论文部分内容阅读
以壳聚糖(CTs)﹑马来酸酐(MA)﹑2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为原料,过硫酸铵(APS)为引发剂,N,N’-亚甲基双丙烯酰胺(NMBA)为交联剂,采用紫外光固化的方法合成CTs/AMPS/MA三元共聚高吸水树脂。研究了反应条件对树脂吸水性能的影响,结果表明,当固含量为15.87%,nAMPS∶nMA=14∶1,ω(CTs)=2%,ω(NMBA)=2.5%,ω(APS)=0.3%,pH=3,固化时间为5min时可得到具有较好吸水性的高吸水树脂,在蒸馏水中的最大吸水率为555g/g。采用FT-IR和TGA对树脂结构及热稳定性进行表征,并对其吸水速率及动力学进行分析,反吸液能力测定表明制备的树脂具有一定的降解性。
Using chitosan (CTs), maleic anhydride (MA), 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as raw materials and ammonium persulfate (APS) as initiator, N, N’- Methyl bisacrylamide (NMBA) as crosslinking agent, using UV curing method to synthesize CTs / AMPS / MA terpolymer superabsorbent. The effects of reaction conditions on the water absorption of the resin were investigated. The results showed that when the solid content was 15.87%, nAMPS:nMA = 14:1, ω (CTs) = 2%, ω (NMBA) = 2.5% 0.3%, pH = 3, the curing time is 5min, the super absorbent resin with good water absorption can be obtained. The maximum water absorption in distilled water is 555g / g. The structure and thermal stability of the resin were characterized by FT-IR and TGA, and the water absorption rate and kinetics were analyzed. The determination of the anti-aspiration ability of the resin showed that the prepared resin had certain degradability.