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首页> 外文期刊>Journal of Applied Polymer Science >Green preparation of thermal and solvent resistant poly (tetrafluoroethylene-co-perfluoropropylvinyl ether) hollow fiber membrane for organic solvent recycling
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Green preparation of thermal and solvent resistant poly (tetrafluoroethylene-co-perfluoropropylvinyl ether) hollow fiber membrane for organic solvent recycling

机译：用于有机溶剂回收的热和耐药耐药聚（四氟乙烯 - 共氟丙基乙烯基醚）中空纤维膜的绿色制备

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摘要

So far, the organic solvent recycling still has great challenges. Herein, the thermal and solvent resistant poly (tetrafluoroethylene-co-perfluoropropylvinyl ether) (PFA) hollow fiber membranes (TS-PFA HFMs) were continuously designed by on-line compound technique for organic solvent recycling. The experiment results indicated that the increased sintering temperature brought about the porous surface and loose internal cavity structures. Importantly, the membrane exhibited the excellent thermal resistance at 70 degrees C working condition. Furthermore, part of the poly (vinyl alcohol) was retained in the membrane which was competent to create synergistic effects, and endowed the membrane with not only favorable elasticity but also remarkable hot water resistance. Finally, the excellent organic solvent recycling ability of the membrane was demonstrated in simulated non-aqueous solvent dyeing system. Specifically, no organic solvents or other hazardous substances were used during the fabrication process, which can realize the green preparation of the membrane.
机译：到目前为止，有机溶剂的回收仍然面临着巨大的挑战。在此，通过在线复合技术连续设计了耐高温耐溶剂的聚四氟乙烯-全氟丙基乙烯基醚（PFA）中空纤维膜（TS-PFA-HFMs），用于有机溶剂回收。实验结果表明，烧结温度的升高导致了多孔表面和疏松的内腔结构。重要的是，该膜在70℃的工作条件下表现出优异的耐热性。此外，部分聚乙烯醇保留在膜中，能够产生协同效应，使膜不仅具有良好的弹性，而且具有显著的耐热水性。最后，在模拟的非水溶剂染色系统中，证明了该膜具有良好的有机溶剂回收能力。具体而言，在制备过程中不使用有机溶剂或其他有害物质，可以实现膜的绿色制备。

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