Title: Study of coupling agent modification of cotton stalk bast fibres reinforced polylactic acid flame-retardant composites

Authors: Bo Wang; Chunyan Wei; Yongzhu Cui; Lihua Lv

Addresses: Dalian, The Textile and Material Engineering College, School of Textile and Material Engineering, Dalian Polytechnic University, No. 1 Qinggong Centre, Gnjingzi District, Dalian City 116000, China ' Dalian, The Textile and Material Engineering College, School of Textile and Material Engineering, Dalian Polytechnic University, No. 1 Qinggong Centre, Gnjingzi District, Dalian City 116000, China ' Dalian, The Textile and Material Engineering College, School of Textile and Material Engineering, Dalian Polytechnic University, No. 1 Qinggong Centre, Gnjingzi District, Dalian City 116000, China ' Dalian, The Textile and Material Engineering College, School of Textile and Material Engineering, Dalian Polytechnic University, No. 1 Qinggong Centre, Gnjingzi District, Dalian City 116000, China

Abstract: In this experiment, cotton stalk bast fibre was modified, respectively, with A-171, KH-550 and TC-114 coupling agent, to improve the mechanical properties of fibre board. After testing the modified fibre board for its mechanical properties and analysing coupled fibre with FT-IR, it is proved that there were some new groups introduced into the fibre. Experimental results showed that adding A-171 and KH-550 type of silane coupling agent improves the mechanics properties of the material increasingly. A-171-type silane coupling agent was better for tensile strength and bending strength of the fibre board, increased by 31 and 65%, respectively, and the notched impact strength of fibre board KH-550 silane coupling agent was larger, and could be increased by 52.2%.

Keywords: coupling agents; mechanical properties; cotton stalks bast fibres; PLA; polylactic acid; fibre board; fibre reinforced composites; flame retardant composites; silane; tensile strength; bending strength; notched impact strength.

DOI: 10.1504/IJMMP.2014.066566

International Journal of Microstructure and Materials Properties, 2014 Vol.9 No.2, pp.199 - 209

Published online: 30 Apr 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article