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.
出处
《功能材料》
EI
CAS
CSCD
北大核心
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)
关键词
高吸水性树脂
紫外光聚合
丙烯酸
加压吸液率
superabsorbent
UV polymerization
self-crosslinking polyacrylic acid
absorbency under load
