微米级可降解性高吸水树脂微球的制备工艺

微米级可降解性高吸水树脂微球的制备工艺 Preparation Technology of Biodegradable Superabsorbent Microspheres with Micron-Sized Meter 余响林 YU Xianglin 1 first-author 张碧玉 ZHANG Biyu 1 吴杰辉 WU Jiehui 1 胡甜甜 HU Tiantian 1 秦天 QIN Tian 1 廖海星 LIAO Haixing 2 武汉工程大学化工与制药学院/绿色化工过程教育部重点实验室 武汉工程大学化工与制药学院/绿色化工过程教育部重点实验室 School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology/Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology/Key Laboratory for Green Chemical Process of Ministry of Education 长江大学化学与环境工程学院 长江大学化学与环境工程学院 College of Chemistry and Environmental Engineering,Yangtze University College of Chemistry and Environmental Engineering,Yangtze University 以淀粉与丙烯酸（AA）/丙烯酰胺（AM）为原料,采用接枝共聚的方法,在低油水比的反相悬浮体系中制备微米级可降解高吸水树脂微球,探讨了油水比、中和度、分散剂、引发剂、交联剂对树脂性能的影响.结果表明,对产物的粒径和吸水倍率影响程度由大到小依次为:丙烯酸中和度、油水比、分散剂用量、引发剂用量、交联剂用量.研究得到的最佳工艺条件为:丙烯酸中和度0.7,油水比2.5∶1,分散剂用量0.7g,引发剂用量（占单体总质量）0.3%,交联剂用量（占单体总质量）0.057%;得到产物的粒径约为1.5μm,吸水倍率为290.93g/g. The micron-sized superabsorbent microspheres were prepared by the graft copolymerization of starch and acrylic acid/acrylamide in the inverse suspension system with low oil/water ratio.The effect of oil/water ratio,degree of neutralization,the amount of dispersant,initiator,and crosslinker on the properties of the resin was investigated systematically.The results showed that the order of the influence degree on radius and water absorption rate of the resin from high to low was as follows:neutralization degree of acrylic acid,the oil-water ratio,the amount of dispersant,the amount of initiator,the amount of crosslinker.The optimum technological conditions were as follows:the neutralization degree of acrylic acidis 0.7,the oil-water ratio was 2.5∶1,the dispersant dosage was 0.7g,the initiator dosage was 0.3%（the percentage of the total mass of monomer）and the crosslinker dosage was 0.057%（the percentage of the total mass of monomer）,the product’s water absorbency was 290.93g/g,and particle size was about 1.5μm. 微米级 淀粉 接枝 高吸水树脂 可降解 micron-sized meter starch grafting superabsorbent resin biodegradable 10.14188/j.1671-8836.2015.01.011 TQ324.8 国家自然科学基金（51203127）;湖北省教育厅优秀中青年项目（20121509）;武汉市科技局青年科技晨光计划项目（201050231049）;绿色化工过程省部共建教育部重点实验室开放基金（GCP201003）资助项目 2015-01-01 2021-03-31 1 61