摘要:
在不同的沉积温度-修饰温度(25℃-25℃,15℃-25℃,15℃-15℃,10℃-10℃,7.5℃-15℃,7.5℃-7.5℃)设定下,以化学沉积的方法制备银型离子聚合物金属复合材料(Ag-IPMC),并对制得试样进行了表面形貌观察以及拉伸测试和动态位移测试。结果表明: 制备温度在7.5~25℃范围内,反应温度越低,离子交换膜表面所沉积的银粒子团聚颗粒越细小。在7.5℃-7.5℃下制备试样比25℃-25℃下制备的试样团聚颗粒直径小60%。电极厚度受温度影响较大,不同温度下内、外层电极厚度差异明显(内: ~130%,外: ~70%); 制备温度在15℃-15℃的试样具有最大的弹性模量(比最小值大28%)。在实验温度范围内,最大驱动变形量随着反应温度的降低而增大,其最大值比最小值大80%。
Abstract:
Ion-exchange polymer metal composites with silver as electrodes (Ag-IPMC) samples were manufactured by the chemical deposition method under different deposition temperatures and modification temperatures of 25℃-25℃, 15℃-25℃, 15℃-15℃, 10℃-10℃, 7.5℃-15℃ and 7.5℃-7.5℃. The topographies of chemical composition of the surface electrodes were analyzed. The tensile experiments and dynamic displacement tests of Ag-IPMC samples were taken. The results show that the diameters of Ag aggregations outside of the exchange membrane are smaller under lower temperature among the manufacturing temperature range of 7.5℃ to 25℃. Comparing the samples manufactured at reaction temperature of 7.5℃-7.5℃ to those manufactured at 25℃-25℃, the diameters of Ag particles are decreased by 60%. Electrode thickness of Ag-IPMC is affected deeply by temperature, the thicknesses of the surface and interlocked electrodes differ obviously (interlocked: ~130%, surface: ~70%). The sample with the maximum elastic modulus is prepared under 15℃-15℃, 28% larger than the minimum value. Within the experimental temperature range, the maximum driven deformation increases as the reaction temperature being lower, and the maximum value is 80% larger than the minimum.
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