摘要
合成了有机硅改性水性光敏聚氨酯,考察了甲基丙烯酸羟乙酯(HEMA)和环氧丙烯酸酯(EA) 这两种光交联单体对固化膜的耐水性能和硬度等方面的影响;考察了有机硅改性对固化膜耐水性的影响.固化膜红外谱图表明:有大量的氨酯键生成,EA已参与到反应中去,有机硅也接到分子链上; 硬度测试结果表明:采用EA作为光交联单体时,固化膜的硬度较HEMA作光交联单体时有明显的提高(HEMA作交联单体时固化膜硬度(H,而采用EA时则可高达3H).耐水性测试表明有机硅的改性可以大大提高固化膜的耐水性能.
Polymers of UV - curable aqueous polyurethane modified by organ - silicone were synthesized. The effects of hydroxyethyl methacrylate （HEMA）, epoxy acrylate（EA） and organic silicone on water resistance and hardness were discussed. Results have shown that： comparied with HEMA, EA can do a better job in water-resistance and hardness of the film; also, the film modified by organic silicone displayed much better water-resistance than the film without organic silicone.
出处
《华南师范大学学报（自然科学版）》
CAS
2005年第3期17-22,共6页
Journal of South China Normal University(Natural Science Edition)
关键词
有机硅
水性
光敏
聚氨酯
合成
性能
UV - curable
Aqueous Polyurethane
Organic silicone
Properties
