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1、高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005聚胺酯(PU)彈性體之設計及應用施文昌OutlineIntroductionClassificationofPUelastomersSynthesisandCharacterizationofPUelastomersApplicationofofPUelastomersQuestionsanddiscussions高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005高分子彈性體研討會勤益技術學院/材料與化學工程研究所T
2、imshih/Aug.18,2005WhatisaPolyurethane?Oneofthemostversatilepolymerseverinvented.Itcanbemadeasasoftorrigidfoamorasoftorhardelastomericstrongplastic.Bychangingthechemistryainfiniterangeofmaterialscanbemade.高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005IsocyanatePolyolUrethanegr
3、oupsWhatisaPolyurethane?高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005WhatarePUelastomers?Abroadfamilyofrubber-likecondensationpolymersgenerallycomposedof:AhighmolecularweighthydroxylterminatedpolyolAlowmolecularweightdiolordiaminechainextenderorcurativeApolyisocyanateCatalys
4、ts,additives,etc.高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005PU樹脂由於具有不相容的軟段(SoftSegment)及硬段(HardSegment),產生相分離,導致硬段在PU結構中呈現類似海島的結晶相,使PU在室溫下有物理交聯(即假性交聯)的現象,因此PU分子量雖僅有數萬,但由於相分離所產生的物理交聯,使得其機械性質十分優異。WhatarePUelastomers?高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005UniqueofPUelas
5、tomersHardnessofPUelastomersfromshore000toshoreD-80PUelastomers高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005Flexible/RigidFoamSlabstockLaminatedMoldedRIMSprayElastomersTPUCastRIMSprayFiberMillableACSAdhesiveCoatingHotMeltSealantUrethane/UreaChemical高分子彈性體研討會勤益技術學院/材料與化學工程研究所
6、Timshih/Aug.18,2005ThedefinitionofPUelastomersThermoplasticpolyurethanes---Availableasgranulesorpelletssuitableforconventionalthermoplasticprocessingsuchasextrusion,calendaringorinjectionmoulding.Castelastomers---Madebylow-pressuremixingandcastingtheliquidcomponentsintoamoul
7、dtoformasolidarticlewithtypicalapplicationsbeinghighperformanceindustrialwheels,seals,rolls…etc.RIMelastomers---Producedbyhigh-pressuremixingandinjectionintoaclosedmouldwithtypicalapplicationsasautomotivebumperfascias,bodypanelsplusbodycomponentsforavarietyofothervehicles.Th
8、edefinitionofPUelastomers高分子彈性體研討會勤益技術學院/材料與化學工程研究所Timshih/Aug.18,2005Spray