喷雾干燥制备吸水树脂的研究  

Study on preparation of water absorbent resin by spray drying

作　　者：祝纶宇[1] 伊卓[1] 刘希[1] 杨金彪 ZHU Lun-yu;YI Zhuo;LIU Xi;YANG Jin-biao(Sinopec(Beijing)Chemical Research Institute Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《精细与专用化学品》2023年第4期5-9,共5页Fine and Specialty Chemicals

基　　金：中国石化重点研发项目(420105)。

摘　　要：以喷雾干燥制备为主要工艺手段,探究单体浓度、中和度、引发剂、交联剂以及反应温度对吸水树脂产品性能的影响,主要考察对去离子水及生理盐水的吸收倍率,确定了丙烯酸单体占反应体系质量65%,中和度70%,引发剂过硫酸钾占反应体系质量0.45%,内交联剂N,N-亚甲基双丙烯酰胺占反应体系质量0.035%,反应温度140℃的最佳工艺参数,去离子水吸水倍率到达713g/g,生理盐水吸水倍率达到35g/g。Taking spray drying preparation as the main process method,the effects of monomer concentration,neutralization degree,initiator,crosslinking agent and reaction temperature on the performance of water-absorbent resin products were explored,and the absorption rate of deionized water and normal saline was mainly investigated.The optimal process parameters were:Based on the mass of total reaction system,the concentration of monomer acrylic acid was 65%,the degree of neutralization was 70%,the concentration of initiator potassium persulfate was 0.45%,the concentration of internal crosslinking agent N,N-methylenebisacrylamide was 0.035%,and the reaction temperature was 140℃,the index parameters can reach the deionized water absorption rate of 713g/g,and the physiological saline water absorption rate of 35g/g.

关 键 词：喷雾干燥 吸水树脂 工艺优化 

分 类 号：TE9[石油与天然气工程—石油机械设备]