CMC/CMS-Na双基体高吸水树脂的制备及优化  

Study on Preparation and Properties of CMC/CMS-Na Double Matrix Super-absorbent Polymers

作　　者：王林杉 王家盛 陈学习[1] 赵汗青 WANG Lin-shan;WANG Jia-sheng(Hebei Key Laboratory of Hazardous Chemicals Safety and Control Technology,North China Institute of Science and Technology,Langfang Hebei 065201,China)

机构地区：[1]华北科技学院,河北廊坊065201 [2]河北省危险化学品安全与控制技术重点实验室,河北廊坊065201

出　　处：《当代化工》2023年第5期1093-1098,共6页Contemporary Chemical Industry

基　　金：河北省自然科学基金(项目编号:E2019508214);河北省高等学校科学研究项目(项目编号:ZD2019307);中央高校基本科研业务费资助(项目编号:3142019013)。

摘　　要：采用水溶液聚合法,以羧甲基纤维素钠和羧甲基淀粉钠为骨架,添加丙烯酸为接枝单体,过硫酸钾(过硫酸铵)为引发剂,N,N’-亚甲基双丙烯酰胺为交联剂,合成了CMC/CMS-Na双基体高吸水性树脂。通过实验研究了该树脂最佳制备条件,此时树脂的吸盐水倍率为125.16%,吸去离子水倍率为1635.91%;重复吸水5次后,该树脂的吸盐水率为76.41%,吸去离子水率为82.48%。本研究制得的高吸水树脂生产成本低、重复吸液后仍能保持较好的吸液能力,具有实际应用价值。Using sodium carboxymethyl cellulose and sodium carboxymethyl starch as the framework materials,acrylic acid as the monomer,potassium persulfate(ammonium persulfate)as the initiator,N,N'-methylenebiacrylamide as the crosslinking agent,CMC/CMS-Na double matrix super-absorbent polymers was synthesized by aqueous solution polymerization.The optimal preparation conditions of the polymers were studied experimentally,and the brine absorption rate of the polymers at this time was 851.603%,and the absorption rate of the deionized water was 1935.91%,and after repeated liquid absorption 5 times,the saline absorption rate of the resin was 76.41%,and the deionized water absorbtion rate was 82.48%.The hyperabsorbent resin produced in this study has low production cost and can maintain good liquid absorption after repeated absorption,which has practical application value.

关 键 词：羧甲基纤维素 高吸水树脂 高分子材料 吸液倍率 

分 类 号：O636.1[理学—高分子化学]