Influence of the sampling area of the stem on the mechanical properties of hemp fibers

被引：122

作者：

Duval, Antoine ^{[1
,2
]}

Bourmaud, Alain ^{[1
]}

Augier, Laurent ^{[2
]}

Baley, Christophe ^{[1
]}

机构：

[1] Univ Bretagne Sud, Lab Ingn Mat Bretagne, F-56321 Lorient, France

[2] Fibres Rech Dev, F-10901 Troyes 9, France

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 04期

关键词：

Hemp fiber; Mechanical properties; Diameter; Stem; REINFORCED POLYPROPYLENE COMPOSITES; WOOD CELL-WALLS; FLAX FIBERS; INDUSTRIAL HEMP; NANOINDENTATION; STIFFNESS; STRENGTH; MODULUS; YIELD;

D O I：

10.1016/j.matlet.2010.11.053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Natural fibers appear to be a promising alternative to glass fibers for the reinforcement of polymer matrix composites. However, the wide dispersion of their mechanical properties slows down their development. The aim of this study was to evaluate the influence of the sampling area of the stem on the mechanical properties of hemp fibers. Tensile tests were carried out on fibers extracted from the bottom, the middle, and the top of one stem. The results show there is only slight variations between the different areas: fibers from the middle exhibit higher tensile strength and ultimate elongation than top and bottom fibers, but there are no differences in terms of stiffness. A strong dependence of the fiber mechanical properties on their diameter is observed. This dependence induces more dispersion of the properties than the sampling area, thus it seems relevant to consider the whole stem to extract fibers, without defining distinct areas. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：797 / 800

页数：4

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