采用PMMA填充的一维纳米材料介电性能研究  

Dielectric characteristics of a One Dimensional Nano-material Using PMMA Stuff

作　　者：张冬[1,2] 宋伟[1,2] 何丽娟[1,2] 王暄[1,2] 雷清泉[1,2] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150080 [2]哈尔滨理工大学工程电介质及其应用教育部重点实验室,哈尔滨150080

出　　处：《高电压技术》2010年第6期1403-1406,共4页High Voltage Engineering

基　　金：国家自然科学基金(50977020);国家重点基础研究发展计划(973计划)(2009CB724505)~~

摘　　要：为了制备以聚甲基丙烯酸甲酯(PMMA)填充纳米孔的新型一维纳米材料并对其电性能进行研究,采用偶氮二异丁氰引发甲基丙烯酸甲酯(MMA)在一种径迹刻蚀聚合物纳米孔膜的纳米孔(孔径为50nm)中聚合,制得此一维纳米材料,并通过高压设备、介电谱仪、高阻计等装置测定此一维纳米材料的击穿电压、电导电流、相对介电常数和介质损耗角正切随频率变化情况等介电性能。实验结果表明这种新型一维纳米材料的击穿场强虽然低于PMMA,但较原始聚合物纳米孔膜的击穿场强有所提高,且通过控制反应条件等,具有进一步提高的可能。To research the preparation of a one-dimensional （1D） nano-material and its dielectric characteristics,induction polymerization of methyl methacrylate （MMA）was initiated by 2,2′-Azobisisobutyronitrile at the nano-hole of a track etch polymer film,and the kind of one-dimensional （1D） nano-material was obtained.The dielectric characteristics of these nano-materials,such as brokendown voltage,conduction current,the relationship of permittivity and dissipation factors dependence of frequency,were investigated by high-voltage device,precision impedance analyzer and high resistance meter etc.Through these measurements we draw the conclusion that this kind of 1D nano-material exhibits a higher dielectric strength than the original polymer film,though slightly lower than the brokendown strength of pure PMMA film.And through further controlling reaction conditions,the dielectric characteristics may be improved significantly.

关 键 词：一维纳米材料 以聚甲基丙烯酸甲酯 介电性能 聚合反应 聚合物纳米孔膜 复合 

分 类 号：TB383.1[一般工业技术—材料科学与工程]