发布时间:2025-02-06 15:47:14
苯酚在环氧树脂中含量一般都是很低的。环氧树脂的粘度又很大,通过蒸馏等手段根本无法去除。
可以用稀碱液进行洗涤。苯酚是酸性的,溶于稀碱液形成苯酚钠,而除去。最后再用清水洗涤几遍,将碱液清洗干净,水蒸掉,即可。
304不锈钢退火后硬度一般为hb200左右经冷加工硬化后能达到hrc45吗
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