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.
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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