Effect of temperature on the evaluation of hydrophobic condition of polymer surface
Effect of temperature on the evaluation of hydrophobic condition of polymer surface
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DOI：
10.1109/ceidp.2007.4451538
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发表时间：
2007-10
期刊：
影响因子：
--
通讯作者：
T. Tokoro;A. Ohno;M. Nagao
中科院分区：
文献类型：
--
作者：
T. Tokoro;A. Ohno;M. Nagao
聚合物表面的疏水性是聚合物绝缘体材料的降解指标之一，通常通过样品表面喷水的图像来评估。固体和液体的表面自由能都具有负温度依赖性。固体表面自由能的降低增加了疏水性；然而，液体1的减少降低了疏水性。在本研究中，在5℃、22℃（室温）和50℃下测量了样品表面的疏水状况。在温度均衡至室温期间，测量疏水状况的变化。这些结果的比较可以更准确地定义聚合物绝缘子疏水性的退化。
Hydrophobicity of polymer surface is one of the degradation indices of polymer insulator material and is usually evaluated by using an image of sprayed water on the sample surface. Surface free energy of both solid and liquid have negative temperature dependence. The decrease of surface free energy of solid increases the hydrophobic property; however, the decrease of the one of liquid decreases the hydrophobic property. In this study, the hydrophobic condition of the sample surface was measured at 5, 22 (Room temperature), and 50degC. During the temperature equalization to the room temperature, changes in the hydrophobic condition were measured. Comparing of these results can define the degradation of hydrophobicity of polymer insulator more accurately.