Accelerated ageing of surface modified flax fiber reinforced composites

verfasst von

Natalie Vellguth, Madina Shamsuyeva, Hans Josef Endres, Franz Renz

Abstract

The overall aim of this study is to evaluate application-oriented potential of biocomposites made of surface-modified flax fibers for use in engineering thermoplastics. The scope of the study includes analysis of the effect of a partially bio-based epoxy-coating, a silane treatment and a combined epoxy-coating / silane treatment of the flax fibers on the mechanical behavior of biocomposites after thermo-oxidative aging. The treated flax fabrics were subjected to tensile tests as well as scanning electron microscopy (SEM) to compare their mechanical behavior and fracture surface. The natural fiber reinforced biocomposites were manufactured through film-stacking of the treated fabrics and polyamide 6 (PA6) using hot-pressing. The durability of the biocomposites after climate-change tests was confirmed via tensile and bending testing. The results show beneficial mechanical behavior of treated fabrics and corresponding biocomposites, but also negative affected durability of treated composites after climate-change tests. Treatment of the fabrics with subsequent accelerated aging leads to a similar low level of tensile and bending moduli.

Organisationseinheit(en)

Institut für Kunststoff- und Kreislauftechnik
Institut für Anorganische Chemie

Externe Organisation(en)

Fraunhofer-Institut für Holzforschung - Wilhelm-Klauditz-Institut (WKI)

Typ

Artikel

Journal

Composites Part C: Open Access

Band

6

ISSN

2666-6820

Publikationsdatum

10.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffmechanik, Keramische und Verbundwerkstoffe, Maschinenbau

Ziele für nachhaltige Entwicklung

SDG 13 – Klimaschutzmaßnahmen

Elektronische Version(en)

https://doi.org/10.1016/j.jcomc.2021.100198 (Zugang: Offen)