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中文摘要: 以欧车前胶(PSY)、丙烯酸(AA)和钠基蒙脱土(Na-MMT)为原料，过硫酸铵(APS)为引发剂，N,N′ 亚甲基双丙烯酰胺(MBA)为交联剂，采用水溶液聚合法制备了欧车前胶接枝聚丙烯酸/钠基蒙脱土(PSY-g-PAA/Na-MMT)复合高吸水性树脂。考察了Na-MMT质量分数对复合高吸水性树脂吸水能力和Cu2+吸附量的影响，研究了树脂在不同浓度NaCl、MgCl2和AlCl3溶液中的溶胀行为。红外光谱结果表明：Na-MMT参与了接枝聚合反应，当Na MMT质量分数为30%时，树脂达到最优吸水性能。复合
Abstract:A series of psyllium gum-g-poly(acrylic acid)/Na montmorillonite(PSY-g-PAA/Na-MMT) superabsorbent composites were prepared by free radical graft copolymerization among psyllium gum (PSY), acrylic acid (AA) and Na montmorillonite (Na-MMT), using ammonium persulfate (APS) as the initiator and N,N′-methylenebisacrylamide (MBA) as the crosslinker. Effects of Na-MMT mass fraction on the water absorption and the adsorption performance for Cu2+ were investigated, and the swelling behaviors of the superabsorbents in various concentrations of NaCl, MgCl2 and AlCl3 solutions were studied. Infrared spectra confirmed that Na-MMT participated in polymerization reaction. The superabsorbent composite achieved the best water absorption when the mass fraction of Na-MMT was 30%. In addition, the adsorption of superabsorbent composites for Cu2+ from aqueous solution can reach 95% of the saturation adsorption capacity during the initial 15 min, and can achieve adsorption equilibrium within about 60 min.
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基金项目:国家自然科学基金项目(20877077)
| 作者 | 单位 | |
| 安建科 | 1.中国科学院兰州化学物理研究所，兰州 730000；2.兰州大学化学化工学院，兰州 730000 | anjk08@lzu.edu.cn |
| 刘毅 | 中国科学院兰州化学物理研究所，兰州 730000 | |
| 王爱勤 | 1.中国科学院兰州化学物理研究所，兰州 730000；2.兰州大学化学化工学院，兰州 730002 | aqwang@licp.cas.cn |
引用本文：
安建科,刘毅,王爱勤.PSY-g-PAA/Na-MMT复合高吸水性树脂的制备及其对Cu2+的吸附[J].功能高分子学报,2011,24(2):.
AN Jian-ke,LIU Yi,WANG Ai-qin.Preparation of Psyllium Gum-g-Poly(acrylic acid)/Na Montmorillonite Superabsorbent Composites and Its Adsorption Performance for Cu2+[J].Journal of Functional Polymers,2011,24(2):.
安建科,刘毅,王爱勤.PSY-g-PAA/Na-MMT复合高吸水性树脂的制备及其对Cu2+的吸附[J].功能高分子学报,2011,24(2):.
AN Jian-ke,LIU Yi,WANG Ai-qin.Preparation of Psyllium Gum-g-Poly(acrylic acid)/Na Montmorillonite Superabsorbent Composites and Its Adsorption Performance for Cu2+[J].Journal of Functional Polymers,2011,24(2):.
