以聚偏氟乙烯(PVDF)为第二组分聚合物与三醋酸纤维素(CTA)共混，通过冻胶法纺丝工艺制备成中空纤维纳滤膜。

Hollow fiber NF membrane was prepared with blending of PVDF as the second component polymer and CTA, and by spinning process with gelation method.

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详细介绍了有机高分子聚合物聚四氟乙烯（PTFE）的结构特点及它作为自润滑减磨材料的原理。

Structure of organic macromolecule polymer Teflon (PTFE) and theory of its self-lubricating and friction reduction were described in detail.

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详细介绍了有机高分子聚合物聚四氟乙烯（PTFE）的结构特点及它作为自润滑减磨材料的原理。

Structure of organic macromolecule polymer Teflon (PTFE) and theory of its self-lubricating and friction reduction were described in detail.

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