反向悬浮聚合法合成腐植酸基复合高吸水性树脂的研究

以腐植酸与丙烯酰胺为原料,采用反向悬浮聚合法制备了一种腐植酸基复合高吸水性树脂聚丙烯酰胺-腐植酸钠(PAM-NaHA),分别研究了交联剂、引发剂用量及聚合温度对树脂吸水率的影响,以及树脂对沙土吸水保水性能的促进作用.结果表明:当n(MBAA)∶n(AM)=0.0005、n(APS)∶n(AM)=0.008、聚合温度为6...

Synthesis of Humic Acid Based Composite Superabsorbent Resin by Inverse Suspension Polymerization

The superabsorbent polymer was synthesized by reaction of acrylamide with humic acid through inverse suspension polymerization. The effects of factors such as amount of cross-linking agent, initiator and temperature on the swelling ratio of the superabsorbent polymer were discussed. Promotion of the resin to water absorption and retention capacity of the sand were also studied. The results showed that the absorbent ability of the resin was 887g. g-i for pure water, 357 g· g-1 for tap water and 128g· g-1 for 0.9%NaC1 solution under the condition that molar ratio of MBAA and AM was 0.0005, molar ratio of APS and AM was 0.008 and temperature was 65°C. The water absorption and retention capacity of the sand can be significantly improved when proper PAM-NaHA was added into it.