| 聚(N-异丙基丙烯酰胺)/海藻酸钠/黏土复合水凝胶的制备及其性能 |
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| 引用本文： | 代旭明,刘鑫,马敬红.聚(N-异丙基丙烯酰胺)/海藻酸钠/黏土复合水凝胶的制备及其性能[J].化工进展,2009,28(4):661. |
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| 作者姓名： | 代旭明 刘鑫 马敬红 |
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| 作者单位： | 东华大学纤维材料改性国家重点实验室 |
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| 基金项目： | 上海市重点学科建设项目(B603)资助 |
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| 摘 要： | 以无机黏土为交联剂制备了聚（N-异丙基丙烯酰胺）/海藻酸钠/黏土（PINPA/SA/clay）复合水凝胶，通过红外光谱、X射线衍射和SEM对凝胶的结构和形态进行了表征，并研究了凝胶的溶胀动力学和力学性能。结果表明：黏土的结晶结构已被破坏，黏土规整的片层被剥离并在凝胶中无序分布，起到交联剂的作用；随黏土含量的增加，凝胶网络交联密度增加，孔洞的孔径减小，溶胀速度下降。另外，PINPA/SA/clay凝胶显示了良好的力学性能，断裂伸长率超过1000%。
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| 关 键 词： | 聚（N-异丙基丙烯酰胺） 海藻酸钠 黏土 溶胀性能 力学性能 |
Preparation and characterization of sodium alginate/poly(N-isopropylacrylamide)/clay composite hydrogel |
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| DAI Xuming,LIU Xin,MA Jinghong.Preparation and characterization of sodium alginate/poly(N-isopropylacrylamide)/clay composite hydrogel[J].Chemical Industry and Engineering Progress,2009,28(4):661. |
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| Authors: | DAI Xuming LIU Xin MA Jinghong |
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| Affiliation: | State Key Laboratory for cellulose materials modificarion，Donghua University |
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| Abstract: | A new kind of composite hydrogel based on Sodium Alginate(SA) and poly(N-isopropylacrylamide)(PNIPA) cross-linked by inorganic clay(Laponite XLG) was synthesized.The structure and morphology were characterized by means of FT-IR,XRD and SEM.Swelling behavior and mechanical properties of these novel hydrogels were also studied.The results showed that the regular crystal structures of clay were destroyed and the clay platelets were exfoliated and dispersed randomly in the hydrogels,which acted as a multifuncti... |
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