Damping rubber, preparation method of damping rubber and damping rubber member for vehicle

Abstract

The invention relates to a hydroxyl-terminated polybutadiene damping rubber material. The hydroxyl-terminated polybutadiene damping rubber material comprises, by weight, 0.5-5 parts of a vulcanizing agent, 5-30 parts of hydroxyl-terminated polybutadiene, 20-100 parts of a strengthening agent, 5-20 parts of a plasticizer, 2-10 parts of a chemical antiager, 0.5-3.5 parts of a wax antiager, 2.5-13 parts of a sulfuration activator, and 0.5-8 parts of a promoter. Preferably, the hydroxyl-terminated polybutadiene damping rubber material also comprises 1-5 parts by weight of thiocyanuric acid. The invention also discloses a preparation method of the damping rubber material. The damping rubber material can be used in a damping rubber product for a vehicle, has good antifatigue performances, greatly prolongs a service life and reduces finished product use.

Description

technical field [0001] The invention relates to shock-absorbing rubber and a preparation method thereof, belonging to the field of rubber. Background technique [0002] With the development of modern industry, vibration and noise have become serious problems in various fields: reducing operation accuracy, affecting product quality, shortening product life, and endangering safety. In order to reduce or even eliminate vibration, various shock-absorbing products, especially rubber shock-absorbing products, are often used in practice. It can effectively isolate the vibration and the excitation source, and can also moderate the vibration of the vibrating body, so it is widely used in the vibration isolation of various motor vehicles, aircraft, ships and other power machinery. [0003] For shock-absorbing rubber for general applications, it is usually necessary to add a certain amount of reinforcing agent, usually various carbon black and silica, to obtain the corresponding stren...

AI Technical Summary

Problems solved by technology

[0002] With the development of modern industry, vibration and noise have become serious problems in various fields: reducing operation accuracy, affecting product quality, shortening product life, and endangering safety

[0003] For shock-absorbing rubber for general applications, it is usually necessary to add a certain amount of reinforcing agent, usually various carbon black and silica, to obtain the corresponding strength and damping properties. Under the action of tensile and compressive forces, the stress relaxation generated in the material is often too late to be completed within the deformation cycle. As a result, the internal stress is too late to disperse, and the cross-linking bonds between rubber molecules are destroyed, resulting in large changes in the properties of rubber products. Decrease in fatigue performance