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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
資料類型: PDF文件
關鍵詞: Shape  memory  PVA  Nanocomposites  CNT  
資料大?。?/td> 74K
所屬學科: 通用高分子材料
來源: 來源網(wǎng)絡
簡介:
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.
上傳人: liu
上傳時間: 2013-06-28 17:23:43
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