为了抑制环氧树脂的表面电荷积累,采用氟/氮混合气对环氧树脂试样进行不同时间(10 min、30 min和60 min)的表面氟化处理,然后对树脂进行全反射红外分析,对电学性能、表面电位衰减特性、吸水性、接触角和湿热老化性能进行测试.结果表明:氟化导致环氧试样表层的化学组成和结构发生了变化,氟化的环氧树脂试样的表面电导率提高了3～4个数量级;随着氟化时间的延长,表面电导率呈先增后降的趋势,并于室温下分别约在419s,986 s和1 296 s内衰减为零;氟化试样的吸水率显著降低,氟化层明显发生了水解.
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