以纳米氧化锌为填充剂,通过乳液共混方法制备了纳米氧化锌改性聚四氟乙烯复合材料。实验确定了较理想的复合工艺,能够在成本基本不变的条件下明显改善复合材料的多项性能。另外,通过扫描电镜观察了复合材料的微观结构,研究了纳米氧化锌颗粒的粒度分布,分析了复合材料的性能随增强体加入量的变化规律,在此基础上,探讨了纳米氧化锌改性聚四氟乙烯的机理。
Abstract
Nanometer ZnO reinforced PTFE(polytetrafluoroethylene) composite was prepared by employing nanometer ZnO as reinforcements and the way of latex commixing. Comparative combining process was determined in this research, which enables the improvements on a plurality of properties of the composite while the cost kept unchanged. Furthermore, the microstructures of the composite were investigated with the aid of scanning electron microscope, and the size distributions of nanometer ZnO were studied as well. The relationship between properties of the composite and the volume fraction of the ZnO reinforcements was analyzed in accordance to the experimental results. Based on the above-mentioned work the strengthening mechanism of nanometer ZnO reinforced PTFE was developed.
关键词
纳米氧化锌 /
聚四氟乙烯复合材料 /
乳液共混
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Key words
nanometer ZnO /
PTFE composite /
latex commixing
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参考文献
FEI Li,HU Ke-ao,LI Jian-lin,et al.The friction and wear characteristicsof nanometer ZnO filled polyte-trafluoroethylene[J].WEAR,2001,249:877-882.
刘厚才,庞佑霞.Ekonol-PTFE-石墨自润滑复合材料的磨损性能研究[J].湘潭矿业学院学报,2000,15(3):52-56.
周坤磷,曹伟民,张勇,等.氮化钛超微细粉PTFE基复合材料的摩擦性能[J].科学通报,1997,42(16):1732-1735.
张招柱,薛群基,沈维长,等.金属填充PTFE复合材料的摩擦磨损性能研究[J].高分子材料科学与工程,1999,15(1):68-72.
杨生荣,刘维民,薛群基,等.金属纤维增强PTFE基复合材料的摩擦学性能[J].摩擦学学报,1998,18(1):66-70.
黄锐,王旭,李忠明.纳米塑料[M].北京:中国轻工业出版社,2002.
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脚注
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