studies: A review2015In: International Wood Products Journal, ISSN 2042-6445, E-ISSN 2042-6453, Vol. 6, no 1, p. 5-7Article in journal (Refereed)
    Abstract [en]

    Modified wood shows resistance against wood deteriorating fungi, but the mechanisms are still not fully understood. The aim of this paper was to summarise the molecular studies performed on modified wood with regard to brown rot decay fungi. The DNA data showed that fungi are present inside the laboratory wood test samples already after two weeks of inoculation. Generally the fungal DNA content reflects mass loss and wood moisture content. The oxidative gene expression seems to be higher in modified wood than in untreated wood and it tend to increase during incubation. Based on the gene expression data we suggest that the hypothesis of lack of substrate recognition by the fungus should be rejected. In the reviewed studies, total wood moisture content in the samples was generally not low enough to inhibit fungal colonisation. Hence, moisture distribution within the wood should be studied more closely.

  • 2.
    Bardage, Stig
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Jermer, Jöran
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Simple test setups for assessment of performance outdoors2014In: COST Action FP1303, University of Ljubljana & University of Primorska , 2014, , p. 21-22Conference paper (Other academic)
  • 3.
    Carlsson, Gilbert
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Nussbaum, Ralph
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Fornell, Rickard
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Westin, Mats
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Melander, Robert
    RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Engström, Clas
    Resources for Forest-based Industries2013Report (Refereed)
  • 4. Ehmcke, Gabriele
    et al.
    Ringman, Rebecka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Richter, Klaus
    Improvement of a cytochemical method for localization of hydrogen peroxide and adaptation to furfurylated wood2014In: Proceedings of 10th Meeting of the Northern European Network for Wood Science & Engineering (WSE 2014), Edinburgh Napier University , 2014, , p. 180-186Conference paper (Refereed)
  • 5.
    Humar, Miha
    et al.
    University of Ljubljana, Slovenia.
    Brischke, Christian
    Leibniz University Hannover, Germany.
    Meyer, Linda
    Leibniz University Hannover, Germany.
    Lesar, Boštjan
    University of Ljubljana, Slovenia.
    Thaler, Nejc
    University of Ljubljana, Slovenia.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm). Luleå University of Technology, Sweden.
    Bardage, Stig
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Belloncle, Christophe
    Ecole Supérieure du Bois, France.
    Van den Bulcke, Jan
    Ghent University, Belgium.
    Abascal, José Miguel
    Tecnalia R&I, Spain.
    Alfredsen, Gry
    Norwegian Forest and Landscape Institute, Norway.
    Baisch, Daniela
    Robert OTT, Germany.
    Brunnhuber, Barbara
    Holzforschung Austria, Austria.
    Cofta, Grzegorz
    Institute of Chemical Wood Technology, Poland.
    Grodås, Eva
    Norwegian Forest and Landscape Institute, Norway.
    Frühwald Hansson, Eva
    Lund University, Sweden.
    Irle, Mark
    Ecole Supérieure du Bois, France.
    Kallakas, Heikko
    Tallinn University of Technology, Estonia.
    Kers, Jaan
    Tallinn University of Technology, Estonia.
    Klamer, Morten
    Danish Technological Institute, Denmark.
    Larsson Brelid, Pia
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Maider, A.
    Tecnalia R&I, Spain.
    Mahnert, Karl-Christian
    Norwegian Institute of Wood Technology, Norway.
    Melcher, Eckhard
    Thünen-Institut für Holzforschung, Germany.
    Möller, Ralf
    BASF Wolman GmbH, Germany.
    Noel, Marion
    Bern University of Applied Sciences, Switzerland.
    Nunes, Lina
    LNEC Laboratório Nacional de Engenharia Civil, Portugal.
    Ormondroyd, Graham Alan
    Bangor University, UK.
    Palanti, Sabrina
    CNR IVALSA, Italy.
    Pfabigan, Notburga
    Holzforschung Austria, Austria.
    Pilgård, Annica
    Technical University of Munich, Germany.
    Rapp, Andreas O.
    Gutachtenbüro Rapp, Germany.
    Schumacher, Peter
    MPA Eberswalde, Germany.
    Suttie, Ed
    Building Research Establishment, UK.
    Teppand, Tõnis
    Estonian University of Life Sciences, Estonia.
    Touza, Manuel
    CIS-Madera, Spain.
    Van Acker, Joris
    Ghent University, Belgium.
    Introduction of the COST FP 1303 Cooperative Performance Test2015In: Proceedings of the 46th IRG Annual Meeting, 2015, no 20567, article id IRG/WP 15-20567Conference paper (Refereed)
    Abstract [en]

