Filter filtering paper and preparation method thereof

Abstract

The invention discloses an environment-friendly efficient filter filtering paper. The environment-friendly efficient filter filtering paper is prepared by the following raw materials in part by weight: 40-50 parts of softwood pulp, 30-40 parts of waste paper pulp, 20-30 parts of high-silica glass fiber, 2-5 parts of modified vermiculite, 1-3 parts of zeolite molecular sieve, 2-4 parts of nanometer calcium, 1-2 parts of modified pulverized fuel ash, 2-3 parts of water-solubility organic silicon resin emulsion, 1-2 parts of water-solubility polytetrafluoroethylene emulsion, 0.5-0.8 parts of ammonium polyphosphate, 3-4 parts of glycerol triacetate, 0.5-1 parts of diethanolamide, 0.5-1 parts of silane coupling agent KH560, 0.4-0.8 parts of sodium dodecyl sulfate, 0.5-1 parts of antioxidant DSTP, and 4-6 parts of polyethylenimine. The filtering paper prepared by the method provided by the invention has the advantages of being good in water permeability, large in filtering area, small in maximum diameter of hole, high in filtering precision, strong in bursting strength, high-temperature-resistant, good in water resistance and the like, can achieve the filtering efficiency by 99.98%, has stable performance index at atmospheric and high-temperature working conditions, as well as better temperature resistance and filtering effects.

Description

technical field [0001] The invention relates to a filter paper, in particular to a filter paper and a preparation method thereof. Background technique [0002] Filter paper is the filter material for the car filter. It is generally used inside the engine to filter impurities in the air, oil and fuel. People often refer to the engine as the "heart" of the car. Then, the filter The cleaner is the "lung" of the car, which is responsible for removing impurities, preventing engine parts from wearing out and prolonging their life. The filter material of automobile filter is mostly filter paper, so the quality of the filter paper directly affects the filtration efficiency of the filter. The existing filter paper has the following disadvantages: [0003] (1) Low filtration efficiency and poor filtration accuracy lead to low filtration efficiency of the filter, which can only filter out 50-60% of impurities; [0004] (2) Poor properties such as high temperature resistance, water re...

AI Technical Summary

Problems solved by technology

[0003] (1) Low filtration efficiency and poor filtration accuracy lead to low filtration efficiency of the filter, which can only filter out 50-60% of impurities;

[0004] (2) Poor properties such as high temperature resistance, water resistance, and burst resistance, resulting in short service life;

[0005] (3) Large fluctuations in quality and poor stability