Automobile oil filter sealing ring and production process thereof

Abstract

The invention discloses an automobile oil filter sealing ring and a production process thereof, and relates to the technical field of filters. The production process comprises the following steps of: adding isophorone diisocyanate and a catalyst into a four-neck flask, dropwise adding a toluene solution of hydroxyl-terminated polybutadiene to obtain an intermediate A, and adding an antioxidant 300 into the intermediate A to obtain an anti-aging agent; and drying white carbon black in a vacuum oven, dissolving the dried white carbon black in absolute ethyl alcohol, carrying out ultrasonic dispersion to obtain a product A, adding and dissolving a silane coupling agent Si69 and a catalyst into absolute ethyl alcohol, and adding the solution into the product A to obtain a product D. The problem that an existing automobile oil filter sealing ring is poor in mechanical property, prone to aging and short in service life is solved. Carbamate is not strong in free radical capturing capability, but after the carbamate interacts with the hindered phenol, the carbamate can have better free radical capturing capability like the hindered phenol, and a synergistic anti-oxidation effect is realized, so that the anti-aging purpose is realized.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to a sealing ring of an automobile engine oil filter and a production process thereof. Background technique [0002] During the working process of the engine, metal wear debris, dust, carbon deposits oxidized at high temperatures, colloidal sediments, water, etc. are continuously mixed into the lubricating oil. The function of the oil filter is to filter out these mechanical impurities and colloids and keep the lubricating oil Cleaning and prolonging its service life, the sealing ring of the oil filter is a rubber ring with a circular cross section to prevent the leakage of lubricating oil and the intrusion of foreign objects; [0003] But the sealing ring of existing automobile oil filter, because a large amount of heat is produced during engine work, engine air filter is in high-temperature state, and lasting high temperature causes sealing ring aging, and sealing effect is reduce...

AI Technical Summary

Problems solved by technology

[0006] (1) By drying the white carbon black in a vacuum oven, dissolving it in absolute ethanol, and dispersing it with ultrasonic waves, the product A is obtained. Add the silane coupling agent Si69 and the catalyst to dissolve in absolute ethanol, and then add In the product A, the product D is obtained, and the natural rubber, zinc oxide, stearic acid, accelerator and sulfur are mixed uniformly, and the product D is added to obtain a blend, and the blend is added to an open mill for mixing and vulcanization. The modified rubber is obtained, and the problems of poor mechanical properties and short service life of the sealing ring of the existing automobile oil filter are solved by using the modified rubber;

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