    COST Action FP 1303 “Performance of bio-based building materials” successfully started in October 2013 and an ambitious program was set up for the four year programme. COST Actions provide an excellent opportunity for collaborative research, e.g. in the frame of Round Robin tests.

    The idea of this respective test was to distribute a fairly simple test set up to as many places in Europe as possible in order to collect performance data reflecting the range of climatic exposure conditions. Furthermore we wanted to consider performance in its manifold meaning, i.e. optical, aesthetical, moisture and functional performance and durability. In contrast to traditional Round Robin tests aiming on comparative evaluation and validation of results from different test laboratories, this initiative aims on collecting performance data under climatically different exposure conditions. Therefore it was required to provide weather data from the respective test sites to allow establishing relationships between climate conditions and the following measured, which shall be evaluated regularly: decay, discolouration, development of mould and other staining fungi, corrosion, formation of cracks and moisture performance (if data logging device is included). Further details about the test and the first outcomes are presented in this paper.

  • 6.
    Jermer, Jöran
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / SP Trä.
    Sundqvist, Bror
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Kvalitetssäkrade provkroppar i trä2012Report (Refereed)
  • 7.
    Jermer, Jöran
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / SP Trä.
    Sundqvist, Bror
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Standardized Wood Specimens2013Report (Refereed)
  • 8.
    Jermer, Jöran
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / SP Trä.
    Sundqvist, Bror
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Testing of Knot-Yellowing. Prevention for Coatings2013Report (Refereed)
  • 9.
    Jermer, Jöran
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / SP Trä.
    Sundqvist, Bror
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Wood Coatings2013Report (Refereed)
  • 10.
    Jermer, Jöran
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / SP Trä.
    Sundqvist, Bror
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Ytbehandling av träprodukter2013Report (Refereed)
  • 11.
    Jones, Dennis
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Environmental considerations for biobased materials in modern methods of construction2014In: COST Action FP1303, University of Ljubljana & University of Primorska , 2014, , p. 11-12Conference paper (Other academic)
  • 12.
    Jones, Dennis
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Life Since the European Thematic Network on Wood Modification – the First 10 Years2012In: The Sixth European Conference on Wood Modification Proceedings, University of Ljubljana , 2012, , p. 29-36Conference paper (Refereed)
  • 13.
    Jones, Dennis
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Bardage, Stig
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Brischke, Christian
    Introduction to COST Action FP1303: Performance of bio-based building materials2013In: Proceedings of the 9th Meeting of the Northern European Network for Wood Science and Engineering, 2013, , p. 50-55Conference paper (Other academic)
  • 14.
    Jones, Dennis
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Brischke, Christian
    Meyer, Linda
    Suttie, Ed
    Moisture risk and Wood Durability Testing for Modified Wood2014In: The seventh European Conference on Wood Modification : Book of Abstracts, 2014Conference paper (Refereed)
  • 15.
    Jones, Dennis
    et al.
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Davies, Ivor
    Sharphouse, Paul
    Suttie, Ed
    Grading UK Grown Larch for Durability2013In: Proceedings IRG Annual Meeting IRG/WP 13, 2013, , p. 20Conference paper (Other academic)
  • 16.
    Jones, Dennis
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Englund, Finn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Henriksson, Marielle
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Trey, Stacy
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Ziethén, Rune
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Gonzales, Sergio
    Segui, Luis
    Development of a novel wood based panel for use in internal door manufacture2012Conference paper (Refereed)
  • 17.
    Jones, Dennis
    et al.
    Material och produkter (TRm).
    Navi, Parviz
    COST Action FP0904 – Increasing the Understanding of Thermo-Hydro-Mechanical Wood Behaviour and Processing2013In: Proceedings IRG Annual Meeting IRG/WP 13, 2013, , p. 11Conference paper (Other academic)
  • 18.
    Jones, Dennis
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schmid, Joachim
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Opportunities within COST – A Swedish Perspective2014In: Proceedings of 10th Meeting of the Northern European Network for Wood Science & Engineering (WSE 2014), Edinburgh Napier University , 2014, , p. 192-197Conference paper (Refereed)
  • 19. Källbom, Susanna
    et al.
    Ormondroyd, Graham
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Wålinder, Magnus
    Surface Energy Characteristics of Refined Fibres at Different Pressures2014In: Proceedings of 10th Meeting of the Northern European Network for Wood Science & Engineering (WSE 2014), Edinburgh Napier University , 2014, , p. 134-138Conference paper (Refereed)
  • 20. Källbom, Susanna
    et al.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Surface energy characterization at different moisture levels of thermally modified wood using inverse gas chromatograph2013In: Proceedings of the 9th Meeting of the Northern European Network for Wood Science and Engineering, 2013, , p. 130-135Conference paper (Other academic)
  • 21. Källbom, Susanna
    et al.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Wålinder, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Surface energy characterization of thermally modified wood using inverse gas chromatography2013In: Proceedings IRG Annual Meeting IRG/WP 13, 2013, , p. 6Conference paper (Other academic)
  • 22.
    Källbom, Susanna
    et al.
    KTH Royal Institute of Technology, Sweden.
    Wålinder, Magnus
    KTH Royal Institute of Technology, Sweden.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad. KTH Royal Institute of Technology, Sweden.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Surface energy characterization of thermally modified spruce using inverse gas chromatography under cyclic humidity conditions2015In: Wood and Fiber Science, ISSN 0735-6161, Vol. 47, no 4, p. 410-420Article in journal (Refereed)
    Abstract [en]

