Double-layer shock-absorbing damping plate for automobile and production method thereof

Abstract

The invention provides a double-layer damping plate for a vehicle and a preparation method thereof. The double-layer damping plate is formed by laminating a face plate and a base plate, wherein the face plate is prepared by using rubber as a main material, and a formulation for the main material comprises the following components: 13 to 18 percent of high phenethylene, 7 to 10 percent of natural rubber, 2 to 5 percent of petroleum resin, 20 to 30 percent of talcum powder, 20 to 30 percent of calcium carbonate powder, 0.06 percent of stearic acid, 0.08 to 0.5 percent of M accelerant, 0.3 to 0.5 percent of sulfur, 1.2 percent of mica, 5 to 20 percent of calcium oxide, 1 to 3 percent of machine oil, and 0.12 to 1 percent of carbon black. The base plate is prepared by using asphalt as a main material, and a formulation for the main material comprises the following components: 20 to 30 percent of No.10 asphalt, 5 to 15 percent of No.90 asphalt, 6 to 10 percent of mica, 25 to 40 percent of talcum powder, 8 to 15 percent of aedelforsite powder, 4 to 10 percent of SBS thermoplastic material, 4 to 7 percent of rubber powder, 0.5 to 3 percent of petroleum resin, and 0.5 to 2 percent of random polypropylene. The face plate and the base plate are manufactured respectively, the upper surface of the base plate or the lower surface of the face plate can be coated with pressure-sensitive adhesive or hot melt adhesive, and the face plate and the base plate are adhered first and then bound by a staple on the periphery. The double-layer damping plate for the vehicle has better damping and sound insulating performances than a single-layer damping plate, the raw materials for preparation are easily purchased, and the process can achieve scale production.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and relates to a shock-absorbing and damping material for the bottom of an automobile, in particular to a double-layer shock-absorbing and damping plate used for the bottom of a luxury car and a preparation method thereof. Background technique [0002] At present, the damping plate used for the bottom of small passenger cars is usually a single-layer damping plate made of asphalt as the main material. Although its manufacturing process is relatively simple and the raw material price is low; its shock absorption and sound insulation effects are poor. The damping performance is not ideal, so it is not suitable for high-end cars with high requirements for shock absorption and sound insulation. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides a double-layer shock-absorbing damping plate for vehicles with good shock-absorbing...

AI Technical Summary

Problems solved by technology

[0002] At present, the damping plate used for the bottom of small passenger cars is usually a single-layer damping plate made of asphalt as the main material. Although its manufacturing process is relatively simple and the raw material price is low; its shock absorption and sound insulation effects are poor. The damping performance is not ideal, so it is not suitable for high-end cars with high requirements for shock absorption and sound insulation