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Method for purification of aqueous fluoropolymer emulsions, purified emulsions, and fluorine-containing finished articles
Method for purification of aqueous fluoropolymer emulsions, purified emulsions, and fluorine-containing finished articles
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机译:水性含氟聚合物乳液的纯化方法,纯化的乳液和含氟成品
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摘要
The present invention provides a method of purifying an aqueous fluoropolymer emulsion by which fluorine-containing surfactants can be removed without lowering the dispersibility of the aqueous fluoropolymer dispersions.;The present invention provides a method of purifying an aqueous fluoropolymer emulsion comprising; purifying an aqueous fluoropolymer emulsion by a specific technique of concentration;wherein the aqueous fluoropolymer emulsion comprises a fluoropolymer and a fluorine-containing surfactant,;said specific technique of concentration comprises concentration by phase separation, electric concentration and/or ion exchange concentration, and;said concentration by phase separation, electric concentration and/or ion exchange concentration is carried out for removing the fluorine-containing surfactant.
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