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Interfacial Interaction and Mechanical Properties of Rubber/Fibrillar Silicate Nanocomposites  
Interfacial Interaction and Mechanical Properties of Rubber/Fibrillar Silicate Nanocomposites
資料類型: PDF文件
關(guān)鍵詞: fibirillar  silicate  composites  surface  modification  mechanical  properties  
資料大小: 110K
所屬學(xué)科: 分子表征
來源: 第六屆亞歐研討會(huì)上處理和性能增強(qiáng)聚合物會(huì)議文集(2013.6.2-6 武漢)
簡(jiǎn)介:
Fibrillarsilicate(FS)isakindofhydratedmagnesiumaluminumsilicatemineralcomposedofmanyfibrillarnano-singlecrystalscl].Duetoitsuniquestructureandlowcost,ithasattractedmassiveinterestsinindustryapplicationsasafinefillerforreinforcingpolymersE2‘31.Inthiswork,FSwasfirstlysurfacemodifiedbysilanecouplingagentbyusingtraditionalmethod,andthenFS/rubbernanocompositesweresuccessfullypreparedbydirectlymixingmodifiedFSwithrubbermatrix.ItisfoundthatFScouldbeseparatedintonano-fibrilswithdiameterslessthan100nmbytheshearforcesduringmixing.Comparedwithpristinerubber,FS/rubbercompositespossesshigherhardness,tensilestressat100%strain,tensilestrength,andtearstrength,whichdemonstratedthatmodifiedFSshowedexcellentreinforcingeffectsonrubber.TofurtherimprovetheinterfacialinteractionbetweenFSandrubber,thesurfacemodificationofFSwasalsoconductedbyusinganewmodificationmethodnamedsupercriticalC02(SC-C02)technique.Theresultsshowedthatchemicaladsorptionofthemodifier(KH570)onFSsurfacedominatesandamoreuniformadsorptionofthemodifieronFSsurfaceissuccessfullyobtainedbyusingsc-C02method.Asaresult,amoreuniformdispersionofFSinrubbermatrixandastrongerinterfacialinteractionbetweenFSandrubberaresuccessfullyachievedbysurfacemodificationofFSinSC-C02,whichleadtotheobviouslyenhancedmechanicalpropertiesofthecomposites.
作者: N. Y. Ning, M. Tiad, X. L. Zhang, Y. C. Yu,L. Q. Zhang
上傳時(shí)間: 2013-06-26 13:54:38
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消耗積分: 2  
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