NON-DRIED FLAX FIBRE REINFORCED THERMOPLASTIC COMPOSITES IN WET ENVIRONMENTS

Javanshour Farzin*, Prapavesis Alexandros, Layek Rama Kanta, Van Vuure Aart Willem, Sarlin Essi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The long-term performance of natural fibre reinforced thermoplastic (NFRP) composites is critical for developing more sustainable structures. The defects developed in NFRP due to fibre swelling and shrinkage in wet service conditions constitute a significant issue. Here, a method for restricting the in-service swelling and shrinkage of NFRP is proposed. The NFRP composites were processed with swollen fibres stored in moist conditions before thermoplastic resin infusion. The swelling of water-saturated NFRP was decreased up to 56% by non-dry fibres. The similar in-plane shear strength and transverse tensile strength of NFRP composites processed with oven-dried and preconditioned fibres (at 50% RH) showed the in-situ polymerisation of poly (methyl methacrylate) (PMMA) to be insensitive to moisture. Processing composites with preconditioned fibres (at 90% RH) decreased the water immersion ageing sensitivity for in-plane shear properties of NFRP from 30% to nearly zero.

Original languageEnglish
Title of host publicationECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
EditorsAnastasios P. Vassilopoulos, Veronique Michaud
PublisherEPFL-CCLab : Composite construction laboratory
Pages1031-1038
Number of pages8
Volume3
ISBN (Electronic)978-297016140-0
Publication statusPublished - 2022
MoE publication typeA4 Article in a conference publication
Event20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022

Conference

Conference20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Country/TerritorySwitzerland
CityLausanne
Period26/06/2230/06/22

Funding

This project was funded by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 764713-FibreNet.

Keywords

  • Adhesion
  • Biocomposites
  • Durability
  • Mechanical testing
  • X-CT analysis

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