聚四氟乙烯(PTFE)是实际生活中应用较广泛的一种高分子材料, 但其性能上的不足一直是国内外学者研究的热点领域。回顾了近年来国内外学者对无机非金属材料二氧化硅(SiO2)填充改性PTFE的一些研究成果, 分析了几种改性手段及填料SiO2含量与偶联剂的表面处理对SiO2/PTFE复合材料的摩擦学性能、力学性能和介电性能的影响, 并从填充物的粒度分布等方面对改性方法、改性效果以及影响因素等进行了归纳总结。
Polytetrafluoroethylene (PTFE) is a kind of polymer material widely used in practical life, but its performance deficiency has been a hot research field for scholars at home and abroad.In this paper, some research results of PTFE filling modified with inorganic non-metallic material silicon dioxide (SiO2) in recent years were reviewed, and the effects of several modification methods, filler SiO2 content and coupling agent surface treatment on the tribological properties, mechanical properties and dielectric properties of SiO2/PTFE composites were analyzed.The modification methods, modification effects and influencing factors were summarized from the aspect of particle size distribution of the fillers.
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基金资助
上海工程技术大学本科生创新项目(CX2121008)
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