Abstract: This article has discussed the fluorine conten tmeasuringmethods influo rocarbon coatings. Asfluororesin is decomposed by oxygen flask method, fluorine atoms in the fluororesin are converted into ions,which is then determ ined by titration method with lanthanum nitrate standard so lution. A ccording to quantitative relation, the fluorine content in fluorocarbon coatings can be calcu lated.This method is simple and easy, accurate and reliable and timesaving

Key words: fluorocarbon coatings; lanthanum nitrate; hematoxy lin; fluorine conten;t oxygen flask methed

摘要： 讨论了以氧气瓶燃烧法分解氟树脂, 把氟树脂中的氟转化为氟离子, 然后以硝酸镧标准溶液进行滴定, 从而测定出氟树脂中的氟含量,再根据定量关系计算出氟树脂涂料中的氟含量的方法。该方法简单易行,准确可靠,省时省力。

关键词: 氟树脂涂料;硝酸镧;苏木精;氟含量;氧气瓶燃烧法