摘要
以[BMIM]PF6离子液体为反应介质,采用两步法,制备聚丙烯酰胺水凝胶颗粒,探讨了CaCl2浓度及缓冲溶液的pH值对水凝胶颗粒吸水性能的影响。结果表明,CaCl2溶液的浓度为3%时,分散所得的水凝胶颗粒数目较多、尺寸均一,吸水性能最好;缓冲溶液的pH值为3.0时,水凝胶颗粒的吸水率最大,并且具有pH敏感性。
The [BMIM]PF6 ionic liquid is used as the reaction medium,the two-step method is used,polyacrylamide hydrogel particles were prepared.The influence of different CaCl2 concentrations and buffer solution pH on the water absorption properties of hydrogel particles were investigated.The results show that when the concentration of CaCl2 solution is 3%,the number of particles obtained by the dispersion is large,the size is uniform,and the water absorption performance is the best;when the pH of the buffer solution is 3.0,the water absorption rate of the hydrogel particles reaches the maximum.The particles prepared in this way have pH sensitivity.
作者
包亮军
张定军
吴彦飞
赵文锦
董莉
杨斌
李欣儒
BAO Liang-jun;ZHANG Ding-jun;WU Yan-fei;ZHAO Wen-jin;DONG Li;YANG Bin;LI Xin-ru(School of Materials&Science,State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China;College of Petroleum Engineering,Xi’an Shiyou University,Xi’an 710065,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第11期2577-2580,2584,共5页
Applied Chemical Industry
基金
国家自然科学基金(51663013)
关键词
离子液体
水凝胶颗粒
吸水率
PH敏感性
ionic liquids
hydrogel particles
water absorption
pH sensitivity
作者简介
包亮军(1995-),男,甘肃天水人,兰州理工大学在读硕士研究生,师从张定军副教授,主要从事功能高分子材料及其应用方面的研究。电话:18893481056,E-mail:528935644@qq.com;通讯联系人:张定军(1972-),男,甘肃天水人,兰州理工大学副教授,博士,硕士生导师,主要从事功能高分子材料及其应用方面的研究。电话:13609321215,E-mail:zhangdingjunlut@163.com。
