溶胶-凝胶法制备光固化聚氨酯丙烯酸酯杂化材料的研究

Study on UV-curable Polyurethane-acrylate Hybrid Materials Prepared by Sol-gel Process

摘要: 以溶胶-凝肢法制备的硅溶胶为无机相，聚氨酯丙烯酸酯为有机相，以γ-甲基丙烽酰氧丙基三甲氧基硅烷(TMSPM)为两相间的偶联剂，制得了光固化杂化材料。研究了未固化的杂化体系的稳定性问题，并对其进行了结构表征和性能研究。无机相与有机相通过共价键相连。使得杂化体系光固化膜高硬度的获得并没有以柔韧性的损失为代价。在无机物含量较低时，聚氨酯丙烯酸酯／二氧化硅杂化体系先固化膜的耐磨性略有提高。

Abstract: UV curable hybrid material was prepared by the sol-gel process which consists of an aliphatic urethane acrylate oligomeric resin and a silica sol with 3-trimethoxysilyl-propyl methacrylate (TMSPM) as a coupling agent between the organic and inorganic phas