| 羟化聚天冬氨酸/纳米SiO_2复合高吸水性树脂的制备与性能 |
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| 引用本文： | 赵彦生,李栋,郭永超,彭璐,李一清.羟化聚天冬氨酸/纳米SiO_2复合高吸水性树脂的制备与性能[J].纳米科技,2011(2):46-51. |
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| 作者姓名： | 赵彦生 李栋 郭永超 彭璐 李一清 |
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| 作者单位： | 太原理工大学化学化工学院; |
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| 基金项目： | 山西省科技攻关项目(20100311117) |
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| 摘 要： | 以中间体聚琥珀酰亚胺(PS)I和改性纳米SiO2为原料,己二胺为交联剂,乙醇胺为改性剂,采用溶液一步合成法制备了羟化聚天冬氨酸/纳米SiO2复合高吸水性树脂,探讨了SiO2用量对复合树脂吸液倍率和耐盐性的影响,考察了复合树脂在不同盐溶液和自来水中的吸液性能,采用热重分析法测定树脂的热稳定性,SEM和FTIR观察、鉴定了树脂的形态和组成,结果表明,SiO2的添加能够大幅提高吸水性树脂的耐盐性能,表面改性的纳米SiO2与羟化聚天冬氨酸结合牢固,在体系中分散均匀。复合树脂具有良好的吸液性、耐盐性、热稳定性及保水性能。
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| 关 键 词： | 羟化聚天冬氨酸 纳米二氧化硅 复合高吸水性树脂 制备 性能 |
Preparation and Properties of Hydroxylated Polyaspartic Acid / Nano-silica Superabsorbent Composite |
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| Authors: | ZHAO Yan-sheng LI Dong GUO Yong-chao PENG Lu LI Yi-qing |
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| Affiliation: | ZHAO Yan-sheng,LI Dong,GUO Yong-chao,PENG Lu,LI Yi-qing (College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | Hydroxylated polyaspartic acid / nano-silica super absorbent composite was synthesized using one-step synthetic methods in solution, with poly-succinimide (PSI) and modified nano-silica as raw material, hexamethylenediamine as cross linking agents and ethanolamine as modifiers. Effects of silica dosage on the swelling capacity and the salt tolerance were studied, while the absorbing properties of composite in different salt solutions and tap water were investigated. The composition,structure, morphology and... |
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| Keywords: | hydroxylated polyaspartic acid nano-silica superabsorbent composite preparation property |
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