Use of asymmetric polypropylene porous membrane

Abstract

The invention belongs to polypropylene porous membrane field, especially relates to a use of unsymmetrical polypropylene porous membrane. The unsymmetrical polypropylene porous membrane can be used for isolating oil and stain, especially for isolating edible oil and stain. The porous surface of the unsymmetrical polypropylene porous membrane has micropores interpenetrating from the film surface through the main body and another film surface has no micropores or a little micropores. The unsymmetrical polypropylene porous membrane can be used as oil stain barrier material using the theory that:the porous surface of the unsymmetrical polypropylene porous membrane can absorb a large amount of oil fume granules, but the oil fume granules can not interpenetrate another surface without micropores or a little micropores. The unsymmetrical polypropylene porous membrane can make the cleaning oil and stain more simply and thoroughly, and effectively solve the problem of cleaning oil and stain of kitchen sanitary installation such as oil pumping machine and protect the device or installation from being polluted and corraded by oil and stain.

Description

Use of asymmetric polypropylene porous membrane technical field The invention belongs to the field of polypropylene porous membranes, in particular to the application of asymmetric polypropylene porous membranes. Background technique At present, the cleanliness of greasy dirt in the kitchen, such as the cleaning of range hoods, exhaust fans and other sanitation facilities, has always been troublesome. It is difficult to remove these kitchen and bathroom facilities after they are stained with oil, which brings great inconvenience to use. At the same time, oil stains contain carcinogens and aging agents, which can also cause harm to human health. Up to now, wet cleaning has been mostly used for oil removal. Wastewater from wet cleaning still contains dissolved carcinogens and aging agents. When these sewage spills on kitchen utensils, tableware or stain on skin, can cause very big threat to people's health. At the same time, it is also difficult to clean the oil stains t...

AI Technical Summary

Problems solved by technology

However, these methods have some shortcomings: the organic solvent volatilized during the film formation of the solution may cause harm to the human body; at the same time, it is difficult to control the spraying of small areas

Images