A method for producing a fluoropolymer powder including (Al) adding, to a fluoropolymer aqueous dispersion obtained by polymerization using a carboxylic acid type hydrocarbon surfactant, an acid to adjust a pH to 4.0 or less and cause coagulation to thereby obtain a wet fluoropolymer powder containing a fluorine-containing compound represented by the following general formula (1A), and (Bl) heat-treating the wet fluoropolymer powder at a temperature higher than 150°C and lower than 240°C:
General Formula (1A) : H-(CF2)m-COOH
wherein m is 3 to 19.
一种生产含
氟聚合物粉末的方法,包括(Al)向通过使用
羧酸型烃类表面活性剂聚合得到的含
氟聚合物
水分散液中添加一种酸,以将pH值调节到4.0或更低,并使其凝结,从而得到含有由以下通式(1A)表示的含
氟化合物的湿含
氟聚合物粉末,以及(Bl)在高于150℃但低于240℃的温度下对湿含
氟聚合物粉末进行热处理:
通式 (1A) :H-(
CF2)m-COOH
其中 m 为 3 至 19。