P(AA-AM)/MMT吸水性复合材料的制备与性能  

Preparation and Properties of P(AA-AM)/MMT Superabsorbent Composite

作　　者：刘翠云[1] 刘红宇[1] 罗洁[1] 张玉清[1] 

机构地区：[1]河南科技大学高分子科学与纳米技术重点实验室,河南洛阳471003

出　　处：《塑料科技》2011年第4期60-63,共4页Plastics Science and Technology

摘　　要：采用过硫酸铵-亚硫酸钠引发体系,通过反相悬浮聚合法制备了(聚丙烯酸盐-丙烯酰胺)/蒙脱土(P(AA-AM)/MMT)吸水性复合材料,研究了材料合成中丙烯酰(胺AM含)量、交联剂用量、MMT添加量等因素对复合材料吸水性能的影响,利用DSC及TG对材料的热性能进行了分析。结果表明:产品后处理容易,最佳条件下制备的材料在去离子水中的吸水率为498g/g,在0.9%盐水中的吸水率为98g/g,具有较好的热稳定性与保水性能。Poly （acrylate-acrylamide）/montmorillonite （MMT） superabsorbent composite was prepared by inverse suspension polymerization using ammonium sulphate-sodium sulfite as initiator. The key factors of influence on the absorbency of composite including the amount of acrylamide, crosslinking agent, montmorillonite and initiator were investigated. The thermal property of the composite was analyzed by DSC and TG. The results show that the further treatment of the product is easy, and the absorbency for water of the composite prepared at the best condition is about 498 g/g in distilled water and 98 g/g in 0.9%NaCl solution respectively. The product has a satisfied thermal stability and water retention.

关 键 词：聚(丙烯酸盐-丙烯酰胺) 反相悬浮聚合 吸水性 蒙脱土 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]