    The surface energy of unmodified and thermally modified spruce wood components was researched at dry and moist conditions using inverse gas chromatography. The results indicate a more pronounced heterogeneous nature of the thermally modified wood surfaces in terms of the dispersive (nonpolar) component of the surface energy, compared with that of the unmodified wood surfaces. The dispersive component of the surface energy of the thermally modified wood ranged between 44 and 38 mJ/m2 corresponding to an increase in surface coverage from a low level and up to about 10%. Suggested explanations for the more distinct heterogeneity of the thermally modified wood sample arerelated to chemical changes of the wood substance which seem to result in certain micromorphological features observed by scanning electron microscopy as alternated fracture surfaces created in the grinding process; and also possible changes or redistribution of the wood extractives. An increase of the MC, representing a change from a dry condition of approximately 0% RH to ca 75% RH, of both the unmodified and thermally modified samples seemed to have a marginal influence on the dispersive component of the surface energy. Possible implications of the results in this study can be found in the tailoring of new compatible and durable material combinations, for example, when using thermally modified wood residuals as a component in new types of biocomposites.

  • 23. Laine, Kristiina
    et al.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Wålinder, Magnus
    Rautkari, Lauri
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Hughes, Mark
    The effect of process parameters on the micromorphology of surface densified wood2014In: The seventh European Conference on Wood Modification : Book of Abstracts, 2014Conference paper (Refereed)
  • 24.
    Laine, Kristiina
    et al.
    Aalto University, Finland.
    Segerholm, Kristoffer
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Wålinder, Magnus
    KTH Royal Institute of Technology, Sweden.
    Rautkari, Lauri
    Aalto University, Finland.
    Ormondroyd, Graham
    Bangor University, UK.
    Hughes, Mark
    Aalto University, Finland.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Micromorphological studies of surface densified wood2014In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 49, no 5, p. 2027-2034Article in journal (Refereed)
    Abstract [en]

