Air-filtration paper for automobile engine filter and preparation method of air-filtration paper

Abstract

The invention discloses air-filtration paper for an automobile engine filter and a preparation method of the air-filtration paper. The air-filtration paper for the automobile engine filter is prepared from the following materials in parts by weight: 60-70 parts of hardwood pulp, 30-40 parts of cotton pulp, 10-15 parts of modified polyester fiber, 2-5 parts of nanocarbon, 1-3 parts of kaolin, 1-2 parts of lime milk, 2-4 parts of modified zealite sieve, 0.5-0.8 parts of water talcum powder, 3-4 parts of polyacrylic emulsion, 2-5 parts of polyvinyl acetate emulsion, 0.5-1 part of sodium laurylsulfate, 0.5-1 part of silane coupling agent DL171, 0.4-0.8 parts of sodium laurylsulfate and 4-6 parts of dialdehyde starch. The filtration paper prepared by the method has the advantages of good water permeability, large filter area, small maximum aperture, high filter precision, high water tolerance, strong bursting strength, thermostability and the like, has a stable performance index at a normal temperature under a high-temperature work condition, and has better effects of temperature resistance and filtering, and filtering efficiency can be up to 99.98%.

Description

technical field [0001] The invention relates to filter paper for a filter, in particular to an air filter paper for an automobile engine filter and a preparation method thereof. Background technique [0002] Automobile air filter paper is the core material for manufacturing automobile engine air filters. Since the air filter is located in the intake system of the engine, and the engine usually emits a lot of heat when it is working, it is generally hoped that this air filter medium has good performance. Excellent filtration performance and high filtration efficiency, as well as certain high temperature resistance, water resistance and burst resistance. The existing filter paper has poor adsorption and low filtration performance, which leads to low filtration efficiency and can only filter out 50-60% of impurities in the oil; in addition, the existing filter paper also has poor high temperature resistance, poor water resistance, and poor tensile strength. Shortcomings such a...

AI Technical Summary

Problems solved by technology

The existing filter paper has poor adsorption and low filtration performance, which leads to low filtration efficiency and can only filter out 50-60% of impurities in the oil; in addition, the existing filter paper also has poor high temperature resistance, poor water resistance, and poor tensile strength. Shortcomings such as low and poor burst resistance limit the service life of filter paper