ITPub博客

PropertiesFilter paper comes in various porosities and grades depending on the applications it is meant for. The important parameters are wet strength, porosity, particle retention, flow rate, compatibility, efficiency and capacity.There are two mechanisms of filtration with paper; volume and surface. By volume filtration the particles are caught in the bulk of the filter paper. By surface filtration the particles are caught on the paper surface.ManufactureMain article: Paper machineThe raw mate

滤纸是一种具有良好过滤性能的纸，纸质疏松，对液体有强烈的吸收性能。分析实验室常用滤纸作为过滤介质，使溶液与固体分离。目前我国生产的滤纸主要有定量分析滤纸，定性分析滤纸和层析定性分析滤纸三类。定量滤纸和定性滤纸这两个概念都是纤维素滤纸才有的，不适用于其它类型的滤纸如玻璃微纤维滤纸。定性滤纸用于定性化学分析和相应的过滤分离。定性滤纸一般用于过滤溶液，做氯化物、硫酸盐等不需要计算数值的定性试验；而定量滤纸是用于精密计算数值的过滤，如测定残渣、不溶物等，一般定量滤纸过滤后，还需进入高温炉作处理。 滤纸过