淀粉接枝丙烯酸高吸水树脂的制备  

Preparation of super absorbent polymer by graft copolymerization of acrylic acid onto starch

作　　者：郭焕[1] 刘国军[1] 刘素花[1] 荣光[1] 王玉标[1] 宫嘉琳 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2013年第4期293-296,共4页Journal of Dalian Polytechnic University

摘　　要：采用间歇法制备淀粉接枝丙烯酸的高吸水树脂,用光学显微镜对共聚物结构进行了表征,探讨了反应温度、糊化时间、淀粉与丙烯酸的质量配比、中和度等反应条件对吸水率、吸盐水率的影响。反应温度为75℃、淀粉的糊化时间为40min、淀粉与丙烯酸质量比为1∶3、中和度为80%时树脂的吸水率最高。通过光学显微镜观察,共聚物表面为松针状结构时吸水性最好。Super absorbent polymer was prepared by graft copolymerization of acrylic acid onto starch. The structure of the copolymers was characterized by optical microscope analysis. Influence of temperature, gelatinous time, the ratio of starch and acrylic acid, and the neutralized degree on absorbing water ratio and absorbing salt water ratio was discussed. The absorbing water ratio of resin is the highest when the temperature is 75 ℃, the gelatinous time is 40 min, the ratio of starch and acrylic acid is 1 ： 3, the degree of neutralization is 80%. The absorption liquid ratio is the best when the surface structure is pine needle shape.

关 键 词：高吸水树脂 氧化淀粉 丙烯酸 接枝聚合 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]