高岭土/PAAM复合高吸水性树脂的制备与性能  

Preparation and properties of kaolin/PAAM composite high water-absorbing resin

作　　者：谢建军[1,2] 黄凯[1] 张绘营[1] 何新建[1] 韩心强[1] 李晟[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004 [2]中南林业科技大学流变力学与材料工程研究所,长沙410004

出　　处：《化工新型材料》2010年第7期70-73,共4页New Chemical Materials

基　　金：湖南省自然科学重点基金资助项目(07JJ3109);国家留学回国人员基金项目;湖南省科技厅科技攻关项目(2008GK3092)

摘　　要：采用溶液聚合方法,以丙烯酸(AA)与丙烯酰胺(AM)为单体,N,N’-亚甲基双丙烯酰胺(NMBA)为交联剂,过硫酸钾(KPS)为引发剂以及一定量的高岭土,通过正交实验设计合成了高岭土/聚丙烯酸-丙烯酰胺复合高吸水性树脂(CPAAM),得到了最优配方条件为:单体总浓度35%(质量浓度,下同),丙烯酸中和度60%,引发剂、交联剂浓度分别为0.2%、0.08%(相对于总单体质量),高岭土浓度5%(相对于总单体质量);此时CPAAM在自来水、0.9%NaCl溶液中的吸液倍率分别为221、47g/g;同时考察了其在有机溶液中的吸液性能。Kaolin/poly（acrylic acid-acrylamide） composite high water-absorbing resins（CPAAM） were prepared through orthogonal experimental design by solution polymerization,using acrylic acid（AA） and acrylamide（AM） as monomers,N,N＇-methylene-bis-acrylmide（NMBA） as crosslinker,potassium sulfate（KPS） as initiator and a certain proportion of the kaolin.The best formula was obtained as follow： tall concentration of monomer was 35%（w%,the same as follow）,acrylic acid neutralization 60%,concentrations of initiator and crosslinker were 0.2% and 0.08% respectively（relative to tall monomer mass）,kaolin concentration was 5%（relative to tall monomer mass）.Their absorbencies were studied in tap water and 0.9% NaCl solution,the organic solvent solutions,etc.The results have shown that the absorbencies in tap water and in 0.9% NaCl solution were 221g/g and 47g/g respectively.Moreover,the swelling properties of CPAAM in organic solvent solutions were studied.

关 键 词：复合高吸水性树脂 吸液性能 溶液聚合 丙烯酸 丙烯酰胺 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]