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拉伸工艺对膨体PTFE薄膜微孔结构的影响
Effect of stretching process on expanded PTFE membrane porous structure
【摘要】 研究了双向拉伸工艺对膨体聚四氟乙烯(PTFE)薄膜结构的影响.结果表明,横向扩幅倍数、纵向扩幅倍数和定型温度越高,PTFE薄膜开孔率和孔径越大;横向扩幅速度越高,薄膜开孔率越大,孔径也越小.PTFE薄膜已广泛用于防水透湿多功能服、生化防护服以及工业过滤等.
【Abstract】 The structure of PTFE membrane prepared by bi-axial stretching technique was researched. The results show that longitudinal stretching ratio, traverse stretching ratio, traverse stretching rate and setting temperature have remarkable effects on the structure of PTFE membrane. PTFE membrane can be widely used in clothing with water resistant, air permeable, BC protective functions, and filtration.
【关键词】 PTFE薄膜;
拉伸;
开孔率;
防护服;
过滤;
【Key words】 PTFE membrane; stretching; porosity; protective clothing; filtration;
【Key words】 PTFE membrane; stretching; porosity; protective clothing; filtration;
【基金】 国家863计划资助项目(2002AA649280)
- 【文献出处】 膜科学与技术 ,Membrane Science and Technology , 编辑部邮箱 ,2005年04期
- 【分类号】TQ320.721
- 【被引频次】24
- 【下载频次】671