    Scots pine (Pinus sylvestris L.) wood was surface densified in its radial direction in an open press with one heated plate to obtain a higher density on the wood surface whilst retaining the overall thickness of the sample. This study investigated the effect of temperature (100, 150 and 200 °C) and press closing speed (5, 10 and 30 mm/min, giving closing times of 60, 30 and 10 s, respectively) on the micromorphology of the cell-wall, as well as changes occurring during set-recovery of the densified wood. The micromorphology was analysed using scanning electron microscopy (SEM) combined with a sample preparation technique based on ultraviolet-excimer laser ablation. Furthermore, the density profiles of the samples were measured. Low press temperature (100 °C) and short closing time (10 s) resulted in more deformation through the whole thickness, whilst increasing the temperature (150 and 200 °C) and prolonging the closing time (30 and 60 s) enabled more targeted deformation closer to the heated plate. The deformation occurred in the earlywood regions as curling and twisting of the radial cell-walls, however, no apparent cell-wall disruption or internal fracture was observed, even at low temperatures and fast press closing speed, nor after soaking and drying of the samples. In the SEM-analysis after soaking and drying, it was noticed that the cells did not completely recover their original form. Thus, part of the deformation was considered permanent perhaps due to viscoelastic flow and plastic deformation of the cell-wall components.

  • 25.
    Larsson Brelid, Pia
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Ringman, Rebecka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Bardage, Stig
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Testbäddar för beständighetsprovning2014Report (Refereed)
  • 26. Mantanis, George
    et al.
    Jones, Dennis
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Innovative Modification of Wood with Nanoparticulate Treatment2012In: The Sixth European Conference on Wood Modification Proceedings, University of Ljubljana , 2012, , p. 447-454Conference paper (Refereed)
  • 27. Medronho, Bruno
    et al.
    Andrade, Raquel
    Vivod, Vera
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Miguel, Maria Graca
    Lindman, Björn
    Voncina, Bojana
    Valente, Artur
    Cyclodextrin-Grafted Cellulose: Physico-Chemical Characterization2013In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 93, no 1, p. 324-330Article in journal (Refereed)
  • 28. Nunes, Lina
    et al.
    Jones, Dennis
    SP - Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Educating European Professionals and the General Public on the Virtues of Modified Wood in a Modern Sustainable Society2014In: The seventh European Conference on Wood Modification : Book of Abstracts, 2014Conference paper (Refereed)
  • 29.
    Pilgård, Annica
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Ringman, Rebecka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Kölle, Martina
    Brischke, Christian
    Richter, Klaus
    Expression of Postia placenta wood degradation genes in thermally modified wood2014In: Proceedings of 10th Meeting of the Northern European Network for Wood Science & Engineering (WSE 2014), Edinburgh Napier University , 2014, , p. 97-103Conference paper (Refereed)
  • 30.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Alfredsen, Gry
    Goodell, Barry
    Richter, Klaus
    Possible targets of wood modification in brown rot degradation2014In: Proceedings IRG Annual Meeting 2014 - IRG/WP 14, 2014, , p. 13Conference paper (Other academic)
  • 31.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Brischke, Christian
    Leibniz University, Germany.
    Richter, Klaus
    Technische Universität München, Germany.
    Mode of action of brown rot decay resistance in modified wood: a review2014In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 68, no 2, p. 239–246-Article in journal (Refereed)
    Abstract [en]

    Chemically or physically modified wood materials have enhanced resistance to wood decay fungi. In contrast to treatments with traditional wood preservatives, where the resistance is caused mainly by the toxicity of the chemicals added, little is known about the mode of action of nontoxic wood modification methods. This study reviews established theories related to resistance in acetylated, furfurylated, dimethylol dihydroxyethyleneurea- treated, and thermally modified wood. The main conclusion is that only one theory provides a consistent explanation for the initial inhibition of brown rot degradation in modified wood, that is, moisture exclusion via the reduction of cell wall voids. Other proposed mechanisms, such as enzyme nonrecognition, micropore blocking, and reducing the number of free hydroxyl groups, may reduce the degradation rate when cell wall water uptake is no longer impeded.

