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A comparative study of kraft pulp fibres and the corresponding fibrillated materials as reinforcement of LDPE- and HDPE-biocomposites
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-4273-231x
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.
RISE Research Institutes of Sweden, Bioeconomy and Health, Material and Surface Design.ORCID iD: 0000-0002-6183-2017
2023 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 173, article id 107678Article in journal (Refereed) Published
Abstract [en]

Cellulose nanofibrils (CNFs) have been proposed as reinforcement for thermoplastic polymers due to their potentially superior mechanical properties. However, it seems still uncertain how the reinforcement ability of CNFs compares to cheaper pulp fibres, and how the suspected potential of CNFs can be fully utilized in biocomposites. Therefore, this study presents a direct comparative investigation of kraft pulp fibres and their fibrillated materials as reinforcement of high- or low-density polyethylene. Besides the experimental investigations, the tensile properties of the corresponding biocomposites were predicted by using micromechanical analysis. It was shown that considering the same fraction of fibrous materials (pulp fibres vs CNFs), the experimental and modelling results revealed that the highest tensile strength was obtained from the pulp fibre-reinforced biocomposites. Regarding the CNFs-reinforced biocomposites, the compatibilizer content had to be up to 20 wt% to experimentally achieve the tensile strength predicted by the model. © 2023 The Author(s)

Place, publisher, year, edition, pages
Elsevier Ltd , 2023. Vol. 173, article id 107678
Keywords [en]
Analytical modelling, Cellulose fibres, Fibre/matrix bond, Mechanical testing, Cellulose, Composites, Fibers, Kraft Papers, Materials, Pulps, Reinforcement, Tensile Strength, Composite materials, Kraft pulp, Analytical modeling, Biocomposite, Cellulose fiber, Cellulose nanofibrils, Comparatives studies, Experimental investigations, Fiber-matrix bonds, Kraft pulp fibers, Pulp fibers, Thermoplastic polymer
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-65986DOI: 10.1016/j.compositesa.2023.107678Scopus ID: 2-s2.0-85164212425OAI: oai:DiVA.org:ri-65986DiVA, id: diva2:1790531
Note

 Correspondence Address: S. Rodríguez-Fabià; RISE PFI, Trondheim, Høgskoleringen 6b, 7491, Norway; 

The Research Council of Norway and the companies supporting the WoBiCo project “From wood to sustainable biocomposites” (Grant no. 328773).

Available from: 2023-08-23 Created: 2023-08-23 Last updated: 2023-08-23Bibliographically approved

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Rodriguez Fabia, SandraChinga Carrasco, Gary

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