含丙烯酰基和季铵盐基的水溶性rn 感光酚醛树脂的性能研究

摘要

在给定的试验条件下，通过对凝胶生成率测定，系统地研究了紫外光引发剂安息香乙醚(BE)、2，2-二乙氧基苯乙酮(DEAP)、2-丙基硫杂蒽酮(ITX)、空气中的氧和胺增效剂乙基-4(二甲基-氨基)苯甲酸酯(EDAB)及硅胶对含丙烯酰基和季铵盐基酚醛树脂(PreP)感光性能的影响，考察了不同引发剂与Prep构成的感光体系的稳定性；测定了Prep的溶解性和耐热性。结果表明：光引发剂ITX的引发效率最高，稳定性也好；氧对Prep与交联型稀释性单体的感光交联反应有阻聚作用；EDAB能抑制氧的阻聚作用；添加剂硅胶能提高Prep的抗湿性，改善其表面黏性；Prep能溶于水、无水乙醇以及无水乙醇与苯的混合溶液，在180℃下受热1 h有57％的季铵盐分解。%The influence of photoinitiators, oxygen, amine accelerator, filler on photosensitive properties of both acryloyl and quaternary ammonium salt groups- containing phenolic resin as well as solubility, heat resisting property were studied. The results showed that oxygen exhibit inhibition for photocrosslinking reaction. Amine accelerator could effectively reduce the inhibition. Silica gel had moisture resistant property.The perpolymer was soluble in water, alcohol and decomposed partly by heat.