摘要
使用超细及纳米SiO2颗粒和Al2O3颗粒填充改性聚四氟乙烯(PTFE)塑料,测量其硬度(HB),并使用扫描电镜对其表面形貌进行了分析。结果表明,SiO2纳米粒子填充较SiO2微米粒子填充的PTFE复合材料的硬度高 34%~60%。Al2O3纳米粒子填充较Al2O3微米粒子填充的PTFE复合材料的硬度高。用溶胶凝胶法制得的纳米 SiO2/PTFE复合材料比用机械混合法制备的高。
Polytetrafluoroethylene (PTFE) was filled with different SiO2 and Al2O3 particles and the hardness was compared. It showed that the hardness of the composites filled with nanosized SiO2 is about 34 % --60 % higher than those with microsized SiO2. Similar effect was observed for Al2O3, The hardness of SiO2/PTFE nanocomposites prepared via sol-gel process was higher than that via mechanical mixing.
出处
《中国塑料》
CAS
CSCD
北大核心
2005年第11期47-49,共3页
China Plastics
关键词
聚四氟乙烯
填料
硬度
复合材料
溶胶凝胶法
polytetrafluoroethylene
filler
hardness
composite
sol-gel process