The present invention pertains to a process for manufacturing one or more fluoropolymer fibres, said process comprising the following steps: (i) providing a liquid composition [composition (C1)] comprising: —at least one fluoropolymer comprising at least one hydroxyl end group [polymer (F
OH
)L and—a liquid medium comprising at least one organic solvent [solvent (S)]; (ii) contacting the composition (C1) provided in step (i) with at least one metal compound [compound (M)] of formula (I) here below: X
4-m
AY
m
(I) wherein X is a hydrocarbon group, optionally comprising one or more functional groups, m is an integer from 1 to 4, A is a metal selected from the group consisting of Si, Ti and Zr, and Y is a hydrolysable group selected from the group consisting of an alkoxy group, an acyloxy group and a hydroxyl group, thereby providing a liquid composition [composition (C2)]; (iii) submitting to at least partial hydrolysis and/or polycondensation the composition (C2) provided in step (ii) thereby providing a liquid composition [composition (C3)] comprising at least one fluoropolymer hybrid organic/inorganic composite; (iv) processing the composition (C3) provided in step (iii) by electrospinning thereby providing one or more fluoropolymer fibres; (v) drying the fluoropolymer fibre(s) provided in step (iv); and (vi) optionally, submitting to compression the fluoropolymer fibre(s) provided in step (v) at a temperature comprised between 50° C. and 300° C. The invention also pertains to a process for the manufacture of said fluoropolymer fibre(s) and to uses of said fluoropolymer fibre(s) in various applications.
本发明涉及一种制造一种或多种
氟聚合物纤维的方法,该方法包括以下步骤:(i)提供一种液态组合物[组合物(C1)],包括:-至少一种含有至少一个羟基末端基团的
氟聚合物[聚合物(FOH)L和-至少一种有机溶剂[溶剂(S)]组成的液体介质;(ii)将步骤(i)中提供的组合物(C1)与下式(I)中的至少一种
金属化合物[M]接触:X4-mAYm(I)其中X为烃基,可选地包括一个或多个功能基团,m为1至4的整数,A为从Si、Ti和Zr组成的
金属,Y为从烷氧基、酰氧基和羟基组成的可
水解基团,从而提供一种液态组合物[组合物(C2)];(iii)对步骤(ii)中提供的组合物(C2)进行至少部分
水解和/或缩聚,从而提供一种液态组合物[组合物(C3)],其中包括至少一种
氟聚合物杂化有机/无机复合材料;(iv)通过电纺处理步骤(iii)中提供的组合物(C3),从而提供一种或多种
氟聚合物纤维;(v)干燥步骤(iv)中提供的
氟聚合物纤维;(vi)可选地,在50℃至300℃之间的温度下对步骤(v)中提供的
氟聚合物纤维进行压缩。本发明还涉及一种制造所述
氟聚合物纤维的方法以及在各种应用中使用所述
氟聚合物纤维的用途。