木塑复合材料的机械性能变化与混合木纤维大小的木塑复合材料
Hailong Xu1, Yang Yang2, Lifen Li3
1School of Data Science and Information Engineering, Guizhou Minzu University, Guiyang 550025, China.
Materials (Basel, Switzerland)
|September 9, 2023
概括
木塑复合材料 (WPC) 的机械性能取决于木纤维的大小. 混合纤维尺寸可以提高WPC性能,特定混合物在曲,拉伸和冲击强度方面表现出色. 混合物规则模型准确地预测了WPC的行为.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 复合材料 复合材料 复合材料
背景情况:
- 木塑复合材料 (WPC) 是一种结合木纤维和聚合物的工程材料.
- 优化WPC机械性能对于其应用和性能至关重要.
- 纤维颗粒大小是影响复合材料行为的一个关键因素.
研究的目的:
- 研究木纤维颗粒大小对木塑复合材料 (WPC) 机械性能的影响.
- 为了评估用单一和混合木纤维大小增强的WPC的性能.
- 评估各种模型对WPC机械性能的预测准确度.
主要方法:
- 用高密度聚乙烯 (HDPE) 增强四种不同尺寸的木纤维 (10-20, 20-40, 40-80, 80-120网格) 的WPCs的实验性表征.
- 机械测试包括曲,拉伸和冲击强度测量.
- 使用混合规则 (ROM),混合逆规则 (IROM) 和希尔什模型来预测复合性能的数值建模.
主要成果:
- 最小的纤维尺寸 (80-120网格) 产生了最低的曲和拉伸性能,但具有最高的冲击强度 (15.79 kJ/m2).
- 与单个尺寸相比,混合纤维尺寸通常会改善机械性能.
- 20-40和40-80网状纤维的混合物提供了最佳的曲和拉伸性能.
- 所有四种纤维大小的混合实现了最高的冲击强度 (16.08 kJ/m2).
结论:
- 木纤维颗粒大小显著影响WPC的机械性能.
- 优化混合木纤维尺寸可以增强特定的机械特性.
- 混合物规则 (ROM) 模型在预测具有多尺寸纤维增强的WPC的机械性能方面表现出最高的准确性.
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