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1、含硫交聯(lián)劑水性聚氨酯的制備及其性能姚機艷林強袁愛寧黃毅萍*許戈文鮑俊杰程芹（安徽大學(xué)化學(xué)化工學(xué)院安徽省綠色高分子重點實驗室安徽合肥230601）摘要：以巰基乙醇和1,3,5-三丙烯酰基六氫-1,3,5-三嗪（TAT）為原料，合成一種含硫三官能度的交聯(lián)劑S-TAT，將其與三羥甲基丙烷（TMP）反應(yīng)，合成了水性聚氨酯。利用衰減全反射紅外(ATR-FTIR)、熱重分析、X射線衍射和電子拉力機分別對水性聚氨酯膠膜結(jié)構(gòu)、熱性能和力學(xué)性能進行了表征，進一步探討了S-TAT含量對聚氨酯性能的影響。結(jié)果表明，隨著S-TAT含量的增大，膠膜的結(jié)晶度和軟段的玻璃化溫度均先增加后
2、降低，膠膜在水中的吸液率先降低后升高，膠膜的拉伸強度、斷裂伸長率和彈性模量均增加；當(dāng)n(S-TAT):n(TMP)=3:2時，膠膜WPU4的結(jié)晶度增加到24.91%，軟段的玻璃化溫度增加到-36.36℃，在水中的吸液率降低到7.34%；當(dāng)n(S-TAT):n(TMP)=5:0時，膠膜WPU6的拉伸強度為19.8MPa，斷裂伸長率為399%，彈性模量為39.8MPa。關(guān)鍵詞：1,3,5-三丙烯?；鶜?1,3,5-三嗪；含硫交聯(lián)劑；陰離子水性聚氨酯StudyofWaterbornePolyurethanewithVulcanizedCrosslinkingYA
3、OJi-yan,LINQiang,YUANAi-ning,HUANGYi-ping*,XUGe-wen,BAOJun-jie,CHENGQin(SchoolofChemistryandChemicalEngineeringofAnhuiUniversity,AnhuiProvinceKeyLaboratoryofEnvironment-friendlyPolymerMaterials,HefeiAnhui,230601）Abstract：1,3,5-triacryloylhexahydro-1,3,5-triazine(TAT)andmercaptoetha
4、nolwereusedtosynthesizeakindofsulfur-containingtrifunctionalcrosslinkerS-TATwhichwillparticipateinareactionofpolyurethanesystemwithtrimethylolpropane(TMP)together.Thepurposewastogetwaterbornepolyurethane.Thestructure,thermalpropertiesandmechanicalpropertiesoftheaqueouspolyurethanef
5、ilmswerecharacterizedbyattenuatedtotalreflectioninfrared(ATR-FTIR),thermogravimetricanalysis,X-raydiffractionandelectronictensilemachines.TheeffectsofS-TATcontentonthepropertiesofpolyurethaneinfluences.Theresultsshowedthatthecrystallinityofthefilmandtheglasstransitiontemperatureoft
6、hesoftsegmentincreaseandthendecrease,thesuctionrateofthefilminwaterdecreasedfirstandthenincreased.Thetensilestrength,elongationatbreakandelasticmodulusincreasewiththecontentofS-TATtoTMPratio.Whenn(S-TAT):n(TMP)=3:2,thecrystallinityofthefilmWPU4was24.91%,theglasstransitiontemperatur
7、eofthesoftsegmentwas-36.36℃,thewaterabsorptioninthewaterreducedto7.34%;Whenn(S-TAT):n(TMP)=5:0,thetensilestrengthofthefilmWPU6was19.8MPa,theelongationatbreakof399%,andtheelasticitymodulusincreasedto39.8MPa.Keywords:1,3,5-triacryloylhexahydro-1,3,5-triazine；VulcanizedCrosslinking；An
8、ionicWaterbornePolyurethan
