离子导电砂浆电学性能影响因素研究

发布时间：2018-06-01 01:38

  本文选题：离子导电砂浆 + 电阻率　； 参考：《建筑材料学报》2017年04期

【摘要】：用电解质溶液作为导电相材料来制备离子导电砂浆,在砂浆表面辊涂环氧树脂以保证稳定的导电性,并对影响离子导电砂浆电学性能的多种因素开展试验研究.结果表明:在一定的离子溶液质量分数范围内,离子导电砂浆电阻率随离子溶液质量分数的增加而减小;受离子导电砂浆内部孔结构和溶质溶解度的影响,质量分数过高的离子溶液会降低离子导电砂浆的渗透效率,对离子导电砂浆导电性不利.不同离子溶液的溶质溶解度不同,因此离子导电砂浆最优导电性所对应的溶液质量分数也有所不同.在制作离子导电砂浆时应综合当时的环境温度与溶液种类,确定其溶解度并选择适当的溶液质量分数.由于离子导电砂浆的电极与离子溶液之间将发生电化学反应,因此应选择交换电流密度较大的电极,并考虑电极的可逆性.
[Abstract]:Ionic conductive mortar was prepared by using electrolyte solution as conductive phase material. Epoxy resin was rolled on the surface of mortar to ensure stable electrical conductivity. Many factors affecting the electrical properties of ionic conductive mortar were studied experimentally. The results show that the resistivity of ionic conductive mortar decreases with the increase of ionic solution mass fraction in a certain range of ionic solution mass fraction, and is affected by the pore structure and solute solubility of ionic conductive mortar. The ionic solution with too high mass fraction will reduce the permeation efficiency of ionic conductive mortar, which will be disadvantageous to the conductivity of ionic conductive mortar. The solute solubility of different ionic solutions is different, so the solution mass fraction corresponding to the optimal conductivity of ionic conductive mortar is different. When making ionic conductive mortar, it is necessary to synthesize the ambient temperature and the kind of solution at that time, to determine its solubility and to select the appropriate solution mass fraction. Due to the electrochemical reaction between the electrode of ionic conductive mortar and ionic solution, the electrode with high exchange current density should be selected and the reversibility of the electrode should be considered.
【作者单位】： 广州大学工程结构抗风与结构安全国家国际科技合作示范基地;广州大学广东省工程结构抗风与健康监测工程技术研究开发中心;
【基金】：国家自然科学基金资助项目(51308138) 广东省教育厅特色创新项目(2016KTSCX102) 广州市科技计划项目(201707010285)
【分类号】：TU578.1
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本文编号：1962362