膨润土/聚丙烯酸高吸水材料制备及改性  

Synthesis and Modification of Bentonite/Polyacrylic Acid Composite with High Water Absorbency

作　　者：魏月琳[1] 吴季怀[1] 黄昀[1] 钟金凤[1] 

机构地区：[1]华侨大学材料科学与工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2005年第4期365-368,共4页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(59772034);福建省重大科研基金资助项目(2002H002);华侨大学科研基金资助项目(03HZR03)

摘　　要：采用高温快速的水溶液聚合方法,合成膨润土/聚丙烯酸高吸水性复合材料.探讨复合材料制备过程中各种因素,如交联剂用量和膨润土超细粉用量等对复合材料吸水倍数的影响.文中还对复合材料进行表面交联改性.结果表明,改性有利于提高复合材料的吸水倍数和吸水速率.The present work deals with the composite of bentonite/polyacrylic acid, a superior water absorbent. The composite was synthesized by adopting the method of polymerization in aqueous solution at high temperature and at high speed. Moreover, the authors inquire into the effects of various factors on the water absorbency of this composite. These factors include amount of crosslinking agent, amount of ultrafine bentonite powder. Surface crosslinking modification of the composite has also been used to improve its water absorbency both in amount and speed, as indicated by the results.

关 键 词：高吸水性材料 丙烯酸 表面改性 膨润土 

分 类 号：TQ317[化学工程—高聚物工业] TB324[一般工业技术—材料科学与工程]