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1、梳型紫外光快速固化聚氨酯的制备及涂层性能朱亚丽,董运生,陈丽杰,姚有为,洪阳阳,唐国翌*(清华大学深圳研究生院能源与环境学部,广东深圳518055)摘要:以1,3-丙二醇、甲基丙烯酸缩水甘油酯为主要原料,无水四氯化锡为催化剂,三氟乙酸为助催化剂,合成了一种具有光化学活性的聚醚(PGMA)。此聚醚以碳氧键为主链,以甲基丙烯酸酯基为梳型侧链,端基为羟基。将上述具有光化学活性的聚醚(PMGA)与异佛尔酮二异氰酸酯(IPDI)反应,制得具有光化学活性的聚氨酯〔Poly(PGMA-IPDI)〕。在上述聚氨酯中加入活性稀释剂和光引发剂,制备出一种能够快速光固化的树脂,固化时间可以达到1s,柔韧性达到
2、0.5mm、附着力为最高级0级,同时固化涂层在盐溶液、水溶液、碱溶液中浸泡无脱落,在酸性水溶液中脱落时间也达到36h请多用数据说话,中英文一并修改已改正,中英文相应数据已补充。,涂层具有优异的性能。关键词:紫外光固化;聚醚;阳离子聚合;聚氨酯树脂中图分类号:TQ314文献标识码:ASynthesisoftheComb-likeRapidUV-curedPolyurethaneandItsFilmPropertiesZHUYali,DONGYunsheng,CHENGLijie,YAOYouwei,HONGYangyang,TANGGuoyi*姓字母全部大写已改正,姓的字母已大写。(Div
3、isionofEnvironment&Energy,GraduateSchoolatShenzhen,TsinghuaUniversity,Shenzhen518055,Guangdong,China)Abstract:Thestudydevelopedanefficientmethodforthesynthesisofanovelphotosensitivepolyetherviacationicring-openingpolymerizationofglycidylmethacrylateusing1,3-propanediolasaprecursor,andtintetrachlo
4、rideandtrifluoroaceticacidascatalysts.Thehydroxyl-terminatedpolyether(PGMA)containscomb-likemethacrylategroupsasitssidechains.Then,newpolyurethaneacrylate(poly(PGMA-IPDI))waspreparedbythereactionofPGMAandisophoronediisocyanate(IPDI).Meanwhile,thetargetedstructureofPGMAandpoly(PGMA-IPDI)wasconfirm
5、edbyFT-IRand1HNMR.TheUV-curablecoatingswerepreparedbytheincorporationofpoly(PGMA-IPDI)oligomersintoformulationstogetherwithreactivediluentsandphotoinitiators,whichexhibitedexcellentpropertiessuchascuringspeed,flexibilityandchemical-solventresistance.Remarkably,theUV-curablecoatingscouldcuredbyexp
6、osuretoultravioletradiationinjustonesecond.Meanwhile,theUV-curablecoatingsnotonlyhavenopeelofffromsheetironwithin48hinsolventresistantexperiments,butalsoremainedunchangefor36hinacidicaqueoussolution.Keywords:UV-cured;polyether;cationicpolymerization;polyurethaneFoundationitem:InternationalCoopera
7、tionResearchProject(GJHZ20150316160614839)基金项目:国际合作研究项目(批准号:GJHZ20150316160614839)作者简介:朱亚丽(1991-),女,硕士生。联系人:唐国翌(1954-),男,请补充出生年份,性别已按照老师要求补充年份、性别。教授,电话:13530478111,E-mail:tanggy@sz.tsinghua.edu.cn。紫外光固化技术兴起于20世纪60年代,与传