摘要
首先用不同百分含量的氨丙基三乙氧基硅烷(APS)处理SiO2,然后以水为反应介质,通过化学氧化聚合法合成PPy/APS SiO2纳米复合材料,并利用热失重和四探针对复合材料进行表征和测试。结果表明用APS处理过的SiO2合成的复合材料的电导率和稳定性都有很大提高,其中用1%APS SiO2合成的复合材料电导率最高,为38.46S/cm。
Silica particles were modified by coupling agent aminopropyltriethoxy (APS) and PPy/APS-SiO2 nanocomposites were prepared by chemical polymerization in the medium of water. The resulting materials were characterized by thermogravimetric analysis and four-probe measurements. It's found that the composites synthesized with APS-SiO2 yield an increase in PPy content and have a good stability. Among them, the conductivity of PPy/1% APS-SiO2 was the highest, which was 38.46 S/cm.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2004年第1期69-70,共2页
Journal of Functional Materials
基金
天津市自然科学基金重点资助项目(023802411)
关键词
聚吡咯
二氧化硅
纳米复合材料
硅烷偶联剂
电导率
稳定性
界面改性
Composite materials
Electric conductivity
Interfaces (materials)
Modification
Polymerization
Polypyrroles
Silica
Silicon compounds
Thermogravimetric analysis
