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涂料工业  2012 

巯基/烯丙基/环氧水性杂化涂料的制备与性能

Keywords: raft乳液聚合,杂化,巯基点击反应,水性涂料

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Abstract:

?采用可逆加成-断裂链转移自由基(raft)乳液聚合方法,制得聚甲基丙烯酸烯丙酯(p-ama)和聚甲基丙烯酸缩水甘油酯(p-gma)raft乳液,并将2种乳液按比例与巯基封端的聚氨酯水分散体(pu-sh)混合成膜,得到具有最佳涂膜性能的杂化涂料配方。采用傅里叶变换红外光谱仪(ft-ir)对乳液及涂膜的结构进行表征,用差示扫描量热仪(dsc)等仪器对涂膜的性能进行研究,结果表明:水性杂化体系中的巯基与烯丙基在紫外光照的条件下发生巯基-烯丙基点击反应,与环氧基在受热的条件下发生了环氧开环反应。杂化涂料在经光/热双重固化后涂膜的吸水率为30%、凝胶量为99%、耐溶剂(丁酮)擦试为330次、铅笔硬度为5h、耐冲击性为50cm。

References

[1]  wanyedc,feichen,derekwp,etal.thermalpolymerizationofthiol-enenetworkformingsystems[j].polymerinternational,2007,56:1572-1579.
[2]  lumelskyy,zoldanj.porouspolycaprolactone-polystyrenesemi-interpenetratingpolymernetworkssynthesizedwithinhighinternalphaseemulsions[j].macromolecules,2008,41(4):1469-1474.
[3]  jacquelynac,jeffreyws,bowmancn.evaluationandcontrolofthiol-ene/thiol-epoxyhybridnetworks[j].polymer,2007,48:1526-1532.
[4]  macros,monicac,giovannac,etal.preparationandcharacterizationofhybridthiol-ene/epoxyuv-thermaldual-curedsystems[j].polymerinternational,2010,59:1046-1051.
[5]  alysehm,loweab.combiningraftradicalpolymerizationandclick/highlyefficientcouplingchemistries:apowerfulstrategyforthepreparationofnovelmaterials[j].macromolecularrapidcommunications,2011,32:779-800.
[6]  hoylece,bowmancn.thiol-eneclickchemistry[j].angewandtechemieinternationaledition,2010,49:1540-1573.
[7]  schrekkm,leungd,bowmancn.hybridorganic/inorganicthiol-enebasedphotopolymerizednetworks[j].macromolecules,2011,44(19):7520-7529.
[8]  sangermanom,maluecllig,priolaa,etal.synthesisandcharacterizationofacrylate-oxetaneinterpenetratingpolymernetworksthroughathermal-uvdualcureprocess[j].progressinorganiccoatings,2006,55:225-230.
[9]  ricardoao,berthaapuenteurbina,ramirogs,etal.developmentofhybridpolymericmaterialsbasedonthiol-ene/cationicformulations[j].macromoleculesmaterialandengineering.2008,293:731-739.
[10]  tadatomin,atsushik,koutarok,etal.novelthermalcuringreactionofepoxyresinandpoly(glycidylmethacrylate)usingphoto-generateddifunctionalthiols[j].polymerjournal,1996,28(9):795-800.

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