Viscoelastic and thermal behavior of woven hemp fiber reinforced poly(lactic acid) composites

被引：90

作者：

Song, Young Seok ^{[2
]}

Lee, Jung Tae ^{[1
]}

Ji, Dong Sun ^{[2
]}

Kim, Myung Wook ^{[1
]}

Lee, Seung Hwan ^{[3
]}

Youn, Jae Ryoun ^{[1
]}

机构：

[1] Seoul Natl Univ, RIAM, Dept Mat Sci & Engn, Seoul 151744, South Korea

[2] Dankook Univ, Dept Fiber Syst Engn, Yongin 448701, Gyeonggi Do, South Korea

[3] Korea Text Dev Inst, Appl Text Res Team, Taegu 703712, South Korea

来源：

COMPOSITES PART B-ENGINEERING | 2012年 / 43卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Fabrics; Polymer-matrix composites (PMCs); Thermal properties; Mechanical properties; MECHANICAL-PROPERTIES; POLYPROPYLENE COMPOSITES; SURFACE-TREATMENTS; IMPACT; STRENGTH; PLA;

D O I：

10.1016/j.compositesb.2011.10.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study examined the physical behavior of hemp/poly(lactic acid) (PLA) composites, particularly the thermal properties and viscoelastic behavior. Twill and plain woven hemp fabrics were used as reinforcements and hemp fabrics-reinforced PLA composites were produced using a film stacking method. The coefficient of thermal expansion of the composites decreased sharply with increasing the volume fraction of fiber. The twill structure was found to be suitable for reinforcing a PLA resin with higher impact strength and better mechanical properties than the plain woven. The viscoelastic properties of the composites including the storage modulus, loss modulus and loss tangent were also examined by dynamic mechanical analysis. In addition, morphological analysis was performed using scanning electron microscopy. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：856 / 860

页数：5

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