一种可深层UV固化的低收缩率树脂研究  

Study on a Deep UV-curing Resin with Low Shrinkage Rate

作　　者：魏善智 张斌[1,2] WEI Shan-zhi;ZHANG Bin(Instssitute of Petrochemistry,Heilortgiang A cademy of Sciences, Harbin 150040, China;Harbin Engeering University, Harbin 150009, China)

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]哈尔滨工程大学,黑龙江哈尔滨150009

出　　处：《化学与粘合》2019年第2期83-86,共4页Chemistry and Adhesion

摘　　要：合成了一种UV固化环氧丙烯酸树脂TTA,其分子中同时含有环氧基团和双键基团,可满足低收缩性深层阳离子-自由基混合UV固化,固化深度可达到30mm以上,收缩率仅为0.19%。进一步采用自由基树脂(1271)与TTA配合,在快速进行低收缩率深层UV固化同时,可以实现较高的固化程度,树脂固化物热稳定性较好。A UV-curing epoxy acrylate resin(TTA)is synthesized which contains both cationic photopolymerizable epoxy groups and free radical photopolymerizable double bonds. The resin can undergo cationic-radical hybrid UV curing quickly with a deep curing depth and low shrinkage rate.The curing depth can reach more than 30 mm, and the shrinkage rate is only 0.19%. When the free radicals resin(1271)is mixed with TTA, the UVcuring samples not only can undergo UV curing quickly with a deep curing depth and low shrinkage rate, but also can achieve a higher curing degree,and a better thermal stability.

关 键 词：环氧丙烯酸树脂 紫外光固化 固化深度 收缩率 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]