Polypropylene/natural fibres composites: Analysis of fibre dimensions after compounding and observations of fibre rupture by rheo-optics

被引：63

作者：

Le Duc, Anne ^{[1
]}

Vergnes, Bruno ^{[1
]}

Budtova, Tatiana ^{[1
]}

机构：

[1] MINES ParisTech, CNRS, UMR 7635, Ctr Mise Forme Mat CEMEF, F-06904 Sophia Antipolis, France

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2011年 / 42卷 / 11期

关键词：

Fibres; Polymer-matrix composites; Optical microscopy Physical methods of analysis; Natural fibres; REINFORCED POLYPROPYLENE; MECHANICAL-PROPERTIES; FLAX FIBERS; TENSILE; SHEAR; DEFORMATION; DAMAGE;

D O I：

10.1016/j.compositesa.2011.07.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fibre size distribution and the way how fibres are breaking during compounding with polypropylene were analysed. Two types of cellulose-based fibres were used: natural flax and man-made (regenerated) cellulose, Tencel. No significant influence of Tencel initial fibre size on its final size after processing was observed. However, the fibre type and the presence of defects have a stronger effect on the rupture. The value of the average final length of flax fibres was found to be similar to the distance between kink bands. In order to understand fibre rupture mechanisms, they were observed using a rheo-optical system which enabled visualization of fibre break-up. All fibres studied broke by fatigue after an accumulation of strain, contrarily to what is known for glass fibres. Flax fibres broke around the kink bands while Tencel (R) broke after numerous bending. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1727 / 1737

页数：11

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