High temperature resistant flame retardant filter paper used for diesel filter and preparation method thereof

Abstract

The invention discloses a high temperature resistant flame retardant filter paper used for a diesel filter and a preparation method thereof. The high temperature resistant flame retardant filter paper comprises the following raw materials in parts by weight: 60-70 parts of wood pulp celluloses, 30-40 parts of vinylon fibers, 10-15 parts of glass fibers, 2-5 parts of dolomite dust, 1-3 parts of nanometer titanium dioxide, 2-4 parts of light calcium carbonate, 1-2 parts of modified nano-carbon, 1-2 parts of nanometer titanium oxide, 0.5-0.8 part of ammonium dihydrogen phosphate, 3-4 parts of modified water-soluble phenolic resin emulsion, 2-5 parts of styrene-acrylic emulsion, 0.5-1 part of diethanolamide, 0.5-1 part of silane coupling agent KH550, 0.4-0.8 part of sodium laurylsulfate and 4-6 parts of a wet strength agent. The filter paper, prepared by the invention, has the advantages of good water permeability, large filtering area, small maximum aperture, high filtering precision, strong bursting strength, high temperature resistance and flame resistance, the filtering efficiency is 99.999%, the filter paper has stable performance index at normal temperature and high temperature, and better temperature resistance and filtering effect.

Description

technical field [0001] The invention relates to filter paper for a filter, in particular to a high-temperature resistant flame-retardant filter paper for a diesel filter and a preparation method thereof. Background technique [0002] Diesel filter is a kind of fuel filter. It is a device used to filter other solid impurities mixed in diesel. The filter element plays the role of filtering diesel. The filter element of diesel filter is mostly made of filter paper. , so the quality of the filter paper directly affects the efficiency of the filter element to filter diesel oil. The existing filter paper has poor adsorption and low filtration efficiency. It can only filter out 60% of the impurities in the oil, and the impurities that are larger or smaller than the pores of the paper filter element are all There is no permanent filtering effect, and it can only permanently filter out impurities that are equivalent to the micropores of the paper filter element and embedded in the mi...

AI Technical Summary

Problems solved by technology

[0002] Diesel filter is a kind of fuel filter. It is a device used to filter other solid impurities mixed in diesel. The filter element plays the role of filtering diesel. The filter element of diesel filter is mostly made of filter paper. , so the quality of the filter paper directly affects the efficiency of the filter element to filter diesel oil. The existing filter paper has poor adsorption and low filtration efficiency. There is no permanent filtering effect, and it can only permanently filter out impurities that are equivalent to the micropores of the paper filter element and embedded in the micropores of the paper filter element; in addition, the existing filter paper also has a short service life and poor high temperature resistance. , poor water resistance, low tensile strength and other shortcomings