黄原胶/膨润土/P(AA-co-AMPS)复合高吸水树脂的合成与性能  

PREPARATION AND CHARACTERIZATION OF XANTHAN GUM-g-P(AA-co-AMPS)/BENTONITE COMPOSITE SUPERABSORBENT RESIN

作　　者：李仲谨[1,2] 李宜洋[2] 王西锋[2] 赵钤妃[2] 

机构地区：[1]西京学院,陕西西安710123 [2]陕西科技大学,陕西西安710021

出　　处：《精细石油化工》2012年第2期70-73,共4页Speciality Petrochemicals

基　　金：陕西省科技计划项目(2008K06-15);"十一五"国家科学技术支撑计划项目(2006BAD09B04)

摘　　要：实验以黄原胶(XG)为改性基体材料,丙烯酸(AA)和2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为接枝单体,并添加膨润土黏土,采用水溶液聚合法合成了黄原胶/膨润土/P(AA-co-AMPS)/复合高吸水性树脂,采用单因素实验考察了影响树脂性能的各种因素。较佳工艺条件为:w(膨润土)=15%,m(AMPS)=1.7g,w(引发剂)=0.8%,w(交联剂)=0.045%,聚合温度70℃,树脂最大吸水倍数数为873.4g/g,最大吸盐水倍数达108.9g/g。分析表明黄原胶、AA、AMPS和膨润土之间可能发生了交联共聚反应,膨润土的加入使复合树脂的热稳定性增加。With xanthan gum（XG） as the modifing material,2-acrylamido-2-methylpropanesulfonic acid（AMPS） and acrylic acid（AA） as monomers,adding bentonite,XG-g-P（AA-co-AMPS）/Bentonite composite superabsorbent resin was prepared through solution polymerization.The effects on composite superabsorbent were studied by single factor test.The results showed that the optimum conditions were： mass fractions of bentonite,APS and cross linker being 15%,0.8% and 0.004 5%,respectively,1.7 g AMPS,and reaction temperature 70 ℃.Under the above conditions,the water and 0.9% NaCl solution absorption was up to 873.4 g/g and 108.9 g/g,respectively.IR and XRD indicated that the graft copolymerization between XG-g-P（AA-co-AMPS） and bentonite was generated.TGA indicated that with the addition of bentonite,the thermal stability of the composite superabsorbent was increased.

关 键 词：黄原胶 丙烯酸 2-丙烯酰胺基-2-甲基丙磺酸 膨润土 高吸水树脂 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]