二氧化钛/多壁碳纳米管/聚芳醚腈三元复合材料的介电性能  

Dielectric Property of Titanium Dioxide/Multi-walled Carbon Nanotube/Poly(arylene ether nitrile)Three-component Composites Materials

作　　者：黄旭[1] 刘孝波[1] 

机构地区：[1]电子科技大学微电子与固体电子学院、耐高温高分子及复合材料四川省重点实验室,成都610054

出　　处：《绝缘材料》2014年第5期55-59,共5页Insulating Materials

摘　　要：通过溶剂流延成膜法配合超声辅助分散制备一种二氧化钛/多壁碳纳米管/聚芳醚腈(TiO2/MWCNT/PEN)三组分复合材料薄膜。对纯PEN薄膜和TiO2/MWCNT/PEN三组分复合材料薄膜的脆断面形貌进行表征,对比分析了TiO2/PEN二组分复合材料薄膜、MWCNT/PEN二组分复合材料薄膜以及TiO2/MWCNT/PEN三组分复合材料薄膜在50 Hz^100 kHz频率内的介电性能。结果表明:超声分散技术使TiO2和MWCNT在PEN基体中分散均匀;同时加入20%TiO2和3%MWCNT的TiO2/MWCNT/PEN复合材料薄膜的介电常数达到26(50Hz),说明这两种填料对复合材料介电常数的提高有协同作用。A titanium dioxide/multi-walled carbon nanotube/poly（arylene ether nitrile） （TiO2/MWCNT/PEN） three-component composites film was prepared by film casting method combined with ultrasonic treat-ment. The fracture morphology of the pure PEN film and TiO2/MWCNT/PEN three-component composite films were characterized, and the dielectric property of TiO2/PEN, MWCNT/PEN, and TiO2/MWCNT/PEN composite films at 50-100 kHz were analyzed. The results show that the ultrasonic treatment can make the TiO2 and MWCNT well disperse in the PEN matrix. The dielectric constant of the TiO2/MWCNT/PEN composites films with 20% TiO2 and 3% MWCNT attains 26 at 50 Hz, which indicate that the two fillers have synergistic enhancement effect to the dielectric constant of the composites.

关 键 词：二氧化钛 多壁碳纳米管 聚芳醚腈 复合材料薄膜 介电性能 介电常数 

分 类 号：TM215[一般工业技术—材料科学与工程] TM201.4[电气工程—电工理论与新技术]