摘要
本实验采用间歇法溶液聚合制备淀粉系接枝丙烯酸的高吸水树脂,通过吸水率来选择最优合成条件。主要探讨了丙烯酸中和度,丙烯酸与淀粉的质量配比,淀粉与水的质量配比,引发剂与丙烯酸的质量配比,接枝共聚时的反应温度。糊化反应温度65℃,糊化反应时间为30min,淀粉与水的质量配比1:12,淀粉与丙烯酸的质量配比1:5,丙烯酸的中和度是68%,引发剂用量为1.0%,接枝共聚反应温度为55℃为合成产物的最佳反应条件。
A high water absorbing resin of starch-g-acrylic acid was prepared by intermittent solution polymerization. The optimal synthetic conditions like neutralization degrees of acrylic acid, the mass ratio of acrylic acid and starch, the mass ratio of starch and water, the mass ratio of initiator and acrylic acid, the reaction temperature of graft-copolymerization were studied by the index of water absorbing. The results show that the water absorbing resin had the best performance when gelatinization temperature is 65 ℃, gelatinization time is 30 min, the mass ratio of starch and water is 1:12, the mass ratio of starch and acrylic acid is 1:5, the neutralization degrees of acrylic acid is 68 %, the content of initiator is 1.0 %, the temperature of graft-copolymerization is 55 ℃.
作者
杨妹
张智达
黄月旺
钟家强
肖方可
Yang Mei;Zhang Zhi-da;Huang Yue-wang;Zhong Jia-qiang;Xiao Fang-ke(School of Management of Northwest University for Nationalitie. Chemical Engineering Institute,Gansu,730300)
出处
《当代化工研究》
2016年第11期86-88,共3页
Modern Chemical Research
基金
国家级大学生创新创业训练计划项目
项目编号:201610742049
关键词
SAP
吸液倍率
研究
SAP resin
Liquid absorbency rate
Study
