摘要
以丙烯酸(AA)、魔芋葡甘聚糖(KGM)、腐植酸(HA)为原料,N,N'-二亚甲基双丙烯酰胺(MBA)为交联剂,过硫酸钾(KPS)为引发剂,采用水溶液合成法制备具有半互穿网络结构的PAA/KGM/HA三元共聚吸水树脂。研究了丙烯酸中和度、单体配比、聚合温度、引发剂质量分数和交联剂质量分数对吸水树脂分别吸自来水和盐水的性能的影响,并对产物分别进行FTIR、SEM等表征测试。结果表明:当丙烯酸中和度为80%,温度为80℃,制备材料的最佳配比为m(AA)∶m(KGM)∶m(HA)∶w(APS)∶w(MBA)=10∶1.5∶0.1∶1.6%∶0.8%,此时吸自来水倍率最高可达1 012 g/g,吸盐水倍率为112 g/g,并且拥有较好的保水能力。
Poly( acrylic acid)/poly( konjac glueomannan)/poly( humic acid) superabsorbent resin is prepared by solution polymerization using acrylic acid( AA),konjac glueomannan( KGM) and humic acid( HA) as raw materials,N,N-methylenebisacrylamide( MBA) as crosslinking agent and ammonium persulfate( APS) as initiator,respectively.The effects of the neutralization degree of acrylic acid,the ratio of monomers,reaction temperature,the amount of initiator and cross-linking agent on the water absorbent ability are investigated. The optimal preparation conditions are 80% of the neutralization degree of acrylic acid,85℃ of the polymerization temperature and 10 ∶ 1. 5 ∶ 0. 1 ∶ 1. 6 ∶ 0. 8 of m( AA) ∶ m( KGM) ∶ m( HA) ∶ w( APS) ∶ w( MBA). The superabsorbent resin obtained under the optimal condition has maximum water absorption ability up to 1012 g/g and salt water absorption rate up to 112 g/g,exhibiting good water retention performance.
出处
《现代化工》
CAS
CSCD
北大核心
2017年第3期125-128,共4页
Modern Chemical Industry
基金
陕西省农业科技创新资助项目(2012NKC02-09)
关键词
吸水树脂
丙烯酸
魔芋葡甘聚糖
腐植酸
半互穿网络
water-absorbent resin
acrylic acid
konjac glueomannan
humic acid
semi-interpenetrating network