High-temperature-resistant abrasion-resistant macromolecule shock-absorption rubber for vehicles, preparation method of high-temperature-resistant abrasion-resistant macromolecule shock-absorption rubber, and preparation method of automobile exhaust pipe lug

Abstract

The invention discloses high-temperature-resistant abrasion-resistant macromolecule shock-absorption rubber for vehicles, a preparation method of the high-temperature-resistant abrasion-resistant macromolecule shock-absorption rubber, and a preparation method of an automobile exhaust pipe lug. The preparation method of the high-temperature-resistant abrasion-resistant macromolecule shock-absorption rubber comprises the following steps of conveying the following components in parts by mass of 60-70 parts of ethylene propylene diene monomer and 30-40 parts of silica gel into a banbury mixer, andperforming stirring and mixing; then adding 5-20 parts of zinc oxide, 1-3 parts of stearic acid, 0.1-0.5 part of essence, 3-8 parts of an abrasion-resistant agent, 1-4 parts of microcrystalline wax,0.2-1 part of an antioxidant, 2-4 parts of a common flow dispersing agent and 1-5 parts of Coumarone-indene resin, and then performing plastication for 50-70s; and then adding 30-50 parts of carbon black N550, 20-60 parts of carbon black N330 and 2-5 parts of paraffin oil, performing banbury warming, rubber discharging, roll mixing and cooling, then pouring milled glue into a banbury mixer, performing mixed warming, then adding 1-3 parts of insoluble sulfur, 1-5 parts of a vulcanizing agent and 1-3 parts of an accelerant, performing warming milling, and then performing rubber discharging and roll mixing once again. The obtained shock-absorption rubber and a metallic framework are subjected to vulcanization and shaping in a mold, so that the automobile exhaust pipe lug is prepared.

Description

technical field [0001] The invention belongs to the technical field of automobile shock absorption, and in particular relates to a high-temperature-resistant and wear-resistant polymer shock-absorbing rubber for automobiles, a preparation method thereof, and a preparation method of automobile exhaust pipe hangers. Background technique [0002] The exhaust pipe hanger is the shock absorbing part of the automobile exhaust system, which can effectively reduce the vibration and noise inside the car caused by the excitation of the exhaust system. However, the automobile exhaust system is always in a high-temperature environment, and the rubber body is always in a state of friction during the shock absorption process. As the use time increases, the rubber body will experience problems such as increased hardness, tensile fracture, and wear and tear at the installation point, making the exhaust The overall performance of the pipe lifting lug is greatly reduced, which in turn affects...

AI Technical Summary

Problems solved by technology

However, the automobile exhaust system is always in a high-temperature environment, and the rubber body is always in a state of friction during the shock absorption process. As the use time increases, the rubber body will experience problems such as increased hardness, tensile fracture, and wear and tear at the installation point, making the exhaust The overall performance of the pipe lifting lug is greatly reduced, which in turn affects the user's satisfaction with the car product - driving comfort even causes the exhaust pipe to fall off, causing safety accidents

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