Self-lubricating rubber lifting lug with function of improving NVH (noise, vibration and harshness) performance of automobile and preparation method of self-lubricating rubber lifting lug

Abstract

The invention discloses a self-lubricating rubber lifting lug with a function of improving NVH (noise, vibration and harshness) performance of an automobile and a preparation method of the self-lubricating rubber lifting lug. The rubber lifting lug is prepared from raw materials as follows: EPDM (ethylene propylene diene monomer) rubber, chlorinated butyl rubber, nitrile rubber, EVA (ethylene vinyl acetate copolymer) resin, a lubricant, a vulcanizing agent, an anti-aging agent, glass fiber, calcined pottery clay, white carbon black, hydroxyethyl cellulose, tetramethyl thiuram disulfide, microencapsulated red phosphorus, epoxidized soybean oil, tributyl citrate and phosphamide. According to the self-lubricating rubber lifting lug with the function of improving NVH performance of the automobile and the preparation method of the self-lubricating rubber lifting lug, the product can effectively improve the NVH performance of the automobile, has good mechanical properties such as hardness, tensile strength, elasticity, toughness and the like, and has good wear resistance, heat resistance, aging resistance, corrosion resistance, flame retardance and self-lubrication property, performance is stable and lasting, the assembly efficiency is high, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a self-lubricating rubber lug for improving the NVH performance of automobiles and a preparation method thereof. Background technique [0002] NVH is the English abbreviation of Noise, Vibration, Harshness (Noise, Vibration, Harshness). This is a comprehensive problem to measure the quality of automobile manufacturing. It gives the most direct and superficial feeling to car users. The NVH problem of vehicles is one of the concerns of major vehicle manufacturers and parts companies in the international automobile industry. According to statistics, about 1 / 3 of the failure problems of the whole vehicle are related to the NVH problem of the vehicle, and nearly 20% of the research and development costs of major companies are spent on solving the NVH problem of the vehicle. Rubber materials have good damping, shock absorption and other properties, which can make the rubber l...

AI Technical Summary

Problems solved by technology

At present, most of the rubber lugs used in the exhaust system use pure rubber lugs, or the inner hole is oiled or a single lubricant is added to the rubber formula. The disadvantages of these technologies are that the pure rubber lugs are not easy to assemble, the assembly efficiency is low, and the inner hole Oil-coated products increase the post-process, increase the cost, the appearance of the product is oily, and the stability of the lifting lug is poor when adding a single lubricant. Often after a period of use, the lubricant on the surface of the inner hole of the product will cause abnormal noise and failure.