摘要
以阿拉伯胶(GA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,N,N-亚甲基双丙烯酰胺(NMBA)为交联剂,过硫酸钾(APS)为引发剂,采用微波辐射方法制备了GA-g-PAMPS高吸水性树脂。探讨了单体配比、交联剂用量、引发剂用量、中和度、微波功率和辐射时间对吸水倍率的影响,研究了树脂的溶胀性能,并用FTIR对吸水性树脂的结构进行了表征。结果表明:最佳合成条件下得到的树脂吸去离子水倍率为683 g/g,吸生理盐水倍率为137 g/g。树脂的吸水倍率随着无机盐溶液浓度的增加而减小,在不同价态金属离子盐溶液中,树脂的吸水倍率从大到小的顺序为Na Cl>Ba Cl2>Fe Cl3,树脂具有较高的吸水速率和较好的重复吸水性能。
A novel gum arabic-g-poly（2-acrylamido-2-methylpropanesulfonicacid） superabsorbent resin was synthesized by aqueous solution polymerization using microwave irradiation in the presence of potassium persulfate（KPS） as an initiator and N,N-methylene-bis-acrylamide（NMBA） as a crosslinking agent.The effects of the mass ratio of AMPS to GA,crosslinker,initiator,neutralization degree,power and time on the water absorbency of the superabsorbent resin were investigated systematically,and the swelling properties of the superabsorbent resin were studied.The chemical microstructure of GA-g-PAMPS superabsorbent resin was determined by FTIR.Under the optimum reaction conditions,the water absorbency of the superabsorbent resin is 683 g / g in deionized water and137 g / g in normal saline.The water absorbency of the superabsorbent resin decreases with increasing concentration of various external saline solutions,and has the following tendency in different metal ions saline solutions：NaCl 〉CaCl2 〉FeCl3.The superabsorbent resin has a high water absorbency rate and a good reswelling capacity.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2015年第1期12-16,共5页
Fine Chemicals
基金
安徽省高校自然科学基金资助项目(KJ2009B054Z
KJ2009B120Z)~~
