Nanocellulose/poly vinyl alcohol fibres: A green renewable high performance composite

Won Jun Lee, Adam J. Clancy, Eero Kontturi, Alexander Bismarck, Milo S P Shaffer

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

Abstract

Cellulose nanocrystals (CNC) are promising candidates as stiff fillers in green, renewable, high performance composites, owing to their intrinsic high strength and stiffness. However, historically CNC materials have had low mechanical properties due to CNC aggregation, poor alignment, and low loading fractions. Here, high loadings of water-soluble CNCs are well dispersed in poly vinyl alcohol (PVOH) to form coagulation spinning dopes for composite fibres. The final fibres contain high CNC loading (up to 60 wt. %) while mechanical behaviour is heavily dependent on CNC loading, with tensile strengths approaching the GPa scale at high loadings. The alignment and crystallinity of CNCs and PVOH along the fibre axis was measured by 2D X-ray scattering to account for these differences. This work provides a possible strategy to the challenging question of preparing practical, high performance, green and renewable composites.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
ISBN (Electronic)9783000533877
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Composite Materials - ICM – Internationales Congress Center München, Munich, Germany
Duration: 26 Jun 201630 Jun 2016
Conference number: 17
http://www.eccm17.org/

Conference

ConferenceEuropean Conference on Composite Materials
Abbreviated titleECCM
CountryGermany
CityMunich
Period26/06/201630/06/2016
Internet address

Keywords

  • Cellulose nanocrystal
  • Composite
  • Fibre
  • Poly vinyl alcohol

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