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    瓜尔豆胶-明胶复配弹性体的电场响应性能

    Electric Field Response Property of the Guar-Gum Gelatin Complex Hydrogel

    • 摘要: 通过将生物高分子明胶与瓜尔豆胶复配,在有/无电场作用下分别制备出瓜尔豆胶 明胶的复配弹性体A-弹性体(有电场作用)与B-弹性体(无电场作用)。通过动态黏弹谱仪测试其储能模量,探讨在不同外加电场下,瓜尔豆胶与明胶的浓度对弹性体电场响应性能的影响。结果表明:A-弹性体和B-弹性体的储能模量(G)随着瓜尔豆胶和明胶浓度的增加而增加。此外,GA< GB,GA随着电场的增加而减小,表明复配弹性体对外加电场产生负响应,且储能模量变化率的绝对值随外加电场的增大而增强。

       

      Abstract: The natural hydrogel elastomers in the presence or absence of direct current electric-field are prepared to mixing guar gum and gelatin directly(A-gel for the elastomer in the presence of direct current electric field, B-gel for the elastomer without electric-field). Dynamic viscoelastic spectrometer is used to investigate the storage modulus. The electric-field response properties of the elastomer as a function of both guar gum and gelatin concentration under various electric-fields are discussed. Results demonstrate that the storage modulus of A-gel (GA) or B-gel (GB) continuously increases with the increasing of guar gum and gelatin concentration. In addition, GA is lower than GB, and GA reduces with the increasing of electric-field, which means the negative electric field response. And the absolute value of the increment sensitivity increase with the increasing of electric-field.

       

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