Glass fiber-containing highly waterproof air filter paper and making method thereof

Abstract

The invention discloses a glass fiber-containing highly waterproof air filter paper. The glass fiber-containing highly waterproof air filter paper is made by using the following raw materials, by weight, 46-48 parts of a Bambusa textilis pulp, 52-54 parts of a mulberry bark pulp, 1-2 parts of dried oleander leaf, 0.7-0.9 parts of oleic acid, 0.4-0.5 parts of flaxseed gum, 0.3-0.5 parts of starch wheat, 3-4 parts of montmorillonite, 1-2 parts of cerium oxide, 1-2 parts of chopped glass fiber, 1-2 parts of molybdenum dioxide, 5-7 parts of polyamine epichlorohydrin resin, 3-5 parts of a vinyl acetate-acrylic emulsion, 0.3-0.4 parts of polyvinyl alcohol, 0.2-0.4 parts of a paraffin emulsion, 1-2 parts of an assistant and a proper amount of water. Cerium oxide added in the invention has a catalysis performance and can purify air; the addition of the chopped glass fiber improves the waterproof performance; and the assistant added in the invention is safe and environmentally-friendly, and forms tiny apertures on the surface of filter paper, so the adsorptivity is increased, and the filter paper has a waterproof property. The filter paper has the advantages of small filtering resistance, high efficiency, waterproof property, moisture resistance, and high wet stiffness.

Description

technical field [0001] The invention relates to the field of automobile filters, in particular to a highly water-resistant air filter paper containing glass fibers 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 paper filter layer After absorbing moistur...

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