High-temperature resistant fiber filter paper for engine oil filter and preparation method of high-temperature resistant fiber filter paper

Abstract

The invention discloses high-temperature resistant fiber filter paper for an engine oil filter and a preparation method of the high-temperature resistant fiber filter paper. The high-temperature resistant fiber filter paper comprises, by weight, 60-70 parts of coniferous wood pulp, 20-30 parts of cotton pulp, 20-30 parts of modified polyimide fiber, 2-5 parts of kaoline, 1-3 parts of lithopone, 2-4 parts of silica gel, 1-2 parts of nanometer titania, 0.5-0.8 part of ammonium polyphosphate, 1-2 parts of modified acrylic emulsion, 2-4 parts of acetic styrene-acrylic emulsion, 0.5-1 part of stearic acid monoglyceride, 0.5-1 part of silane coupling agent KH590, 0.4-0.8 part of sodium lauryl sulfate, and 2-5 parts of urea resin. The high-temperature resistant fiber filter paper prepared is good in water permeability, large in filtering area, small in maximum hole diameter, high in filtering precision, strong in bursting strength, high in temperature resistance and the like, has stable performance index under normal-temperature and high-temperature working conditions and is provided with good temperature resistance and filtering effects, and filtering efficiency of the high-temperature resistant fiber filter paper can reach 99.97%.

Description

technical field [0001] The invention relates to filter paper for a filter, in particular to a high-temperature-resistant fiber filter paper for an engine oil filter 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 t...

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, thus bringing continuous secondary wear to the engine; in addition, the existing filter paper also has the disadvantages of short service life, poor high temperature resistance, poor water resistance, and low tensile strength.