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电化学阻抗法研究环氧膜的吸水性能

Studies on Water Absorption of Epoxy Resins by Electrochemical Impedance Spectroscopy
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摘要 电化学阻抗法研究环氧膜的吸水性能罗小雯,陈月辉,李善君,周伟舫(复旦大学高分子科学系,化学系,上海,200433)关键词电化学阻抗谱,环氧膜,交联密度,吸水性能水在环氧树脂膜中有较强的吸收和扩散能力,例如XD7342/TMAB于195℃固化24h,在... Electrochemical impedance spectra were measured for the aluminum electrodes coated with epoxy resin films of various different crosslinking densities in 0.5 mol/L NaCl solution(room temperature) at open circuit potential.By fitting the Nyquist curves with the equivalent circuit generally used for the coated electrode,the values of the film resistance,the film capacitance,the electrochemical reaction resistance and the double layer capacitance were obtained and used to discuss the relationship between the structure and the water absorption of epoxy resins.It is found that the amount of the water absorbed in the cured epoxy resins increases with increasing extent of cure.
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 1996年第2期329-331,共3页 Chemical Journal of Chinese Universities
基金 国家自然科学基金
关键词 电化学阻抗谱 环氧膜 吸水性能 Electrochemical impedance spectroscopy.Epoxy film,Crosslinking density,Water absorption
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参考文献1

  • 1陈月辉,化学学报,1995年,53卷,328页

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