中文摘要：

以丙烯酸（AA）、聚乙二醇（PEG）和腐植酸（HA）为原料，N,N-二亚甲基双丙烯酰胺（MBA）为交联剂，过硫酸铵（APS）为引发剂，采用水溶液法合成了不同HA含量的AA—PEG—HA三元共聚复合吸水树脂。最佳的实验条件为：APS用量占AA质量的4％，MBA用量占AA质量的0．500％，AA中和度为60％，V（H2O）／v（AA）为6.25，反应温度为80℃，反应时间为9．0h。在最佳实验条件下，当HA用量占AA质量的75％时，所合成的树脂在去离子水中的吸液率为310g儋，在质量分数为0．9％的NaCI溶液中的吸液率为38g/g。

英文摘要：

A series of acrylic acid （AA）-polyethylene glycol （PEG）-humic acid （HA） superabsorbent composites containing HA in different content were prepared via aqueous polymerization from AA, PEG and HA with N,N＇-methylenebisacrylamide （MBA） as crosslinker and ammonium persulfate （APS） as initiator. The optimal experimental conditions were as follows： the content of APS and MBA accounted for 4% and 0.500% of the mass of AA, respectively, the neutralization degree of AA was 60% in molar fraction, the volume ratio of AA to H20 was 6.25, the reaction temperature was 80℃ and reaction time was 2.0 h. Under such conditions, the water absorbability of the resin obtained was 310 g/g in deionized water and 38 g/g in NaCl solution containing 0.9% of NaCl in mass fraction when the content of HA accounted for 75% of the mass of AA.