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1、含硫交联剂水性聚氨酯的制备及其性能姚机艳林强袁爱宁黄毅萍*许戈文鲍俊杰程芹（安徽大学化学化工学院安徽省绿色高分子重点实验室安徽合肥230601）摘要：以巯基乙醇和1,3,5-三丙烯酰基六氢-1,3,5-三嗪（TAT）为原料，合成一种含硫三官能度的交联剂S-TAT，将其与三羟甲基丙烷（TMP）反应，合成了水性聚氨酯。利用衰减全反射红外(ATR-FTIR)、热重分析、X射线衍射和电子拉力机分别对水性聚氨酯胶膜结构、热性能和力学性能进行了表征，进一步探讨了S-TAT含量对聚氨酯性能的影响。结果表明，随着S-TAT含量的增大，胶膜的结晶度和软段的玻璃化温度均先增加后
2、降低，胶膜在水中的吸液率先降低后升高，胶膜的拉伸强度、断裂伸长率和弹性模量均增加；当n(S-TAT):n(TMP)=3:2时，胶膜WPU4的结晶度增加到24.91%，软段的玻璃化温度增加到-36.36℃，在水中的吸液率降低到7.34%；当n(S-TAT):n(TMP)=5:0时，胶膜WPU6的拉伸强度为19.8MPa，断裂伸长率为399%，弹性模量为39.8MPa。关键词：1,3,5-三丙烯酰基六氢-1,3,5-三嗪；含硫交联剂；阴离子水性聚氨酯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
