聚苯胺2f涤纶复合导电织物的制备与性能的的研究

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1、工艺制备的复合导电织物的K／S值较大，说明聚苯胺吸附量较高；复合导电织物的力学性能改变不大；经超声洗涤5次后，表面电阻率仍可稳定在0．89KQ；具有一定的电磁屏蔽效能。关键词：低温等离子；聚苯胺；原位聚合；导电织物PreparationandPropertyStudy0fPolyaniline／PolyesterCompositeConductiveFabricAbstractPolyanilineshowsattractiveprospectsinmanyrespects，easytoprepare，cheaprawmaterial，hi．gllconductivity，e

2、nvironmentalstability，etc．Buttheinsolubilityandnon·meltingofthismaterialhavelimiteditsfurtherprocessing。However,depositionofpolyanilineonconventionalfiberwillprovideacompositefabricwhichpossessesthegoodconductivityofpolyanilineandtheflexiblepropertyoffiberfabric．Atpresentpolymerization／nsit

3、uisthemainmethodofpreparingpolyanilinecompositeconductivefabric．Butthematerialmadeinthiswayhasshownweakfastnessofpolyanilineonthematrixfabric；lowerdepositionofpolyanilinealsoleadstolowerconductivity．Inthisstudy,themicroscopicsurfaceofthematrixfabricwassignificantlymodifiedbytreatmentofpolye

4、sterfabricwithalkaliatlowconcentrationandusingplasmaoflowtemperature．ThecompositeconductivefabricWasthenpreparedby／ns／tupolymerizationtoformpolyanilinelayersonthesurfaceofpolyesterfabric．Themaininfluencingfactorsofpretreatmentwhichhavebeenstudiedincludeconcentrationofalkali，alkalideweightin

5、gtime，alkalideweightingtemperature，andthepressure，power,processingtimeoflowtemperatureplasma．Theinfluenceofthesefactorsonthesurfaceresistivityofcompositeconductivefabrichasbeenestablished．Meanwhile，fortheprocessofinsitupolymerization，theconcentrationofmonomer，concentrationofammoniumpersulfa

6、te，oxidationreactiontime，andthetypeandconcentrationofdopingacidhavealsobeeninvestigated．AlkalideweightingwithNaOH(20g／L)at90℃for90minutesandlowtemperatureplasma(300w'30Pa，4minutes)weretheoptimumconditionsforpretreatment．／nsitupolymerizationwasbestcarriedoutwithammoniumpersulfate(0．0259／m1)a

7、soxidant；hydrochloricacidasthedopingacid(0．6mol／L)．Thepreprocessedfabricwasfirstimmersedinasolutionofanilinemonomer(0．3mol／L)for1．5hours；oxidativepolymerizationfor90minutesproducedacompositeconductivefabricwiththelowestsurfaceresistivityof0．07KQ．Thesnllc