黄原胶／膨润土复合高吸水性树脂的制备与性能研究  

Study on preparation and properties of xanthan gum/bentonite composite superabsorbent polymer

作　　者：李宜洋[1] 苏秀霞[1] 李仲谨[1] 李铭杰[1] 

机构地区：[1]陕西科技大学化学与化工学院,教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《中国胶粘剂》2011年第9期9-13,共5页China Adhesives

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);陕西科技大学研究生创新基金资助项目(SUST-B)

摘　　要：采用水溶液聚合法制备了黄原胶(XG)/膨润土有机-无机复合SAP(高吸水性树脂)。通过单因素试验法和正交试验法优选出制备复合SAP的最佳工艺条件。结果表明:丙烯酸(AA)、丙烯酰胺(AM)、XG与膨润土之间发生了接枝共聚反应;当m(AA)∶m(AM)=5∶1、AA中和度为75%、w(膨润土)=5%、w(引发剂)=1.0%和w(交联剂)=0.08%时,相应的复合SAP具有最大的吸水倍率(863.8 g/g)和吸盐水倍率(109.4 g/g)。An organic-inorganic composite SAP（superabsorbent polymer） based on XG（xanthan gum） and bentonite was prepared by water-solution polymerization. The optimal process conditions of preparing composite SAP were preferred by the single factor experiment and orthogonal experiment methods. The results showed that the graft eopolymerization among acrylic aeid（AA）,acrylamide（AM）,XG and bentonite was generated. The relevant composite SAP had maximal water absorption（863.8 g/g） and salt-water absorption（109.4 g/g） when mass ratio of m（AA）：m（AM） was 5：l,AA＇s neutralization degree was 75%,mass fractions of bentonite,initiator and cross linker were 5%, 1.0% and 0.08% respectively.

关 键 词：黄原胶 膨润土 高吸水性树脂 

分 类 号：TQ432.2[化学工程] TQ433.52