Effects of glass fiber content on properties of bamboo flour/ high density polyethylene composites

被引：0

作者：

Zhang J. ^{[1
]}

Ning L. ^{[1
,2
]}

Yang H. ^{[1
]}

Wu B. ^{[1
]}

Luo S. ^{[1
]}

Rong Z. ^{[1
]}

机构：

[1] College of Forestry, Sichuan Agricultural University, Chengdu

[2] Key Laboratory of Wood Industry and Furniture Engineering, Sichuan Agricultural University, Chengdu

来源：

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2016年 / 33卷 / 03期

关键词：

Coefficient of linear expansion; Friction and wear properties; Glass fiber; Mechanical properties; Thermal conductivity coefficient; Wood plastic composites;

D O I：

10.13801/j.cnki.fhclxb.20150623.004

中图分类号：

学科分类号：

摘要：

In order to enhance the comprehensive properties of wood plastic composites by using glass fiber and investigate the effect laws of glass fiber content on the properties of bamboo flour/high density polyethylene (HDPE) composites, the surfaces of bamboo flour were modified by A-171 silane coupling agent and a certain amount of glass fiber were added firstly. Then, glass fiber-bamboo flour/HDPE composites were prepared by hot pressing molding technology. Finally, the influences of glass fiber content on the mechanical properties, thermal properties and tribological behaviors of the composites were observed, and the morphologies of fracture surfaces and worn surfaces of the materials were observed by SEM. The results show that when the glass fiber content is 3wt%, the tensile strength and flexural strength of bamboo flour/HDPE composites can be enhanced significantly; comparing with the composite without the addition of glass fiber, the tensile strength and flexural strength of composites after the addition of glass fiber increase by 19.41% and 23.54% respectively. The coefficient of linear expansion of composites in length-width direction decreases obviously with the glass fiber content increasing during the temperature range of 30-60℃, while the coefficient of linear expansion of the same composite gradually increases with the temperature increasing. In nitrogen atmosphere, with the glass fiber content increasing, the friction coefficient of bamboo flour/HDPE composites increases gradually at first and then almost remains unchanged, and the wear rate decreases gradually. The conclusions obtained show that the wood plastic composite products with the glass fiber content of 3wt%-7wt% are suitable for construction beams (such as pavilions or bridges et al), while the wood plastic composite products with the glass fiber content of 7wt%-10wt% are suitable for the ground pavement for places with large flow of people (such as park or recreational greenway et al). © 2016, BUAA Culture Media Group Ltd. All right reserved.

引用

页码：477 / 485

页数：8

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