Ändra sökning
Avgränsa sökresultatet
1 - 8 av 8
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Träffar per sida
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sortering
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
  • Standard (Relevans)
  • Författare A-Ö
  • Författare Ö-A
  • Titel A-Ö
  • Titel Ö-A
  • Publikationstyp A-Ö
  • Publikationstyp Ö-A
  • Äldst först
  • Nyast först
  • Skapad (Äldst först)
  • Skapad (Nyast först)
  • Senast uppdaterad (Äldst först)
  • Senast uppdaterad (Nyast först)
  • Disputationsdatum (tidigaste först)
  • Disputationsdatum (senaste först)
Markera
Maxantalet träffar du kan exportera från sökgränssnittet är 250. Vid större uttag använd dig av utsökningar.
  • 1.
    Charlène, Reverdy
    et al.
    CNRS, France; Grenoble Institute of Technology, France.
    Sedighi Moghaddam, Maziar
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sundin, Mikael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Swerin, Agne
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Julien, Bras
    CNRS, France; Grenoble Institute of Technology, France.
    Superhydrophobic surfaces manufacturing with nanocellulose2016Ingår i: N.I.C.E. 2016 - The 3rd International Conference on Bioinspired and Biobased Chemistry & Materials, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    Researchers in natural fibers see opportunities in superhydrophobicity for fabrics or paper. The first challenge with natural fiber is their high hydrophilicity when the second is the perpetual search for water born coating  in papermaking. These challenges were overcome by a one pot formulation comprising a latex binder, precipitated calcium carbonate and  fatty acids to give their hydrophobicity to pigments 1.  In this study, we want to go further by replacing the petro-sourced latex with a new kind of fibers that are cellulose nanofibers (CNF).

    Inspired by the Lotus leaf, superhydrophobic surfaces have been a center of interest in the last decade because of their high potential in industry for a variety of applications.  It is seen as the next generation of surface for anti-fouling and corrosive retardant in navy industry but also  in general  anti corrosive materials industry.  Now widely studied , mechanisms for manufacturing superhydrophobicity are well understood. Born from the alliance of low surface energy chemistry and physical structuration of surface, superhydrophobic materials give a water contact angle above 150° and a slidding angle below 10°.

    Ladda ner fulltext (pdf)
    Poster
  • 2.
    Reverdy, Charlene
    et al.
    Université Grenoble Alpes, France.
    Belgacem, Naceur
    Université Grenoble Alpes, France.
    Sedighi Moghaddam, Maziar
    RISE - Research Institutes of Sweden (2017-2019), Biovetenskap och material, Yta, process och formulering.
    Sundin, Mikael
    RISE - Research Institutes of Sweden (2017-2019), Biovetenskap och material, Yta, process och formulering. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Swerin, Agne
    RISE - Research Institutes of Sweden (2017-2019), Biovetenskap och material, Yta, process och formulering. KTH Royal Institute of Technology, Sweden.
    Bras, Julien
    Université Grenoble Alpes, France; Institut Universitaire de France, France.
    One-step superhydrophobic coating using hydrophobized cellulose nanofibrils2018Ingår i: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 544, s. 152-158Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Superhydrophobic surfaces have high potential in self-cleaning and anti-fouling applications. We developed a one-step superhydrophobic coating formulation containing sodium oleate (NaOl), hydrophobized precipitated calcium carbonate and biobased cellulose nanofibrils (CNFs) hydrophobized with either alkyl ketene dimer (AKD) or amino propyl trimethoxy silane (APMS) as a binder to fix and distribute the particles. Coatings were made on paperboard and the wetting behavior of the surface was assessed. Static, advancing and receding contact angles with water as well as roll-off and water shedding angle were compared to coatings made with styrene butadiene latex as binder instead of CNFs. Modifications with alkyl ketene dimer showed most promising results for a viable process in achieving superhydrophobic paperboard but required reformulation of the coating with optimized and reduced amount of NaOl to avoid surfactant-induced wetting via excess NaOl. A static water contact angle of 150° was reached for the CNF-AKD. The use of CNFs enables the improvement of coating quality avoiding cracking with the use of nanocellulose as a renewable binder.

