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Sound absorption and noise reduction decorative board and preparation method and application thereof

A decorative panel and noise reduction technology, applied in the field of composite panels, can solve the problems of overshooting and low noise outside the vehicle, and achieve the effect of excellent anti-icing performance

Inactive Publication Date: 2019-01-04
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN106739226A discloses a sound-absorbing and sound-insulating needle-punched non-woven fabric for automobile interior decoration and its preparation method. The non-woven fabric includes a face cloth and a base cloth, the base cloth includes a first base cloth and a second base cloth, and the face is polyester fiber Made, the first base cloth and the second base cloth all include polyester fiber, waste cotton fiber polypropylene fiber and low-melting point fiber, which can absorb the noise inside the car and block the noise outside the car; CN206623487U discloses a car engine bottom guard plate , the car engine bottom guard plate has three layers, including a covering layer of PET fiber felt on the surface, a base layer of lightweight glass fiber reinforced felt on the bottom layer, and a damping layer of viscoelastic rubber between the covering layer and the base layer. A three-layer composite structure is adopted, but its effective sound-absorbing surface is only in the covering layer, which only absorbs the noise released inside the car and makes little contribution to reducing the noise outside the car
In addition, the thickness of the product involved in this patent is ≥14mm, which exceeds the thickness limit of some target products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Sound absorption and noise reduction decorative board and preparation method and application thereof
  • Sound absorption and noise reduction decorative board and preparation method and application thereof
  • Sound absorption and noise reduction decorative board and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] figure 1 The structural schematic diagram of the sound-absorbing and noise-reducing decorative board provided for this embodiment, from top to bottom is the first non-woven PET fiber layer (3), non-woven needle-punched glass fiber reinforced polypropylene layer (1), thermoplastic film layer ( 2) and a second non-woven PET fiber layer (4).

[0070] Wherein, the thickness of the first non-woven PET fiber layer is 0.5mm, and the grammage is 100g / m 2 ;

[0071] The non-woven needle-punched glass fiber reinforced polypropylene layer has a thickness of 6mm and a weight of 1000g / m 2 , based on the total mass of glass fiber reinforced polypropylene as 100%, the mass percentage of glass fiber is 50%;

[0072] The thickness of the thermoplastic film layer is 0.07mm and the weight is 50g / m 2 , the thermoplastic film layer is provided with a plurality of through holes, the aperture is 0.05mm, and the porosity is 7%. The raw materials for the preparation of the thermoplastic fil...

Embodiment 2-4

[0083] The only difference from Example 1 is that in this example, the thickness of the non-woven needle-punched glass fiber reinforced polypropylene layer is 4mm (Example 2), 10mm (Example 3), 2mm (Example 4), 12mm (Example 5).

Embodiment 6-16

[0085] The difference with embodiment 1 is only that, in this embodiment, the thickness of thermoplastic film layer is 0.2mm (embodiment 6), 0.04mm (embodiment 7), 0.4mm (embodiment 8);

[0086] The only difference with embodiment 1 is that in this embodiment, the aperture of the through hole provided on the thermoplastic film layer is 0.01mm (embodiment 9), 0.1mm (embodiment 10), 0.005mm (embodiment 11), 0.2mm (embodiment 12);

[0087] The only difference with Example 1 is that in this example, the porosity of the through holes provided on the thermoplastic film layer is 3% (Example 13), 10% (Example 14), 1% (Example 15) , 12% (embodiment 16).

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Abstract

The invention provides a sound absorbing and noise reduction decorative board and a preparation method and application thereof. The decorative board comprises a non-woven needled glass fiber reinforced polypropylene layer and a thermoplastic film layer. The microporous structure of the non-woven needled glass fiber reinforced polypropylene layer has the advantages of sound absorption and noise reduction, and is combined with resonance sound absorption of a film layer, and the decorative board has the advantages of sound absorption and noise reduction.

Description

technical field [0001] The invention belongs to the technical field of composite boards, and relates to a sound-absorbing and noise-reducing decorative board as well as a preparation method and application thereof. Background technique [0002] Statistics show that 70% of urban environmental noise comes from motor vehicles, and vehicle noise has become the largest pollution source of environmental noise. Excessive car noise seriously affects people's life, work and health, especially for residents living on both sides of the main traffic road. Survey data show that living in a vibration and noise environment for a long time can cause irritability, nausea, headache and insomnia, wherein 70 decibels of noise can affect 50% of people's sleep, and sudden 60 decibels of noise can also cause people to suffer from depression. Woke up in sleep. In order to reduce the pollution degree of automobile noise to urban noise, controlling the noise emitted by vehicles is an effective meas...

Claims

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Application Information

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IPC IPC(8): B32B3/24B32B27/02B32B27/08B32B27/12B32B27/20B32B27/32B32B27/34B32B37/02B32B37/06B32B37/08B32B37/10B60R13/08B32B38/04B32B27/36B29D7/01
CPCB29D7/01B32B3/266B32B5/022B32B5/06B32B5/24B32B27/08B32B27/12B32B27/20B32B27/32B32B27/34B32B37/02B32B37/06B32B37/08B32B37/10B32B38/04B32B2038/047B32B2250/40B32B2262/0276B32B2262/10B32B2262/101B32B2270/00B32B2274/00B32B2305/026B32B2307/102B32B2307/73B32B2605/08B60R13/08
Inventor 王亦是阮静陈奇
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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