Automobile damping-controllable butadiene-acrylonitrile rubber-based magnetorheological elastomeric material and preparation method thereof

Abstract

The invention discloses an automobile damping-controllable butadiene-acrylonitrile rubber-based magnetorheological elastomeric material, which is composed of the following raw materials (by weight): 60-80 parts of butadiene-acrylonitrile rubber, 140-190 parts of tetrahydrofuran, 48-68 parts of maleic anhydride, 2-5 parts of benzoyl peroxide, a proper amount of ethanol, 2-4 parts of sodium hypophosphite hydroxide, a proper amount of xylene, 28-37 parts of softwood cellulose, 1-2 parts of stearic acid, 2-6 parts of carbon black, 1-2 parts of sulphur, a proper amount of deionized water, 1-3 parts of triethanolamine, 2-8 parts of nickel powder, a proper amount of NaOH aqueous solution and 3-7 parts of tetrabutyl titanate. By the use of maleic anhydride for grafting butadiene-acrylonitrile rubber and then compounding with softwood cellulose through grafting, damping property and sound absorption and noise reduction properties of the material are enhanced. Meanwhile, by adding titanium dioxide coated nickel core-shell structured metal particles, the prepared butadiene-acrylonitrile rubber-based magnetorheological elastomeric material has controllable damping performance and can be applied in the fields of vibration damping, noise reduction and the like.

Description

technical field [0001] The invention belongs to the field of automobile parts preparation, and in particular relates to a nitrile rubber-based magnetorheological elastic material with controllable damping for automobiles and a preparation method thereof. Background technique [0002] Damping material is a kind of shock-absorbing and noise-reducing material developed in recent years. It can convert vibration and sound energy into heat energy and dissipate new functional materials. It is widely used in various mechanical equipment, especially in the front of the car passenger compartment. There are 8-12 parts such as hoardings, car doors, car roofs, car floors, and trunks. Commonly used damping materials generally reduce vibration by storing and consuming vibration energy by themselves, lacking self-regulation capabilities. For this reason, a smart damping material with good controllability and nonlinear characteristics is urgently needed. [0003] Magnetorheological material...

AI Technical Summary

Problems solved by technology

[0002] Damping material is a kind of shock-absorbing and noise-reducing material developed in recent years. It can convert vibration and sound energy into heat energy and dissipate new functional materials. It is widely used in various mechanical equipment, especially in the f