Chemical versus solvent extraction treatment: Comparison and influence on polyester based bio-composite mechanical properties

被引：15

作者：

Krouit, Mohammed ^{[1
]}

Belgacem, Mohamed Naceur ^{[1
]}

Bras, Julien ^{[1
]}

机构：

[1] Grenoble INP Pagora, CNRS, Lab Genie Procedes Papetiers, UMR 5518, F-38402 St Martin Dheres, France

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2010年 / 41卷 / 06期

关键词：

Natural Fibre composite; Polymer Matrix composites (PMCs); Surface properties; Thermomechanical; CELLULOSE FIBERS; SURFACE; POLYMERIZATION; POLYETHYLENE;

D O I：

10.1016/j.compositesa.2010.01.014

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The influence of chemical and solvent extraction compatibilising techniques on the mechanical properties of poly-lactic acid (PLA) and MaterBi(R)-polyester (PEM) based bio-composites are compared. First, fibres were chemically grafted with two fatty chains: stearic anhydride and octadecylisocyanate. Grafted fibres were characterised by FTIR and elemental analyses. Contact angle measurements show the hydrophobisation of the fibres in spite of very low surface grafting. Extracted and non-grafted fibres were prepared to be used as references. PEM and PLA-based composites with 30% w/w were prepared by compression moulding. Their mechanical properties were studied. It was found that chemical and solvent treatment of the fibres improved the reinforcement effect in the case of a PEM matrix and the Young modulus increased by 96%. An important conclusion is that solvent extraction is as efficient as chemical grafting for compatibilisation treatment. These results open new perspectives to prepare industrially efficient bio-composite. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：703 / 708

页数：6

共 21 条

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