Online Characterization of Morphology Development in Rubber Compounds and Immiscible Rubber Blend Clay Nanocomposites，2009国际橡胶会议（6.30-7.2，伦敦，巴黎）-中国聚合物网,论文下载

Online Characterization of Morphology Development in Rubber Compounds and Immiscible Rubber Blend Clay Nanocomposites

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Immiscible Rubber Blend Clay Nanocomposites

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分子表征

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2009国际橡胶会议（6.30-7.2，伦敦，巴黎）

简介：

Themorphologyandfillerdispersioninpolymer-claynanocompositesareusuallycharacterizedbyofflinetechniques,like,transmissionelectronmicroscopy(TEM),atomicforcemicroscopy(AFM)[1],smallangleX-rayscattering(SAXS),nuclearmagneticresonance(NMR)[2]andFouriertransforminfraredspectroscopy(FTIR)[3].Theofflineexperimentaltechniquearenotonlytimecon-suming,laborintensive,expensive,requiringahighexpertisebutalsocrucialindeterminingtheinfluenceofprocessingparametersontheresultingmicrostructure.Replacingtheofflinemeasurementsorminimizingthemwithanonlinemeasurementmethod,whichwouldquitecosteffectiveandeasyinhandling.Theonlinemeasuredelectricalconductance(OMEC)method,reportedinthisarticleisbasedonconductivityandhasbeensuccessfullyusedforthequalitativeandquantitativecharacterizationofthekineticsofcarbonblack(CB)andcarbonnanotubes(CNT)inrubbercompoundsaswellasinrubberblends[4].Theconductivityinthepolymer-claynanocompositesisionicinnature[5].Itispresumedthatmixingorganoclayimpartstheammoniumcationduetointercalationandexfoliationintherubbermatrix.Thus,thereceivedelectricalsignalcanbeusedfortheinvestigationofthechangeoftheclaydispersioninthehostpolymerduringthemixingprocess.Buretal.[5,6]useddielectricalmeasurementsanddetectedtheonlineelectricalsignalsduringmeltmixingofpolyamide-claynanocompositesintwinscrewextrusion.Thismethodgivesthemorphologyofthenanocompositesatonlyoneposition,i.e.thepositionofsensor,butfailstodisplaythecompletespectrumofclaydispersioninthepolymermatrix.

作者：

Z. Ali (Sp), H. H. Le, S. Ilisch, H.-J. Radusch

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2009-08-14 11:00:17

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