用流动孔隙测量术设计复合型过滤介质  

Design of Composite Filtration Media Using Flow Porometry

作　　者：Akshaya Jena Krishna Gupta 王向农 

机构地区：[1]PMI多孔材料公司

出　　处：《产业用纺织品》2001年第3期18-22,共5页Technical Textiles

摘　　要：为使过滤材料在使用中达到令人满意的性能 ,要求过滤介质具有适宜的孔径尺寸、孔径分布、孔体积、孔表面积及渗透性。在本项调研中 ,将过滤介质用流动孔隙测量术进行了特征化处理 ,然后用预先特征化处理过的过滤介质设计复合型过滤介质 ,并用流动孔隙测量术测试复合型过滤介质。测量并分析通过干样品和湿样品的气体压力和流量 ,由此得出最大孔径尺寸、孔径分布及渗透性。数据表明 ,具有独特特征的复合型过滤介质可以通过合理挑选预先特征化处理过的过滤介质来制备。Filtration media is required to have suitable pore size, pore size distribution, pore volume, pore surface area and permeability for performing satisfactorily in applications. In this investigation, the filtration media has be characterized by flow porometry, used these pre characterized filtration media to design composite filtration media, and tested these composites by flow porometry. Gas pressure and flow rates through wet and dry samples are measured and analyzed to obtain the largest pore size, the pore size distribution and permeability. It was shown that composite filtration media possessing unique characteristics could be prepared by a logical selection of pre characterized filtration media.

关 键 词：复合型过滤介质 设计 流动孔隙测量 过滤材料 非织造布 滤布 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]