A super-oleophobic filter and its manufacturing method and an oil separator with the super-oleophobic filter

摘要

The present invention relates to an oleophobic filter which can be mounted on an oil separator of an internal combustion engine and used. It also relates to an oil separator equipped with the oleophobic filter. According to an embodiment of the present invention, a method of manufacturing an oleophobic filter, comprising: providing a metal filter; Forming a fine concavo-convex structure by dipping the metal filter in an acidic solution to chemically etch the filter surface to form fine concavo-convex with a size of several μm; And forming a micro hole in the order of several nm by forming an oxide film on the metal filter on which the fine concavo-convex is formed by an anodization method. A method of manufacturing an oleophobic filter is provided.