聚四氟乙烯针刺过滤材料蠕变性能的研究  

Study on the Croop Property of PTFE Needle-punched Nonwoven Filter Material

作　　者：王伟莎[1] 吴海波[1] 

机构地区：[1]东华大学纺织学院非织造材料与工程系,上海201620

出　　处：《过滤与分离》2013年第1期17-20,共4页Journal of Filtration & Separation

基　　金："十二五"国家科技支撑计划

摘　　要：对纯PTFE带基布针刺非织造滤料在常温20℃下四级不同载荷的蠕变行为及在180℃以上高温下蠕变行为进行测试,通过对实验数据进行处理分析,得到常温下蠕变曲线,该曲线与典型蠕变曲线基本吻合;该材料在220℃以上时,即使在较小的载荷下,也会短时间内出现较大的变形并断裂,故该材料不适合在220℃以上温度下使用。The creep behavior of pure PTFE needle-punched nonwoven filter material was tested under four different loads at the normal temperature of 20℃ and as well as at high temperature above 180℃. The creep curve at normal temperature was obtained by analyzing the experimental dates, which agreed with the typical one. When the temperature was above 220℃, the sample would occur large deformation and rupture in a short time even under a small load, so the material was not suitable for use in the temperature more than 220℃.

关 键 词：纯PTFE带基布针刺滤料 蠕变 荷载 高温 

分 类 号：TS176.3[轻工技术与工程—纺织材料与纺织品设计]