二氧化钛聚苯胺掺杂硅橡胶介电弹性体制备及表征(XXXX)

毕业论文电活性弹性体的制备及性能研究学生姓名：学号：学院：专业：指导教师：2012年6月高继海0803044135材料科学与工程学院与工程与工程复合材料与工程孙友谊中北大学2012届毕业论文电活性弹性体的制备及性能研究摘要：采用溶液共混法，溶液混合法是目前使用较多的方法，将实验室自制的二氧化钛填料分散于A组份中，磁搅拌一定时间后，再超声分散适当时间，加入B组份，再经磁搅拌并抽真空，放入烘箱中固化。将不同形貌聚苯胺分散于A组份中，磁搅拌后，再超声分散一定时间，加入B组份，再经磁搅拌，抽真空后，放入烘箱中固化。实验结果表明：掺杂不同质量分数的二氧化钛，固化不同时间，以及掺杂不同形态的聚苯胺三个因素对制备的掺杂型电活性弹性体膜的力学性能，体积电阻率和介电常数均有较大影响，而介电常数是表征电活性弹性体的重要性能指标。关键词：溶液共混法，二氧化钛，聚苯胺，电活性弹性体，介电常数中北大学2012届毕业论文ElectricityactiveelastomerpreparationandperformanceresearchAbstract:Usingthesolutionaltogethertomixthelaw,thesolutionmixingmethodisusedmostlyatpresent,Theexperimentdispersesthelaboratoryself-restrainttitaniumdioxidepaddingintheAcomponent,aftermagnetismagitationcertaintime,usingthesupersonictodisperseritsometime,thenjoiningtheBcomponent,passingthroughmagnetismagitationandpullingoutthevacuum,puttinginthedryingoventosolidifyfinally.TheexperimentgathersthedifferentappearanceoftheanilinetodisperseintheAcomponent,aftermagnetismagitation,usingthesupersonictodispersercertaintimeagain,thenjoiningtheBcomponent,passingthroughmagnetismagitationagain,afterpullingoutthevacuum,puttinginthedryingoventosolidifyfinally.Theexperimentalresultindicatedthatthethreefactors,thatisdopedwithdifferentmassfractionoftitaniumdioxide,curingtime,anddopedwithdifferentformsofpolyaniline,havegreatinfluenceonmechanicalproperty,volumeresistivityanddielectricconstantofpreparationofelectroactiveelastomersfilm.Thedielectricconstantisthecharacterizationofelectroactiveelastomersimportantperformanceindex.Keywords:Thesolutionaltogethermixesthelaw,thetitaniumdioxide,gatherstheaniline,theelectricityactiveelastomer,coefficientofdielectricalloss中北大学2012届毕业论文第I页共Ⅱ页目录1综述..........................................................................................................................11.1前言.......................................................................................................................11.1.1电活性弹性体基本定义....................................................................................11.1.2电活性弹性体分类............................................................................................11.1.3电活性弹性体特点及应用领域........................................................................31.2电活性弹性体的研究现状...................................................................................41.2.1高介电材料的研究............................................................................................61.3掺杂型电活性弹性体材料的制备方法...............................................................81.3.1机械共混法........................................................................................................81.3.2溶液共混法........................................................................................................81.3.3原位共混法........................................................................................................81.3.4化学共混法........................................................................................................91.4目前电活性弹性体面临的问题...........................................................................91.5课题的提出与意义...............................................................................................92实验部分................................................................................................................122.1实验原料与仪器设备.........................................................................................122.2材料的制备.........................................................................................................132.2.1填充粒子的制备..............................................................................................132.2.3掺杂硅橡胶复合膜的制备..............................................................................152.3表征测试方法.....................................................................................................163结果与分析............................................................................................................183.1填充粒子的结构与性能分析.............................................................................183.1.1二氧化钛纳米粒子分析..................................................................................183.1.2球形聚苯胺粒子分析......................................................................................193.2硅橡胶膜的制备与性能分析.............................................................................213.2.1弯曲试验分析..................................................................................................213.2.2力学性能分析..................................................................................................23中北大学2012届毕业论文第II页共Ⅱ页3.3二氧化钛掺杂硅橡胶膜的结构与性能分析.....................................................243.3.1二氧化钛掺杂硅橡胶膜电镜结构分析..........................................................243.3.2力学性能分析..................................................................................................263.3.3电阻率分析......................................................................................................283.3.4介电常数的分析........................................................................