Preparation of straw superabsorbent composite material by microwave method

摘要：

　　By microwave method, a superabsorbent function composite material was prepared by grafting sodium acrylate onto straw flour using potassium persalfate (K2S2O8) and N, N-methylene bis acrylamide as an initiator and crosslinker, respectively.The effect of various preparation conditions on its water absorbency was investigated.When the straw flour content was 6%, the acrylic acid content was 20.0g, the amount of initiator was 0.4%, the neutralization degree of monomer was 80%, the reaction temperature was 70℃ and the amount of crosslinker was 0.05%, the materials absorbency was 1360 times in distilled water and 152 times in 0.9% salt-water at ambient temperature.It had also high water retention.The analyses of SEM indicate that sodium acrylate is grafted on the polysaccharides of straw flour.

关键词： Straw superabsorbent polymer preparation characterization

作者: Lian-wei YANG Rui-jie WANG

作者单位: School of Resources and Materials, Northeastern University at Qinhuangdao Branch, Qinhuangdao 066004, China

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 337-343

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）