利用静态浸泡法通过绘制增重率-时间曲线及采用红外光谱 研究高温条件下环氧粉末涂层耐介质(水、碱)渗透的能力，探讨了高温(100℃～120℃)与 低温(T＜100℃)下该涂层中的介质传输行为.结果表明：在环境温度高于玻璃化转变温度时 ，涂层抗介质渗透能力差；在环境温度小于玻璃化转变温度时，涂层抗介质渗透能力强.介 质温度在100℃～120℃范围内，环氧涂层与其在低温条件下同样具有良好的耐碱性.
Epoxy powder coating resistance to corrosion medium in high temperature solution is investigated using static immersion method and infrared spectroscopy, analyz ed medium transport behavior between 100℃ to 120℃ and between 100℃.Experience results show:(1)When the medium temperture is higher than Tg,epoxy powder coating resistance to corrosion medium is worse.When the medium temperature is lowe r than Tg, Epoxy powder coating resistance to corrosion medium is better.( 2)Epoxy powder coatings in high temperature solution(100℃≤T≤120℃)have sa me good alkali-resistance as that in low temperature solution(T＜100℃).
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