UV聚合自交联聚丙烯酸吸水树脂的制备及表征  

UV polymerization and characterization of self-crosslinking polyacrylic acid superabsorbent

作　　者：买买提江.依米提 艾买提江.萨伍提 司马义.努尔拉 师庆东[2] 徐婉婷[2] 

机构地区：[1]新疆大学化学化工学院石油天然气精细化工教育部和自治区重点实验室,乌鲁木齐830046 [2]新疆大学资源与环境科学学院新疆绿洲生态重点实验室,乌鲁木齐830046

出　　处：《功能材料》2016年第4期182-186,共5页Journal of Functional Materials

基　　金：国家科技支撑计划资助项目(2014BAC15B01);新疆高校科研重点资助项目(XJEDU2012I06)

摘　　要：以丙烯酸为原料,使用紫外光引发聚合制备了自交联聚丙烯酸吸水树脂（PAAsc）.采用IR、1HNMR、SEM 等方法对树脂的结构进行表征.研究不同功率的紫外光源、辐照距离及反应温度对该树脂吸液率的影响.结果表明,紫外灯功率为1000W、聚合温度在15℃、光辐照时间为40min、辐照距离为15cm 时,所制备吸水树脂的吸液率最佳,吸去离子水率为4391g/g,吸盐水率为206g/g.同时,在加压条件下进行了不同保水剂吸液率的比较.A self-crosslinking polyacrylic acid superabsorbent was prepared with acrylic acid as raw materials by UV polymerization.The samples were further characterized by means of FT-IR,~1H NMR and SEM.The effects of preparation conditions such as power of ultraviolet light source,irradiation distance and the polymerization temperature on the absorbency were evaluated.The results show that:power the UV lamp was 1 000 W,the polymerization temperature was 15 ℃,the light irradiation time was 40 min,and irradiation distance is15 cm.Results show that absorbencies of the resin which is polymerized under the optimum condition are as follows:the deionized water absorbency was 4 391g/g,the saline water(m(NaCl)=0.9%)absorbency was206g/g.Meanwhile,absorbency under load of the resin was compared with other different absorbing resins.

关 键 词：高吸水性树脂 紫外光聚合 丙烯酸 加压吸液率 

分 类 号：TQ57[化学工程—精细化工] TQ323.1