  • 32.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
    Richter, Klaus
    Technische Univerität München, Germany.
    Effect of wood modification on gene expression during incipient Postia placenta decay2014In: International Biodeterioration & Biodegradation, ISSN 0964-8305, E-ISSN 1879-0208, Vol. 86, no B, p. 86-91Article in journal (Refereed)
    Abstract [en]

    The mode of action of nontoxic wood modifications and the fungal response to modified wood are not fully elucidated. The aim of this study was to investigate the reaction of Postia placenta in terms of gene expression of selected genes upon the encounter of acetylated, DMDHEU-treated and thermally modified wood. Quantitative PCR (qPCR) showed that the investigated P.placentagenes involved in oxidative degradation were expressed at higher levels in modified wood than in untreated wood, while expression levels in modified wood for the investigated genes involved in enzymatic degradation were slightly lower than those in untreated wood. The results indicate that the response of P.placenta upon the encounter of modified wood is to up-regulate the expressionof the oxidative degradation machinery. In addition, our results support the theory that the decay resistance of the herein studied modified woods is due to inhibition of fungal molecules, needed for oxidative degradation of wood polymers, to penetrate the wood cell wall.

  • 33.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Richter, Klaus
    Effects of wood modification on gene expression during incipient Postia Placenta decay2013In: Proceedings of the 9th Meeting of the Northern European Network for Wood Science and Engineering, 2013, , p. 221-227Conference paper (Other academic)
  • 34.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Richter, Klaus
    Technische Universität München, Germany.
    In vitro oxidative and enzymatic degradation of modified wood2014In: The seventh European Conference on Wood Modification : Book of Abstracts, 2014, Vol. 6, p. 36-39, article id 1Conference paper (Refereed)
    Abstract [en]

    Fungal cellulases have been shown to be less efficient in modified wood than in untreated wood (Lekounogou et al. 2008; Vena°s 2008). However, Verma and Mai (2010) showed that cellulase efficacy is partly restored in 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) treated wood by pre-treatment with Fenton's reagent, simulating the oxidative degradation phase in initial brown rot decay. In this study, we examined whether Fenton derived hydroxyl radicals (OH) and cellulases are able to cleave polysaccharides in furfurylated and acetylated wood and to what extent enzyme efficacy is increased by oxidative pre-treatment of these materials. The results show that fungal cellulases were able to degrade acetylated wood and that the cellulase efficacy was increased by oxidative pre-treatment by 20%, which is half of the increase in untreated wood. Furthermore, the results indicate that poly(furfuryl alcohol) is degraded by Fenton derived OH. This indicates a possible route for the eventual degradation of modified wood.

  • 35.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Richter, Klaus
    Postia placenta cellulase gene expression in modified wood during incipient decay2013In: p. 9-Article in journal (Other academic)
  • 36.
    Ringman, Rebecka
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Pilgård, Annica
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, Trätek.
    Richter, Klaus
    Postia placenta decay mechanisms and effects of wood modification2012In: The Sixth European Conference on Wood Modification Proceedings, University of Ljubljana , 2012, , p. 119-126Conference paper (Refereed)
  • 37.
    Sandberg, Karin
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggande och boende (TRb).
    Pousette, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Karlsson, Olov
    Sundqvist, Bror
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Fasader i trä för flervåningshus: Jämförelse mellan material och behandlingsmetoder2013Report (Refereed)
  • 38.
    Wang, Xiaodong Alice
    et al.
    Luleå University of Technology, Sweden.
    Hagman, Olle
    Luleå University of Technology, Sweden.
    Sundqvist, Bror
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Ormarsson, Sigurdur
    Linnaeus University, Sweden.
    Wang, Hui
    Mississippi State University, US.
    Niemz, Peter
    ETH Zurich, Switzerland.
    Shear strength of scots pine wood and glued joints in a cold climate2016In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 11, no 1, p. 944-956Article in journal (Refereed)
    Abstract [en]

    The impact of cold temperatures on the shear strength of Scots pine (Pinus sylvestris) joints glued with seven commercially available adhesives was studied in this work. The cold temperatures investigated were: 20, -20, -30, -40, and -50 °C. Generally, within the temperature test range, the shear strength of Scots pine solid wood and wood joints were more resistant to the effect of temperature than those of Norway spruce. As the temperature decreased, only some of the joints' shear strength significantly decreased. In most cases, PUR adhesive yielded the strongest shear strength and MUF adhesive yielded the weakest shear strength. MF adhesive responded to temperature changes in a similar manner to that of PUR and PVAc adhesives. The shear strengths of wood joints with PRF and EPI adhesives were more sensitive to temperature change. For dynamic tests of shear strength, the values for 12-h and 6-day tests under temperature cycles (-20 and 0 °C) were compared. The values for 6-day tests were lower than those for 12-h tests. Therefore, the duration of the samples subjected to the same temperature had a significant impact on shear strength. Our results indicate that PUR adhesive is the most stable whereas the stability of MUF and PRF adhesives decreased significantly.

