论文部分内容阅读
以聚氨酯丙烯酸酯(PUA)为基体、甲基丙烯酸-β-羟乙酯(HEMA)为活性稀释剂、异丙苯过氧化氢(CHP)为引发剂、N,N′-二甲基苯胺为促进剂、糖精为助促进剂、二苯甲酮(BP)/叔胺为光引发剂和对苯二酚为稳定剂,采用双引发体系和双固化[UV(紫外光)、厌氧固化]体系制备PUA基UV厌氧胶。通过单因素试验法优选出制备UV厌氧胶的最佳工艺条件。结果表明:当w(HEMA)=20%、w(CHP)=2%、w(光引发剂)=3.0%、w(N,N′-二甲基苯胺)=w(糖精)=0.8%和w(对苯二酚)=0.06%时,UV厌氧胶的综合性能良好,其光固化定位时间为8 s、剪切强度超过5 MPa。
Polyurethane acrylate (PUA) as matrix, β-hydroxyethyl methacrylate (HEMA) as reactive diluent, cumene hydroperoxide (CHP) as initiator and N, Accelerators and saccharin as accelerators, benzophenone (BP) / tertiary amine as photoinitiators and hydroquinone as stabilizers, using double initiator system and dual curing [UV (UV), anaerobic curing] System Preparation PUA-based UV anaerobic adhesive. The optimal process conditions for preparing UV anaerobic adhesives were optimized by single factor test. The results showed that w (N, N’-dimethylaniline) = w (saccharin) = 0.8% when w (HEMA) = 20%, w (CHP) = 2% And w (hydroquinone) = 0.06%, the comprehensive performance of UV anaerobic adhesive is good, the curing time is 8 s and the shear strength is more than 5 MPa.