聚(丙烯酸-丙烯酰胺)/高岭土复合吸水树脂的制备及其吸水性能  

Preparation of poly(acrylic acid-co-acrylamide)/kaolin superabsorbent composite and its absorption

作　　者：唐尧基[1] 寇小燕[1] 林真真[1] 朱林晖[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266590

出　　处：《中国科技论文》2013年第6期553-556,共4页China Sciencepaper

基　　金：高等学校博士学科点专项科研基金资助项目(20113718120006)

摘　　要：以过硫酸铵(APS)为引发剂,N,N-亚甲基双丙烯酰胺(MBA)为交联剂,在不通氮气的条件下,采用溶液插层聚合法制备了聚(丙烯酸-丙烯酰胺)/高岭土(P(AA-co-AM)/KL)复合高吸水性树脂。通过傅里叶变换红外光谱(FT-IR)对P(AA-co-AM)/KL的结构进行了表征,研究了单体质量比、引发剂用量、交联剂用量以及高岭土用量对树脂吸水率的影响。结果表明当mAA/mAM=2/3,mAPS/(mAA+mAM)=1.62%,mMBA/(mAA+mAM)=0.13%,mKL/(mAA+mAM)=10%时,树脂吸水率最高,为632g/g。该条件下制备的树脂具有良好的保水性能。A poly（acrylic acid-co-acrylamide）/kaolin superabsorbent composite has been synthesized without the purge of nitrogen by so- lution intercalation polymerization of acrylic acid （AA）, acrylamide （AM） and kaolin （KL）, using ammonium persulfate （APS） as an ini- tiator and N, N＇-methylenebisacrylamide （MBA） as a cross linker. The composite was characterized by Fourier transform infrared spec- troscopy （FT-IR）. Effect of reaction conditions, including the mass ratio of AA to AM, the amounts of initiator, cross linker and kaolin, on water absorbency was investigated. The results indicated that under the condition of mAA/mAM=2/3,mAPS/（mAA＋mAM）=1.62%,mMBA/（mAA＋mAM）=0.13%,mKL/（mAA＋mAM）=10% water absorbency of P（AA-co-AM）/KL superabsorbent composite could reach a maximum of 632 g/g. The composite showed good water retention properties.

关 键 词：丙烯酸 丙烯酰胺 高岭土 高吸水性树脂 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]