Adhesive film for filter

Abstract

The invention relates to the technical field of filters, in particular to an adhesive film for a filter, which comprises the following raw material components in percentage by mass based on the total mass of the adhesive film: 40 to 56 percent of acrylonitrile-butadiene rubber, 20 to 38 percent of tripolycyanamide modified phenolic resin, 0.1 to 0.5 percent of vulcanization accelerator, 2 to 8 percent of calcium carbonate, 1 to 6 percent of calcium sulfate, 1 to 2 percent of zinc oxide, 3 to 5 percent of softening oil, 0.5 to 1 percent of sulfur and 0.5 to 1 percent of rubber anti-aging agent. In the invention, the film adhesive made of modified rubber is used for bonding a filter, and the film adhesive is characterized by high / low-temperature resistance, corrosion resistance, radiation resistance, damp and leakage prevention, high electric insulation property, high weather resistance and high aging resistance, the adhesive film is nontoxic and odorless, and after being the adhesive film is cured, the surface of the adhesive film is flat, very tough and shockproof, the damage to the filter in transportation and installation is eliminated; therefore, the adhesive film is suitable for the filter and also suitable for adhering metal, plastic, rubber, glass, ceramic and other materials.

Description

Technical field: [0001] The invention relates to the technical field of filters, in particular to an adhesive film for filters. Background technique: [0002] According to relevant data from the Automobile Industry Yearbook, in 2007, China's automobile sales reached 8.7915 million units. In 2008, the production and sales volume of automobiles exceeded 9 million. In the case of the rapid growth of the market size of the automobile industry, as the main supporting industry of the automobile industry, China's filter industry is facing important opportunities. [0003] The engine has three types of filters: air, oil, and fuel, generally referred to as "three filters". They are respectively responsible for the filtration of the medium in the engine intake system, lubrication system and combustion system. The filter is originally used to filter harmful impurities so that the engine can work normally under various working conditions and can reach the specified service life. Howe...

AI Technical Summary

Problems solved by technology

However, products with unqualified original filtration efficiency cannot effectively filter out dust and impurities harmful to the engine, which will cause early wear and tear of the engine of the motor vehicle, reduce service life, endanger the engine and even cause accidents

There are two main reasons for the failure of the filter: one is that the quality of the filter paper, the main raw material used to manufacture the filter, is not good, the pore size is too large, the thickness is uneven, or the number of folds of the filter paper is too small, and the fold width is too small. It cannot play the proper filtering effect, or the strength of the filter paper is too low, and it will be broken after a certain flow of air, and the filtration efficiency will be greatly reduced

The second is that the gluing process in production is not well mastered, or the quality of the adhesive itself is not good, so that the seal between the filter paper and the end cover cannot be maintained, so that dust flows through the gap

The traditional chlorinated rubber method, isocyanate method and other technologies can no longer meet the new requirements, and new adhesives are needed to improve the quality of rubber composite products