摘要
为获得耐盐性能强、吸水倍率高的保水剂,以丙烯酸、丙烯酰胺和褐煤磺化腐植酸为原料,采用水溶液聚合法合成了褐煤磺化腐植酸型超强保水剂。通过正交试验分析交联剂N-N亚甲基双丙烯酰胺MBA、丙烯酰胺AM、引发剂过硫酸钾KPS、褐煤磺化腐植酸SHA、Na OH、丙烯酸AA和温度对保水剂吸水倍率和吸盐水倍率的影响,采用红外光谱、扫描电镜等对制备的褐煤磺化腐植酸保水剂的微观结构进行表征,分析超强保水剂的作用机理。结果表明,褐煤磺化腐植酸保水剂的最佳制备工艺条件为:交联剂MBA为0.0144 g、AM为0.1294 g、引发剂KPS为0.0231 g、SHA为0.1838 g、Na OH为1.1667 g、AA为0.3276 g、温度为85℃,此时保水剂的吸水倍率为2834 g/g,吸盐水倍率为135 g/g。褐煤磺化腐植酸保水剂表面呈现蜂窝状结构,且有序性较强;褐煤磺化腐植酸与高吸水性树脂分子链接枝到一起,磺酸基明显增加,褐煤磺化腐植酸参与聚合反应,说明制备的保水剂是化学键合型褐煤磺化腐植酸保水剂。
In order to improve salt tolerance and water absorbency of water-containing polymer,the super absorbent polymer P（ AA / AM /SHA） was synthesized by aqueous solution polymerization with acrylic acid（ AA）,acrylamide（ AM） and sulfanated humic acid（ SHA）.The effects of cross-linking agent（ MBA）,AM,nitiator（ KPS）,SHA,Na OH,AA and temperature on water absorption were investigated by orthogonal experiment.The microstructure of P（ AA / AM / SHA） was characterized with FTIR and SEM.The water containing mechanism was analyzed. The optimal condition was that,the mass of MBA,AM,KPS,SHA,Na OH,AA was 0. 0144,0. 1294,0. 0231,0. 1838,1. 1667,0. 3276 g,the temperature was 85 ℃.Under the appropriate condition,the water absorbency of super absorbent polymer was 2834 g / g,the salt water absorbency was 135 g / g.The morphology of P（ AA / AM / SHA） was surface mesh structure by SEM. The FTIR showed that SHA took part in polymerization reaction and the P（ AA / AM / SHA） was chemically bonded type super absorbent polymer.
出处
《洁净煤技术》
CAS
2015年第1期61-64,68,共5页
Clean Coal Technology
基金
辽宁省教育厅创新团队资助项目(LT2010053)
辽宁省煤化工工程技术中心开放基金资助项目(2013-05)
辽宁科技大学学科建设资助项目(2013YJSCX05)
关键词
褐煤磺化腐植酸
保水剂
吸水倍率
吸盐水倍率
lignite sulfonated humic acid
super absorbent polymer
water absorbency
slat water absorbency
