High-strength high-temperature resistant oil filter paper and preparation method thereof

Abstract

The invention discloses high-strength high-temperature resistant oil filter paper and a preparation method of the high-strength high-temperature resistant oil filter paper. The high-strength high-temperature resistant oil filter paper is prepared from the following materials in parts by weight: 50-60 parts of softwood pulp, 20-30 parts of polybenzimidazole fibre, 20-30 parts of high silica glass fibre, 2-5 parts of modified sepiolite, 1-3 parts of lithopone, 2-4 parts of activated clay, 1-2 parts of nanometer titania, 0.5-0.8 parts of decabromodiphenyl ether, 2-3 parts of cationic polyacrylate latex, 0.5-1 part of glycerol triglyceride acid, 0.4-0.8 parts of diethanol amide, 0.5-1 part of vinyltriethoxysilane, 0.4-0.8 parts of sodium laurylsulfate and 2-5 parts of dialdehyde starch. The filter paper prepared by the method has the advantages of good water permeability, large filter area, small maximum aperture, high filter precision, 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 a high-strength and high-temperature-resistant engine oil filter paper and a preparation method thereof. Background technique [0002] The oil filter is a kind of fuel filter, which is located in the engine lubrication system. Its upstream is the oil pump, and its downstream is the parts that need to be lubricated in the engine. Its function is to remove harmful impurities in the oil from the oil pan. Filter out, supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other components with clean oil to lubricate, cool and clean, thereby prolonging the life of these components. The oil filter used The filter material is mostly made of filter paper, so the quality of the filter paper directly affects the efficiency of the filter element to filter the oil. The existing filter paper has poor adsorption and low filtration efficiency. It can only filter out 60% of the...

AI Technical Summary

Problems solved by technology

[0002] The oil filter is a kind of fuel filter, which is located in the engine lubrication system. Its upstream is the oil pump, and its downstream is the parts that need to be lubricated in the engine. Its function is to remove harmful impurities in the oil from the oil pan. Filter out, supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other components with clean oil to lubricate, cool and clean, thereby prolonging the life of these components. The oil filter used The filter material is mostly made of filter paper, so the quality of the filter paper directly affects the efficiency of the filter element to filter the oil. The existing filter paper has poor adsorption and low filtration efficiency. It can only filter out 60% of the impurities in the oil. The impurities in the micropores of the paper filter element cannot have a permanent filtering effect, and can only permanently filter out those impurities that are equal to the micropores of the paper filter element and embedded in the micropores of the paper filter element; at high temperatures, the filtration efficiency Even zero, which brings continuous secondary wear to the engine; in addition, the existing filter paper also has disadvantages such as poor high temperature resistance, poor water resistance, low tensile strength, low burst resistance, etc., thus limiting the service life of the filter paper