Sound-insulating pad used inside automobile and preparation process of sound-insulating pad

A technology for automobile interior and preparation process, applied in vehicle parts, layered products, transportation and packaging, etc., can solve problems such as lack of good sound absorption effect, and achieve the effect of good air permeability, isolation of audio environment, and improved effect.

Inactive Publication Date: 2016-05-04
WUHU XINYUAN SPONGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the sound insulation pads used inside cars are ordinary rubber pads. Although they can indeed play a sound insulation effect, they do not have a good sound absorption effect. A good sound absorption effect can eliminate the resonance of the car metal, thereby making the audio environment in the car better

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The sound-insulating pad for automobile interior of the present embodiment is formed by bonding the sound-absorbing layer and the sound-insulating layer with adhesive glue, and the sound-absorbing layer is made of the following raw materials in proportions by weight: 30 parts of bamboo charcoal fiber, 50 parts of hemp fiber, polyester 20 parts of ester fiber, 10 parts of glass fiber; the sound insulation layer is made of the following raw materials in parts by weight: 40 parts of nitrile rubber, 20 parts of alumina powder, 10 parts of quartz powder, 0.3 parts of sulfur, 0.2 parts of di-o-tolueneguanidine 0.1 part of dioctyl phthalate, 0.2 part of N-phenyl-N`-isopropyl-p-phenylenediamine, 1 part of chlorinated paraffin, 2 parts of antimony trioxide, 0.2 part of azodicarbonamide part, 0.1 part of sodium bicarbonate; adhesive glue is made from the following raw materials in parts by weight: 50 parts of silicone rubber adhesive.

Embodiment 2

[0019] The sound-insulating pad for automobile interior of the present embodiment is formed by bonding the sound-absorbing layer and the sound-insulating layer with adhesive glue, and the sound-absorbing layer is made of the following raw materials in proportions by weight: 60 parts of bamboo charcoal fiber, 80 parts of hemp fiber, polyester 40 parts of ester fiber, 30 parts of glass fiber; the sound insulation layer is made of the following raw materials in proportion by weight: 80 parts of nitrile rubber, 40 parts of alumina powder, 30 parts of quartz powder, 0.8 part of sulfur, 0.6 part of di-o-tolueneguanidine 0.4 parts of dioctyl phthalate, 0.4 parts of N-phenyl-N`-isopropyl-p-phenylenediamine, 3 parts of chlorinated paraffin, 4 parts of antimony trioxide, 0.5 parts of azodicarbonamide Part, 0.3 part of sodium bicarbonate; Adhesive glue is made from the following raw materials in proportion by weight: 80 parts of silicone rubber adhesive.

Embodiment 3

[0021] The sound-insulating pad for automobile interior of the present embodiment is formed by bonding the sound-absorbing layer and the sound-insulating layer with adhesive glue, and the sound-absorbing layer is made of the following raw materials in optimal proportions by weight: 50 parts of bamboo charcoal fiber, 60 parts of hemp fiber , 30 parts of polyester fiber, 20 parts of glass fiber; the sound insulation layer is made of the following raw materials with the optimal ratio by weight: 60 parts of nitrile rubber, 30 parts of alumina powder, 20 parts of quartz powder, 0.6 part of sulfur, two 0.4 parts of o-tolylguanidine, 0.2 parts of dioctyl phthalate, 0.3 parts of N-phenyl-N`-isopropyl-p-phenylenediamine, 2 parts of chlorinated paraffin, 3 parts of antimony trioxide, azo 0.3 part of dimethylformamide, 0.2 part of sodium bicarbonate; the adhesive is made of the following raw materials with the optimal ratio by weight: 70 parts of silicone rubber adhesive.

[0022] The pr...

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PUM

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Abstract

The invention relates to a sound-insulating pad used inside an automobile and a preparation process of the sound-insulating pad and belongs to the technical field of automobile interior articles. The sound-insulating pad used inside the automobile is formed by bonding a sound-absorbing layer and a sound-insulating layer with bonding glue, wherein the sound-absorbing layer is made of, by weight, 30-60 parts of bamboo charcoal fibers, 50-80 parts of fibrilia, 20-40 parts of polyester fibers and 10-30 parts of glass fibers. The sound-insulating pad used inside the automobile is formed by bonding two layers of materials, the sound-absorbing layer has the sound absorbing effect and is free of toxin and smell, resistant to water and damp and good in air permeability, the sound-insulating layer not only has the sound insulating effect but also has the effects of thermal insulation, dust isolating, sealing and shock absorption, the two layers are bonded together, sound generated by resonance of metal inside the automobile can be lowered, the audio environment inside the automobile can be effectively isolated from the outside, more quietness can be achieved inside the automobile, and the effect of sound equipment inside the automobile can be further improved.

Description

technical field [0001] The invention relates to a sound-insulating pad for automobile interiors and a preparation process thereof, and belongs to the technical field of automobile interior decoration products. Background technique [0002] Automobile sound insulation is based on the performance of the vehicle, the corresponding road conditions, and the conditions of use, and the engine noise generated by the automobile, the resonance sound of vibration between the tire and the road surface, and the friction sound caused by the extrusion force of the components in the compartment due to gaps or aging, etc. Handling to improve the comfort of the car ride. At present, the most effective sound insulation method is to add sound insulation pads to the key parts of the car, so that the car not only has sound insulation, but also has the effect of heat insulation and dust insulation. However, most of the sound insulation pads used inside cars are ordinary rubber pads. Although they...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B25/10B32B25/18B32B7/12C08L9/02C08L91/06C08K13/02C08K3/22C08K3/36C08K5/31C08K5/18
CPCB32B25/10B32B7/12B32B25/18B32B2250/02B32B2262/0276B32B2262/065B32B2262/101B32B2307/102B32B2307/304B32B2307/724B32B2307/73B32B2605/003C08L9/02C08L91/06C08K13/02C08K2003/2227C08K3/36C08K5/31C08K5/18
Inventor 李守伦李守衡夏春火潘国梁
Owner WUHU XINYUAN SPONGE
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