Novel Hybrid Flax Reinforced Supersap Composites in Automotive Applications

Fibers

Jinchun Zhu¹  Kirsi Immonen³  Christophe Avril²  James Brighton¹  Huijun Zhu¹  Hrushikesh Abhyankar¹ 

[1] Centre of Automotive Technology, Cranfield University, Cranfield, MK43 0AL, UK; E-Mails:;MahyTec, 210 avenue de Verdun, 39100 Dole, France; E-Mail:;Valtion Teknillinen Tutkimuskeskus (V.T.T.), Sinitaival 6, FI-33101, Tampere, Finland; E-Mail:

关键词: hybrid flax;    supersap bi-epoxy;    mechanical properties;    environmental resistance;   

DOI  :  10.3390/fib3010076

来源: mdpi

【 摘 要 】

Flax fibre bio-epoxy composites have not found many commercial uses in structural applications on account of their lack of cost efficiency and high susceptibility to environmental changes. Non-woven flax mats were subjected to alkali, acetylation, silane and enzymatic treatment, and then combined with untreated unidirectional (UD) flax fabrics to make hybrid flax bio-epoxy composites. Mechanical and environmental resistance (aging) tests were performed on the treated flax fibres. The glass transition temperature was detected at about 75 °C with little effect of treatments. Untreated composites were found to have a tensile strength of 180 MPa while no significant improvement was observed for any of the treatments, which are also not environmentally friendly. The amiopropyltriethoxysilane (APS) composites after Xenon aging, retained the tensile strength of 175 MPa and a modulus of 11.5 GPa, while untreated composites showed 35% reduction in elastic modulus.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.