Anticorrosive filter paper and preparation method thereof

Abstract

The invention relates to anticorrosive filter paper and a preparation method thereof. The anticorrosive filter paper disclosed by the invention is composed of the following raw materials by weight: 60-70 parts of reed pulp, 35-40 parts of waste paper pulp, 10-15 parts of glass fibers, 10-14 parts of polyester fibers, 2-4 parts of polyacrylamide, 2-3 parts of glycerol, 2-4 parts of nano diatomite, 2-3 parts of sepiolite powder, 1-2 parts of alum powder, 1-2 parts of glycerol trioleate, 1-2 parts of borax, 1-2 parts of sodium silicate, 0.7-1 part of 3-glycidoxypropyl trimethoxysilane, 0.2-0.5 part of urotropine, 4-5 parts of rosin, 10-12 parts of absolute ethyl alcohol, 1-2 parts of ethylene bis(stearamide), 5-7 parts of nano zinc oxide, 0.1-0.2 part of phenethyl phenol polyoxyethylene ether, 0.2-0.3 part of ammonium persulfate and a proper amount of water. The urotropine added in the formula has relatively good anticorrosive performance, so that the filter paper provided by the invention can be used under the environments of acid, alkali and salt, cannot be corroded easily and enlarges the application scope of the filter paper.

Description

technical field [0001] The invention mainly relates to a filter paper, in particular to a filter paper for an anti-corrosion filter and a preparation method thereof. Background technique [0002] The engine has three types of filters: air, oil, and fuel, generally referred to as "three filters". They are respectively responsible for the filtration of the medium in the engine intake system, lubrication system and combustion system. Due to the large pore size, poor uniformity, and low filtration efficiency of traditionally produced filter paper, it cannot effectively filter out impurities harmful to the engine, causing early engine wear and tear. The impregnated emulsion for filter paper has now changed from alcohol-soluble to Water-soluble development, commonly used water-soluble impregnated emulsions such as polyvinyl acetate copolymer emulsion, styrene-acrylic emulsion and pure acrylic emulsion, among which styrene-acrylic emulsion is the most commonly used, but the fi...

AI Technical Summary

Problems solved by technology

Due to the large pore size, poor uniformity, and low filtration efficiency of traditionally produced filter paper, it cannot effectively filter out impurities harmful to the engine, causing early engine wear and tear. The impregnated emulsion for filter paper has now changed from alcohol-soluble to Water-soluble development, commonly used water-soluble impregnated emulsions such as polyvinyl acetate copolymer emulsion, styrene-acrylic emulsion and pure acrylic emulsion, among which styrene-acrylic emulsion is the most commonly used, but the filter paper film after impregnated with styrene-acrylic emulsion is relatively brittle , the adhesion to the surface of the fiber in the filter paper is not good, and the amount of functional monomer is large, the cost is high, especially the stiffness is not high and it cannot be degraded in the environment