Water and moisture resistant good-bursting-strength air filter paper for automobiles, and making method thereof

Abstract

The invention discloses a water and moisture resistant good-bursting-strength air filter paper for automobiles. The water and moisture resistant good-bursting-strength air filter paper is made by using the following raw materials, by weight, 45-48 parts of a softwood pulp, 47-51 parts of a cotton pulp, 3-4 parts of a glass fiber, 2-3 parts of crushed horseradish, 1-2 parts of calcium peroxide, 6-8 parts of a paraffin emulsion, 0.2-0.3 parts of dimethicone, 0.6-0.9 parts of n-dodecyltrimethoxysilane, 2-3 parts of zinc oxide, 2-3 parts of manganese dioxide, 0.4-0.6 parts of bean gum, 0.2-0.4 parts of sodium alginate, 3-4 parts of polyester polyol, 0.3-0.5 parts of an emulsifier OP-10, 1-2 parts of an assistant and a proper amount of water. The air filter paper has the advantages of solidness, durability, water and moisture resistance, good bursting strength and long service life; the manganese dioxide catalyst added in the invention can effectively remove toxic materials in air; and the addition of the assistant increases the porosity of filter paper, so adsorbed components are uniformly dispersed, the water resistance of the air filter paper is excellent, and the filtering performance of the air filter paper is improved.

Description

technical field [0001] The invention relates to the field of automobile filters, in particular to an air filter paper for automobiles with good water resistance, moisture resistance and burst resistance 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 the impurities in the oil; in addition, when the air filter paper is used in rainy and high humidity areas, the pape...

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 the impurities in the oil; in addition, when the air filter paper is used in rainy and high humidity areas, the paper filter layer After absorbing moisture, it will swell, which will reduce the pore size and porosity of the filter paper, resulting in the increase of filter resistance and the reduction of vehicle power. It also has the disadvantages of poor high temperature resistance, low tensile strength, and poor burst resistance, which limits the Service life of filter paper