  • 3.
    Siljeström, Sandra
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, YKI – Ytkemiska institutet.
    Lausmaa, Jukka
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, YKI – Ytkemiska institutet.
    Hode, T
    Sundin, Mikael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, YKI – Ytkemiska institutet. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Sjövall, Peter
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, YKI – Ytkemiska institutet.
    Structural effects of C-60(+) bombardment on various natural mineral samples - Application to analysis of organic phases in geological samples2011Ingår i: Applied Surface Science, ISSN 0169-4332, E-ISSN 1873-5584, Vol. 257, nr 21, s. 9199-9206Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Organic phases trapped inside natural mineral samples are of considerable interest in astrobiology, geochemistry and geobiology. Examples of such organic phases are microfossils, kerogen and oil. Information about these phases is usually retrieved through bulk crushing of the rock which means both a risk of contamination and that the composition and spatial distribution of the organics to its host mineral is lost. An attractive of way to retrieve information about the organics in the rock is depth profiling using a focused ion beam. Recently, it was shown that it is possible to obtain detailed mass spectrometric information from oil-bearing fluid inclusions, i.e. small amounts of oil trapped inside a mineral matrix, using ToF-SIMS. Using a 10 keV C-60(+) sputter beam and a 25 keV Bi-3(+) analysis beam, oil-bearing inclusions in different minerals were opened and analysed individually. However, sputtering with a C-60(+) beam also induced other changes to the mineral surface, such as formation of topographic features and carbon deposition. In this paper, the cause of these changes is explored and the consequences of the sputter-induced features on the analysis of organic phases in natural mineral samples (quartz, calcite and fluorite) in general and fluid inclusions in particular are discussed. The dominating topographical features that were observed when a several micrometers deep crater is sputtered with 10 keV C-60(+) ions on a natural mineral surface are conical-shaped and ridge-like structures that may rise several micrometers, pointing in the direction of the incident C-60(+) ion beam, on an otherwise flat crater bottom. The sputter-induced structures were found to appear at places with different chemistry than the host mineral, including other minerals phases and fluid inclusions, while structural defects in the host material, such as polishing marks or scratches, did not necessarily result in sputter-induced structures. The ridge-like structures were often covered by a thick layer of deposited carbon. Despite the appearance of the sputter-induced structures and carbon deposition, most oil-bearing inclusions could successfully be opened and analysed. However, smaller inclusion (

  • 4.
    Swerin, Agne
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sundin, Mikael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Wåhlander, Martin
    KTH Royal Institute of Technology, Sweden.
    Formulation of a pigmented foam aimed for superhydrophobic coatings2015Ingår i: Paper Conference and Trade Show (PaperCon 2015), 2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    Fundamental studies of superhydrophobicity have evolved toward several industrial applications. The present study concerns the formulation of pigmented foam aimed for water-borne superhydrophobic surface layers. An industrially viable process for a one-step water-borne superhydrophobic coating was developed in collaboration with industrial partners. A typical formulation contained calcium carbonate (preferably aragonite type), sodium oleate and carboxylic latex binder. The pigmented foam was laboratory rod coated onto paperboard substrates. During the drying the foamed structure collapses into a pigmented coating. The contact and rolling-off angles, droplet stain size and Cobb value were evaluated for different amounts of the added ingredients. The frictional resistance and water vapour permeability was measured for some of the samples.

    More recent results show that through careful reformulation of the coating dispersions these pigmented foams can be prepared at considerably higher solids content, which is of utmost relevance to decrease drying time if implemented in an industrial process. It was also shown that the hydrostatic water resistance (Cobb value) and the mechanical robustness could be substantially improved compared to previous results. Surface spectroscopy data provided an explanation for the increased water resistance.

