Method for producing fluoropolymer membranes, membranes produced according to method and uses thereof

The invention relates to a method for producing a fluoropolymer film based on a fluorocopolymer, in which a melt of the fluorocopolymer heated to > 320 DEG C is extruded from a heated nozzle into a temperature-controlled mould comprising at least two rollers and further guided through a gap of th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BEHAMOUR ALI, VON GROSSMANN, UDO, FRITSMIEDER, ANDREAS
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a method for producing a fluoropolymer film based on a fluorocopolymer, in which a melt of the fluorocopolymer heated to > 320 DEG C is extruded from a heated nozzle into a temperature-controlled mould comprising at least two rollers and further guided through a gap of the mould in order to form a fluoropolymer film from the melt, characterized in that the temperature of the first roll is set to 100 DEG C to 200 DEG C, the temperature of the second roll is set to 80 DEG C to 130 DEG C, and the temperature of the third roll is set to 80 DEG C to 160 DEG C, and the temperature of the melt is reduced to > 100 DEG C immediately after entering the mold. The invention also relates to a fluoropolymer film produced according to the method and to the use thereof. 本发明涉及一种用于制造基于氟共聚物的氟聚合物膜的方法,其中氟共聚物的加热至>320℃的熔体从经加热的喷嘴挤出到包括至少两个辊的温度控制的模具中,并且进一步穿过所述模具的缝隙引导,以便由所述熔体形成氟聚合物膜,其特征在于,将第一辊的温度设定为100℃至200℃,第二辊的温度设定为80℃至130℃,并且第三辊的温度设定为80℃至160℃,并且在进入模具之后,将熔体的温度立即降低至>100℃。本发明还涉及根据方法制造的氟聚合物膜及其应用。