反相悬浮聚合法制备耐高温吸水材料及其性能研究

发布时间：2018-04-01 04:40

  本文选题：耐高温吸水材料　切入点：四烯丙基氯化铵　出处：《合成树脂及塑料》2017年04期

【摘要】：针对现有吸水材料存在耐高温性能差的问题,以丙烯酸钠为聚合单体,环己烷为连续相,Span80为分散剂,四烯丙基氯化铵为交联剂,过硫酸铵为引发剂,采用反相悬浮聚合法制备了耐高温吸水材料。探讨了交联剂浓度、分散剂用量和引发剂浓度等对吸水材料在不同温度条件下吸水性能的影响,并对吸水材料结构进行分析。最佳的聚合条件:分散剂、交联剂、引发剂占单体的质量分数分别为5.00%,0.14%,0.10%,在此条件下制备的吸水材料在200℃的蒸馏水中的吸水倍率为400 g/g,耐高温性能良好。
[Abstract]:In view of the poor high temperature resistance of the existing water-absorbent materials, sodium acrylate as polymerization monomer, cyclohexane as continuous phase Span80 as dispersant, tetraallylammonium chloride as crosslinking agent, ammonium persulfate as initiator, etc.High temperature absorbent materials were prepared by inverse suspension polymerization.The effects of the concentration of crosslinking agent, the amount of dispersant and the concentration of initiator on the absorbency of water absorbent at different temperatures were discussed, and the structure of the absorbent was analyzed.The optimum polymerization conditions are as follows: the mass fraction of dispersant, crosslinking agent and initiator to monomer is 5.00% and 0.14%, respectively. The absorbent material prepared under this condition has a water absorption ratio of 400 g / g in distilled water at 200 鈩，

本文编号：1694014