Nitrile rubber-based magnetorheological elastic material prepared by compound modified clay and preparation method of nitrile rubber-based magnetorheological elastic material

Abstract

The invention discloses a nitrile rubber-based magnetorheological elastic material prepared by compound modified clay. The nitrile rubber-based magnetorheological elastic material comprises the following raw materials in parts by weight: 62 to 78 parts of nitrile rubber, 140 to 185 parts of tetrahydrofuran, 46 to 65 parts of maleic anhydride, 1 to 4 parts of peroxide benzoyl, an appropriate amount of ethanol, 2 to 4 parts of hydroxide sodium hypophosphite, an appropriate amount of xylene, 28 to 37 parts of softwood fiber, 1 to 2 parts of stearic acid, 3 to 6 parts of carbon black, 1 to 3 parts of sulfur, an appropriate amount of deionized water, 2 to 3 parts of triethanolamine, 4 to 8 parts of nickel powder, an appropriate amount of 6mol / L NaOH aqueous solution, 2 to 6 parts of tetrabutyl titanate, 2 to 7 parts of inorganic clay, 0.5 to 1 part of dodecyl trimethyl ammonium bromide, and 0.5 to 1 part of sodium dodecyl sulfonate. The maleic anhydride is grafted with the nitrile rubber and grafted and compounded with softwood fiber, so that the damping performance and sound absorption and noise reduction performance of the material are enhanced; the nitrile rubber-based magnetorheological elastic material prepared by metal particles added with a titanium dioxide coated nickel core-shell structure has controllable damping performance.

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 prepared by compounding modified clay 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 materials ar...

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 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