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Wednesday, June 2 • 17:20 - 17:40
From flax fiber’s structure to pull-winding bio-composites; how we mimic natural fiber strength to produce thin-walled, high strength composites.

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• The natural flax fiber structure
• Mimicking flax fiber structure with pull-winding
• What this means for composites



The flax plant has been used for clothing for ages. Recently flax has increased use in bio-composites both for its strength and to encourage more sustainable composite production. However looking closely at the composition of the flax fiber, the arrangement of the cellulose fibrils (micro-fibrilliar angles) demonstrates the advantages of both crosswise and longitudinal fiber alignments to help strengthen the fiber. This structure is mimicked in the pull-winding process, where fibers can be both aligned in the longitudinal and crosswise directions. This alignment possibility allows for profiles to be designed with even less materials and with thinner walls. This enables both a savings in materials and a savings in weight overall. Pull-winding can be used to produce bio-composites as well, using for example flax fibers which completes the full circle of mimicking nature.




Speakers, Jury Members & Final...
avatar for Kim SJÖDAHL

Kim SJÖDAHL

Senior Vice President, R&D and Technology, Exel Composites
Mr. Sjödahl has worked for over 20 years in the composites industry and is currently a Senior Vice President and Head of Research & Development and Technology at Exel Composites, the world’s largest manufacturer of pultruded and pull-wound composite solutions. 


Wednesday June 2, 2021 17:20 - 17:40 CEST
Conferences (Hall 6 - Room 611)