摘要
以羧甲基纤维素钠和丙烯酸为原料,通过微波辐射的方式合成高吸水性树脂,并考察丙烯酸中和度、交联剂用量、引发剂用量等因素对产品吸水能力的影响。结果表明,较优的合成条件为羧甲基纤维素钠1.00 g、pH值6.5的丙烯酸6 mL、去离子水10 mL、硝酸铈铵0.25 g、1.00 g/L N,N′-亚甲基双丙烯酰胺溶液3 mL、微波低火加热5 min;所制备的纤维素基高吸水性树脂对去离子水和生理盐水的吸液倍率最高可分别达到478.2和69.5 g/g。
Superabsorbent resin with carboxymethyl cellulose base was prepared using acrylic acid as monomers by microwave irradiation.Effects of many factors（such as the neutralization of acrylic acid,content of initiator and cross linker） on the water absorption behavior of the resin were investigated.The optimal synthetic conditions were as follows,1.00 g carboxymethyl cellulose,6 mL acrylic acid with pH 6.5,10 mL distilled water,0.25 g ammonium ceric nitrate,3 mL N,N′-methylene bisacrylamide with concentration of 1.00 g/L,reacting for 5 min under low fire-power of microwave.The highest water absorbency of the resin for distilled water and 0.9% NaCl solution were 478.2 and 69.5 g/g respectively.
出处
《湖北农业科学》
北大核心
2011年第14期2948-2949,2962,共3页
Hubei Agricultural Sciences
基金
西南科技大学博士基金项目(09zx7109)
关键词
纤维素
高吸水材料
微波
接枝共聚
carboxymethyl cellulose
superabsorbent
microwave
graft copolymerization
