摘要
分别通过GMA（甲基丙烯酸缩水甘油酯）改性端羧基聚酯获得软化点是90~95℃的低熔融黏度不饱和聚酯丙烯酸酯树酯,（甲基）丙烯酸改性环氧树脂获得软化点是80~90℃的低熔融黏度不饱和环氧丙烯酸树脂,与熔程为104~108℃的半结晶型不饱和固相聚氨酯预聚物组成光固化粉末涂料主体树脂,制备出室温贮存稳定的在120~140℃熔融时具有高流平性的光固化粉末涂料。
The carboxyl terminated polyester is modified by glycidyl methacrylate to obtain a low melt viscosity unsaturated polyester acrylate resin with softening point at 90～95 ℃ and the low melt viscosity unsaturated epoxy acrylic resin with softening point at 80～90 ℃ is achieved by adopting （meth） acrylic acid modifying epoxy resin. Including the above two kinds of modified resins, semi-crystalline unsaturated solid polyurethane pre-polymer with melting range 104～ 108 ℃ is used as the main resin for UV curing powder coatings. The prepared coatings have good storage stability under room temperature.
出处
《中国涂料》
CAS
2015年第10期33-37,共5页
China Coatings
关键词
聚酯
环氧树脂
改性
聚氨酯预聚物
软化点
低温流平
polyester
epoxy resin
modification
polyurethane prepolymer softening point
leveling property at low ternperature
