交联淀粉接枝丙烯酰胺絮凝剂合成方法的对比  

Comparison of synthesis methods of cross-linked starch graft acrylamide flocculant

作　　者：郭雅妮[1] 杨卓 穆林聪 GUO Ya-ni;YANG Zhuo;MU Lin-cong(School of Enviornment and Chemical Engineering,Xi'an Polytechnic University,Xi'an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《化学工程师》2021年第8期1-5,41,共6页Chemical Engineer

基　　金：陕西省重点研发计划(2017GY-121);陕西省重点研发计划(2019SF-242);西安市科技局创新引导项目(201805030YD8CG14(13))。

摘　　要：将环氧氯丙烷作为交联剂加入木薯淀粉中,制备交联木薯淀粉(CL-St);再以制得的交联淀粉与丙烯酰胺单体为原料,采用水溶液聚合法和反相乳液法制备交联淀粉接枝丙烯酰胺絮凝剂(CL-St-PAM),对两种方法制得的絮凝剂进行性能比较分析。结果表明,在相同的条件下,水溶液聚合法CL-St-PAM的絮凝率最高可达93.4%,反相乳液法CL-St-PAM的絮凝率最高可达92.3%,说明水溶液聚合法制备CL-St-PAM的絮凝性能优于反相乳液法,且适用范围更广。Added epichlorohydrin as a cross-linking agent to cassava starch to prepare cross-linked cassava starch(CL-St);then using the obtained cross-linked starch and acrylamide monomer as raw materials in order to get cross-linked starch grafted acrylamide flocculant(CL-St-PAM),with aqueous solution polymerization and inverse emulsion method,and the performance of the flocculants prepared by the two methods was compared and analyzed.The results showed that,under the same conditions,the flocculation rate of CL-St-PAM by the aqueous solution polymerization method could reach 93.4%,and the flocculation rate of it by the inverse emulsion method was up to 92.3%,indicating that the flocculation performance of CL-St-PAM by aqueous solution polymerization was better than that of inverse emulsion method,and the application was wider.

关 键 词：水溶液聚合法 反相乳液法 交联木薯淀粉絮凝剂 

分 类 号：TB352[一般工业技术—材料科学与工程]