Environmentally-friendly damping rubber sheet

A damping and film technology, applied in the coating and other directions, can solve the problem of air quality pollution in the car, and achieve the effect of improving the bonding performance and strength, ensuring high viscosity and high damping performance

Pending Publication Date: 2019-12-06
长春和成汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In March 2013, the CCTV quality report program exposed that the three major luxury car brands used asphalt dampers, which caused serious air pollution in the car

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] An environment-friendly damping film, the parts by weight of petroleum resin, butyl rubber, polyisobutylene, deodorant, and filler are:

[0015] Petroleum resin 10%, butyl rubber 3%, polyisobutylene 3%, deodorant 2%, filler 72%.

[0016] Preparation process: (1) Weighing: weigh a certain amount of oleoresin, butyl rubber, polyisobutylene, deodorant, and filler according to the formula ratio;

[0017] (2) Synthesis: Put petroleum resin, polyisobutylene, and deodorant into the kneader, stir at 140°C for 20 minutes, add filler, and continue stirring for 40 minutes to obtain a mixture;

[0018] (3) Calendering: pressing the mixture obtained in step (2) into sheets or injection molding;

[0019] (4) Punching: Send the sheet obtained in step (3) into the punching machine and punch it according to the mold required by the part to obtain the punched sheet;

[0020] (5) Coating the release layer: the surface of the punched piece obtained in step (4) is coated with a release ag...

Embodiment 2

[0022] An environment-friendly damping film, the parts by weight of petroleum resin, butyl rubber, polyisobutylene, deodorant, and filler are:

[0023] Petroleum resin 15%, butyl rubber 10%, polyisobutylene 10%, deodorant 5%, filler 60%.

[0024] making process:

[0025] (1) Weighing: Weigh a certain amount of oleoresin, butyl rubber, polyisobutylene, deodorant, and filler according to the formula ratio;

[0026] (2) Synthesis: Put petroleum resin, polyisobutylene, and deodorant into a plastic mixer, stir at 160°C for 40 minutes, add filler, and continue stirring for 60 minutes to obtain a mixture;

[0027] (3) Calendering: pressing the mixture obtained in step (2) into sheets or injection molding;

[0028] (4) Punching: Send the sheet obtained in step (3) into the punching machine and punch it according to the mold required by the part to obtain the punched sheet;

[0029] (5) Coating the release layer: the surface of the punched piece obtained in step (4) is coated with a...

Embodiment 3

[0031] An environment-friendly damping film is characterized in that the parts by weight of the petroleum resin, butyl rubber, polyisobutylene, deodorant and filler are:

[0032] Petroleum resin 20%, butyl rubber 20%, polyisobutylene 20%, deodorant 10%, filler 30%.

[0033] making process:

[0034] (1) Weighing: Weigh a certain amount of oleoresin, butyl rubber, polyisobutylene, deodorant, and filler according to the formula ratio;

[0035] (2) Synthesis: Put petroleum resin, polyisobutylene, and deodorant into a plastic mixer, stir at 200°C for 80 minutes, add filler, and continue stirring for 80 minutes to obtain a mixture;

[0036] (3) Calendering: pressing the mixture obtained in step (2) into sheets or injection molding;

[0037] (4) Punching: Send the sheet obtained in step (3) into the punching machine and punch it according to the mold required by the part to obtain the punched sheet;

[0038] (5) Coating the release layer: the surface of the punched piece obtained ...

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PUM

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Abstract

The invention discloses an environmentally-friendly damping rubber sheet, which comprises a damping rubber layer comprising 10-20% by mass of a petroleum resin, 3-20% by mass of a butyl rubber, 3-20%by mass of polyisobutene, 2-10% by mass of a deodorant and the balance of a filler, wherein an isolation layer is arranged on an isolation layer. The preparation method comprises: (1) weighing the materials; (2) synthesizing; (3) calendering; (4) blanking; and (5) coating with an isolation layer, and loading into a packaging box. According to the present invention, the butyl rubber with high damping performance is used as the matrix, and the adhesive property and the strength of the rubber sheet are improved by adopting the viscous resin and the filler, such that the high damping performance of the whole damping rubber sheet in a relatively wide range is ensured while the high viscosity of the damping rubber sheet is ensured; and the selected materials are odorless at a normal temperature,and have weak odor at a temperature of 60-80 DEG C, such that the odor problem of the product can be solved by adding 2-5% of the chelating deodorant.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an environment-friendly damping film. Background technique [0002] The damping sheet is a kind of viscoelastic material attached to the inner surface of the car body, and it is close to the steel plate wall of the car body, mainly to reduce noise and vibration, that is to say, to play a damping role. All cars are equipped with damping sheets, such as Mercedes-Benz, BMW and other brand cars. In addition, aerospace vehicles, airplanes and other machinery that require shock absorption and noise reduction will also use damping sheets. In March 2013, the CCTV quality report program exposed that the three major luxury car brands used asphalt dampers, which caused serious air pollution in the car. In order to solve the impact of benzene, aldehyde and odor volatilization on asphalt damping boards on the health of people in the car, a damping film without asphalt was invented. The hot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L57/02C08L23/22C08L23/20C08K3/34C08K7/26C08K7/02C08K3/01C08J7/04
CPCC08J5/18C08J7/04C08J2357/02C08J2323/22C08J2323/20C08J2457/02C08J2423/22C08J2423/20C08K2201/01C08K3/34C08K7/26C08K7/02C08K3/01
Inventor 罗仁
Owner 长春和成汽车零部件有限公司
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