RTV表面紫外光接枝HEMA的研究  

Study on potografting of HEMA onto RTV film by UV radiation

作　　者：孙义明[1] 李欢[1] 黎曼[1] 彭丹[1] 寇志敏[1] 

机构地区：[1]湖北工业大学化学与环境工程学院,湖北武汉430068

出　　处：《弹性体》2010年第2期6-9,20,共5页China Elastomerics

基　　金：武汉市2007科技局专项资助项目(武科计[2007]32号;项目编号200710321094)

摘　　要：采用液相紫外光接枝方法,研究了室温硫化型硅橡胶与甲基丙烯酸β羟乙酯的接枝反应。利用红外光谱、扫描电镜对接枝物进行了表征,并讨论了引发剂用量、辐照时间对接枝率和接触角的影响,以及不同接枝率下接枝膜的吸水性能。结果表明:引发剂质量分数为为0.25%,辐照时间为2 min时,接枝效果较好;接枝后硅橡胶的亲水性得到明显改善。The graft polymerization of hydroxyethylmethacryate（HEMA） on room temperature vulcanizing silicone rubber（RTV） by UV radiation in liquid phase was carried out.The structure and properties of graft copolymer were studied by FT-IR,SEM and contact angle measurement.And the effects of photoinitiator and radiation time on grafting and contact angle was discussed.And the changing water absorption were studied under different grafting yield.The result showed that the optimum grafting effcet of the graft copolymer was obtain when mass content of photoinitiator is 0.25% and radiation time is 2min.The hydrophilicity of RTV film were improved after being grafted.

关 键 词：室温硫化型硅橡胶 甲基丙烯酸β羟乙酯 紫外光辐照 亲水性 

分 类 号：TQ333.93[化学工程—橡胶工业]