Chemical modification of flax reinforced polypropylene composites

被引：156

作者：

John, Maya Jacob ^{[1
]}

Anandjiwala, Rajesh D. ^{[1
,2
]}

机构：

[1] CSIR Mat Sci & Mfg, Fibres & Text Competence Area, ZA-6000 Port Elizabeth, South Africa

[2] Nelson Mandela Metropolitan Univ, Fac Sci, Dept Text Sci, ZA-6000 Port Elizabeth, South Africa

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2009年 / 40卷 / 04期

关键词：

Polymer matrix composites; Fibre/matrix bond; Mechanical testing; Compression moulding; MECHANICAL-PROPERTIES; ZEIN; BIOCOMPOSITES; FIBERS;

D O I：

10.1016/j.compositesa.2009.01.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents an experimental study on the static and dynamic mechanical properties of nonwoven based flax fibre reinforced polypropylene composites. The effect of zein modification on flax fibres is also reported. Flax nonwovens were treated with zein coupling agent, which is a protein extracted from corn. Composites were prepared using nonwovens treated with zein solution. The tensile, flexural and impact properties of these composites were analysed and the reinforcing properties of the chemically treated composites were compared with that of untreated composites. Composites containing chemically modified flax fibres were found to possess improved mechanical properties. The viscoelastic properties of composites at different frequencies were investigated. The storage modulus of composites was found to increase with fibre content while damping properties registered a decrease. Zein coating was found to increase the storage modulus due to enhanced interfacial adhesion. The fracture mechanism of treated and untreated flax reinforced polypropylene composites was also investigated from scanning electron microscopic studies. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：442 / 448

页数：7

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