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