  • 5.
    Swerin, Agne
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Sundin, Mikael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Wåhlander, Martin
    KTH Royal Institute of Technology, Sweden.
    Formulation of superhydrophobic pigment coatings2015Ingår i: Paper Conference and Trade Show (PaperCon 2015), TAPPI Press, 2015, Vol. 2, s. 1410-1424Konferensbidrag (Refereegranskat)
  • 6.
    Swerin, Agne
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Sundin, Mikael
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Wåhlander, Martin
    RISE., SP – Sveriges Tekniska Forskningsinstitut. KTH Royal Institute of Technology, Sweden.
    One-pot waterborne superhydrophobic pigment coatings at high solids with improved scratch and water resistance2016Ingår i: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 495, s. 79-86Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A pigment coating was developed to achieve superhydrophobicity in one step from a waterborne formulation containing aragonite calcium carbonate, hydrophobized using sodium oleate, latex binder and cross-linker. Coatings formulated ≤50 mass% and applied to polyethylene coated paperboard substrates displayed typical superhydrophobic features: water contact angles ≥150°, low roll-off angle and low stain sizes, but poor scratch and water resistance as well as foaming issues during preparation. Reformulation at higher solids content significantly improved scratch and water resistance properties. Water rinsing of the dried coatings further increased the water barrier capacity due to reduced surfactant-assisted wetting; findings were corroborated by detailed surface chemistry analyses showing the removal of surface-active components after water rinsing of the dried coatings. A plausible cause for the improved durability is the fact that capillary forces increase exponentially with increasing pigment volume fraction (power law exponent of 2.2) leading to efficient binder coverage during the early stage of pigment coating consolidation.

  • 7.
    Zäll, Erik
    et al.
    Absolicon Solar Collector, Sweden; Umeå University, Sweden.
    Järn, Mikael
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Karlsson, Stefan
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Tryggeson, Henrik
    RISE Research Institutes of Sweden, Samhällsbyggnad, Bygg och fastighet.
    Tuominen, Mikko
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Sundin, Mikael
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Wågberg, Thomas
    Umeå University, Sweden.
    Aerosol-based deposition of broadband antireflective silica coating with closed mesoporous structure2023Ingår i: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 250, s. 112078-112078, artikel-id 112078Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Solar energy will be a crucial part of the sustainable, fossil free energy production of the future. A majority of this will be produced by solar collectors and photovoltaics. Important for the efficient utilization of the incident solar energy for both technologies are a cover glass with antireflective coatings giving it a high solar transmittance. In the current paper we describe the development of antireflective mesoporous silica coatings on low-iron float glass using the aerosol-based nFOG™ deposition technique. The coatings exhibit a hexagonal and closed pore structure, high smoothness, superhydrophilic properties (contact angle <5°) and consistent thicknesses of approximately 110 nm. This is in line with optimal thickness determined from simulations of the antireflective behavior. Low-iron float glass coated on both sides show a highly reproducible solar weighted transmittance of 95% in the wavelength range 300–2500 nm and an antireflective effect increasing with incident angle. The smoothness, closed pores and low contact angle indicate a high cleanability, which in combination with the high transmittance render a competitive broadband antireflective coating well adapted for solar glass applications.

    Ladda ner fulltext (pdf)
    fulltext
  • 8.
    Zäll, Erik
    et al.
    Absolicon Solar Collector. Sweden; Umeå University, Sweden.
    Järn, Mikael
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Karlsson, Stefan
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Tryggeson, Henrik
    RISE Research Institutes of Sweden, Samhällsbyggnad, Bygg och fastighet.
    Tuominen, Mikko
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Sundin, Mikael
    RISE Research Institutes of Sweden, Bioekonomi och hälsa, Material- och ytdesign.
    Wågberg, Thomas
    Umeå University, Sweden.
    Aerosol-based deposition of broadband antireflective silica coating withclosed mesoporous structure2023Ingår i: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 250, s. 112078-, artikel-id 112078Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Solar energy will be a crucial part of the sustainable, fossil free energy production of the future. Amajority of this will be produced by solar collectors and photovoltaics. Important for the efficientutilization of the incident solar energy for both technologies are a cover glass with antireflectivecoatings giving it a high solar transmittance. In the current paper we describe the development ofantireflective mesoporous silica coatings on low-iron float glass using the aerosol-based nFOGTMdeposition technique. The coatings exhibit a hexagonal and closed pore structure, a high smoothness,and consistent thicknesses of approximately 110 nm. This is in line with optimal thicknessesdetermined from simulations of the antireflective behavior. Low-iron float glass coated on both sidesshow a highly reproducible solar weighted transmittance of 95 % in the wavelength range 300-2500nm and an antireflective effect increasing with incident angle. The smoothness and closed poresassociated with high cleanability, as well as high transmittance makes it a competitive broadbandantireflective coating well adapted for solar glass applications.

    Ladda ner fulltext (pdf)
    fulltext
1 - 8 av 8
RefereraExporteraLänk till träfflistan
Permanent länk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf