摘要
以木薯淀粉、硅藻土、丙烯酸为原料,N,N'-亚甲基双丙烯酰胺为交联剂,过硫酸铵为引发剂,通过水溶液聚合法制备了木薯淀粉-硅藻土-丙烯酸复合高吸水树脂。分别对引发剂用量、交联剂用量、丙烯酸与淀粉的摩尔比、中和度、硅藻土用量进行单位因素实验和正交实验,并通过极差分析对影响材料吸水率的因素做统计分析。最佳的反应工艺条件为:以丙烯酸单体质量为基准,引发剂用量0.55%,交联剂用量0.06%,丙烯酸与淀粉摩尔比10.5,中和度75%,硅藻土用量18%。在此条件下合成的木薯淀粉-硅藻土-丙烯酸高吸水性树脂吸水、吸盐率分别为912 g/g,94 g/g。
A series of novel cassava starch-diatomite-acrylic acid superahsorbing composites were synthesized via aqueous solution polymerization by using cassava starch, diatomite and acrylic acid as raw materials, N, N＇ -methylenebisacrylamide as a crosslinker and ammonium persulfate as a initiator. The effects of the amount of the initiator and crosslinker, molar ratio of acrylic acid to starch, neutralization degree and diatomite amount on the absorbency of the composites were studied by single factor test and orthogonal array design methods, and the factors influencing the water absorbency of the composites were analyzed with the statistic method of range. The optimal reaction conditions were as follows： the amount of the initiator, crosslinker and diatomite were 0.55%, 0.06% and 18% of the mass of acrylic acid, the molar ratio of acrylic acid to starch was 10.5, and the neutralization degree was 75%. Under the conditions, the maximum water absorbability and the salt absorption ability （normal saline） of the superahsorbing composite were 912 g/g and 94 g/g, respectively.
出处
《合成树脂及塑料》
CAS
北大核心
2013年第4期36-39,共4页
China Synthetic Resin and Plastics
基金
福建省教育厅科技计划项目(JA12415)
漳州职业技术学院科研计划资助项目(ZZY1202)
闽南师范大学大学生创新创业训练计划项目
关键词
吸水树脂
木薯淀粉
硅藻土
丙烯酸
water absorbing resin
cassava starch
diatomite
acrylic acid
