硅酮改性聚乙烯复合材料及其耐磨性能研究
Study on Silicone Modified Polyethylene Composites and Their Wear Resistance Properties
制备硅酮质量分数分别为0、1%、3%、5%、7%的硅酮改性聚乙烯(PE)复合材料,采用傅里叶变换红外光谱分析、热性能测试、力学性能测试以及摩擦系数与耐磨性能测试对复合材料的结构和性能进行表征。结果表明:适量添加硅酮可提升复合材料的热稳定性和力学性能,降低摩擦系数、磨损率和磨损宽度。当硅酮质量分数为5%时,复合材料的综合性能达到最佳。然而,当硅酮质量分数增加至7%时,部分性能因团聚现象出现下降。研究表明:添加质量分数为5%的硅酮能够有效优化聚乙烯复合材料的性能。
Silicone modified polyethylene (PE) composites were prepared with the silicone mass fractions of 0, 1%, 3%, 5% and 7%, and the structure and properties of the composites were characterized using Fourier transform infrared spectroscopy analysis, thermal property testing, mechanical property testing, as well as friction coefficient and wear resistance testing. The results indicate that the appropriate addition of silicone can improve the thermal stability and mechanical properties of composites, reduce the friction coefficient, wear rate and wear width. When the mass fraction of silicone is 5%, the comprehensive performance of the composite reaches its optimum. However, when the mass fraction of silicone increases to 7%, some performance decreases due to agglomeration phenomenon. The research has shown that adding silicone with a mass fraction of 5% can effectively optimize the performance of polyethylene composites.
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