  • 39.
    Wang, Xiaodong
    et al.
    Luleå University of Technology, Sweden.
    Hagman, Olle
    Luleå University of Technology, Sweden.
    Sundqvist, Bror
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Ormarsson, Sigurdur
    DTU Technical University of Denmark, Denmark.
    Wan, Hui
    Mississippi State University, US.
    Niemz, Peter
    ETH Zurich, Switzerland.
    Impact of cold temperatures on the shear strength of Norway spruce joints glued with different adhesives2015In: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 73, no 2, p. 225-233Article in journal (Refereed)
    Abstract [en]

    As wood construction increasingly uses engineered wood products worldwide, concerns arise about the integrity of the wood and adhesives used. Bondline strength is a crucial issue for engineered wood applications, especially in cold climates. In this study, Norway spruce (Picea abies) joints (150 mm × 20 mm × 10 mm) were bonded with seven commercially available adhesives: polyurethane (PUR), polyvinyl acetate (PVAc), emulsion-polymer-isocyanate (EPI), melamine-formaldehyde (MF), phenol-resorcinol-formaldehyde (PRF), melamine-urea-formaldehyde1 (MUF1), and melamine-urea-formaldehyde2 (MUF2). Each adhesive was tested at six temperatures: 20, −20, −30, −40, −50 and −60 °C. Generally, within the temperature test range, temperature changes significantly affected the shear strength of solid wood and wood joints. As the temperature decreased, the shear strength decreased. PUR adhesive in most cases resulted in the strongest shear strength and MUF adhesive resulted in the weakest. MF and PRF adhesives responded to temperature changes in a similar manner to that of the PUR adhesive. The shear strengths of wood joints with PVAc and EPI adhesives were more sensitive to temperature change. At low temperatures, the variability of shear strengths increased with all adhesives. Percent wood failures of joints bonded with different adhesives in most cases were not sensitive to temperature changes.

  • 40.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Karlsson, Annelie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Systemanalys.
    Quistgaard, Louise
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Systemanalys.
    Mistra Future Fashion annual report 20122013Report (Refereed)
  • 41.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update April 20142014Report (Refereed)
  • 42.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update December 20132013Report (Refereed)
  • 43.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update June 20122012Report (Refereed)
  • 44.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update June 20142014Report (Refereed)
  • 45.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update October 20122012Report (Refereed)
  • 46.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Schragger, Michael
    Mistra Future Fashion Update September 20132013Report (Refereed)
  • 47.
    Westin, Mats
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Östlund, Åsa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Sweet, Susanne
    Mistra Future Fashion Progress Report Covering June 2011-March 20152015Report (Refereed)
  • 48.
    Östlund, Åsa
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Wedin, Helena
    Bolin, Lisa
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Berlin, Johanna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Energiteknik (ET).
    Jönsson, Christina
    RISE - Research Institutes of Sweden, Materials and Production, IVF, Energi och miljö.
    Posner, Stefan
    RISE - Research Institutes of Sweden, Materials and Production, IVF, Energi och miljö.
    Smuk, Lena
    Eriksson, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP - Sveriges Tekniska Forskningsinstitut, SP Trä.
    Sandin, Gustav
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad, Biobaserade material och produkter.
    Textilåtervinning: tekniska möjligheter och utmaningar2015Report (Refereed)
  • 49.
    Östlund, Åsa
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Westin, Mats
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Quistgaard, Louise
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Systemanalys.
    Mistra Future Fashion annual report 20142015Report (Refereed)
  • 50.
    Östlund, Åsa
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Östmark, Emma
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.
    Jones, Dennis
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).
    Scientific Programme and Book of Abstracts: Workshop Science and uses of nanocellulose & Cellulose foams and films. March 5-6, 20142014Report (Refereed)
1 - 50 of 50
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