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Electroactive Responsive Shape Memory Effect of Carbon Nanotubes Enhancing Polyvinyl Alcohol Nanocomposites  
Electroactive Responsive Shape Memory Effect of Carbon Nanotubes Enhancing Polyvinyl Alcohol Nanocomposites
资料类型: PDF文件
关键词: Shape  memory  PVA  Nanocomposites  CNT  
资料大小: 74K
所属学科: 分子表征
来源: 第六届亚欧研讨会上处理和性能增强聚合物会议文集(2013.6.2-6 武汉)
简介:
Inthepastdecades,shapememorypolymers(SMPs)haveattractedmoreattentioninthefieldofmicro-mechanicalsystemsandmedicaldevicesduetolight-weight,processability,andlow-cost.Recently,thermalresponsivepolyvinylalcohol(PVA)basedSMPshasbeenpreparedmourresearchteam.However,thistypeofSMPsisoftenlimitedintheapplicationduetoexternalheatsourcerestriction.Inthispaper,electroactiveresponsivePVASMPswerepreparedinordertoovercomethisproblem.PVAnanocompositeswerefabricatedwithdifferentcontentsofAMWNTsviatransitionalsolutioncastingandultrasonictreatment.ElectroactiveresponsivebehaviorsofPVA/AMWNTsnanocompositeswereinvestigated.ElectricalconductivityofPVA/AMWNTsnanocompositeswascharacterizedviafour-probemethodanddigitalhigh-resistivitydeterminer.Electricalconductivityofnanocompositeswithlessthan5wt%AMWNTsisextraordinarilylow,andtheconductivityincreasestoahighandstablelevelwiththeincreaseofAMWNTscontent.Theconductivityofnanocompositeswith10wt%AMWNTsincreases10-3S.mandtheshaperecoveryofthenanocompositescouldbetriggeredcompletelywhenapplyingavoltageof120Vtothepredeformedparts.AsthecontentofAMWNTsincreases,thedrivingvoltagedecreases.
作者: E. Z. Ye, T. H. Shen, W. E. Yang, C. Y. Tang, X. L. Xie, F. P. Du
上传时间: 2013-06-28 17:23:43
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zl_2012223090005    2014-03-22 10:28:34
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