天津科技大学学报2018，Vol.33Issue(2)：43-48,6.DOI:10.13364/j.issn.1672-6510.20160420
聚丙烯酸类互穿聚合物网络高吸水性树脂的合成
Synthesis of Interpenetrating Polymer Network Superabsorbent Resin Based on Polyacrylate
摘要
Abstract
Superabsorbent resins with high cross-linking degree based on polyacrylate were prepared with modified poly (vinyl alcohol) (PVA)by using aqueous solution polymerization method.Acrylic acid and acrylamide were used as monomers,N,N'-methylenebisacrylamide as a cross-linker and potassium persulfate as an initiator.The mole ratios of the monomers (n (AM) ∶ n (AA)),the neutralization degree of the acrylic acid,the amounts of the cross-linker and the initiator,as well as the contents of the modified PVA in the reaction system were studied first.The relationship of the particle size of the resin versus water absorption rate was also studied.The results show that the optimum polymerizing conditions are as follows:n (AM) ∶ n(AA) =1 ∶ 2,the neutralization degree of the acrylic acid is 60％,the content of modified PVA is 10％of AM,and the contents of cross-linker and initiator are 0.04％ and 2.5％,respectively.The water absorption rate of the resin is the fastest in the first 30 s when the resin particle size is 120 meshes,but the water adsorption rate of the resin is saturated first when the resin particle size is 100 meshes.关键词
树脂/聚乙烯醇/吸水性/耐盐性Key words
resin/polyvinyl alcohol/water absorbency/salt tolerance分类
化学化工引用本文复制引用
刘丽君,张含,张雪莹,蔡荔葵,范光碧,郭敏杰..聚丙烯酸类互穿聚合物网络高吸水性树脂的合成[J].天津科技大学学报,2018,33(2):43-48,6.基金项目
天津市应用基础与前沿技术研究计划资助项目(15JCTPJC56600) （15JCTPJC56600）
国家级大学生创新创业训练计划资助项目(201210057023) （201210057023）
