Continuous glass fiber reinforced wood plastic composite in extrusion process: Mechanical properties
Continuous glass fiber reinforced wood plastic composite in extrusion process: Mechanical properties
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DOI：
10.1016/j.matdes.2013.04.082
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发表时间：
2013-10
影响因子：
8.4
通讯作者：
A. Zolfaghari;A. Behravesh;A. Adli
中科院分区：
文献类型：
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作者：
A. Zolfaghari;A. Behravesh;A. Adli
本文介绍了一种低体积分数的连续玻璃纤维增强木塑复合材料（WPC）的材料开发的实验研究（连续混杂WPC）。通过挤出工艺生产了连续玻璃纤维增强WPC（CGFR-WPC）圆柱形型材。研究了木材含量、连续玻璃纤维体积分数和偶联剂的存在对最终制品力学性能的影响。对挤压试样进行了三点弯曲、拉伸和冲击试验。结果表明，在所有的机械性能的显着改善，其中通过将六个粗纱（连续）纤维增强材料加入到WPC中应用低比例的连续增强材料，观察到弯曲，拉伸和冲击强度的最大增加分别为2.3，5.9和20倍。通过常规的工艺和材料参数的变化来实现这些大的性能提高还没有报道。值得注意的是，当应用大量增强材料时，WPC中偶联剂的存在对拉伸性能表现出负面影响。
This paper presents an experimental study on the material development where wood plastic composites (WPCs) were reinforced with continuous glass fibers (continuous hybrid WPC) at a low volume fraction. The continuous glass fiber reinforced WPC (CGFR-WPC) were produced in cylindrical profiles via an extrusion process. Experiments were carried out to investigate the effect of wood content, volume fraction of continuous glass fiber and the presence of coupling agent on the mechanical properties of the final products. Three point bending, tensile and impact tests were carried out on the extruded specimens. The results revealed an outstanding improvement in all the mechanical properties, where applying a low fraction of continuous reinforcement via incorporating six rovings of (continuous) fiber reinforcements into the WPCs, maximum increase in flexural, tensile and impact strength were observed to be 2.3, 5.9 and 20 times, respectively. Achieving these large increases in properties via conventional variations in processing and material parameters has not been reported. It is interesting to note that, when applying a larger number of reinforcements, presence of coupling agent in WPCs, exhibited a negative effect on the tensile properties.