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Aerogel-based composite aluminum fiber acoustic panel absorber and preparation method thereof

An airgel-based, airgel-based technology, applied in chemical instruments and methods, lamination devices, lamination, etc., can solve the problems of inorganic fiber sound-absorbing materials that are not easily decomposed, the sound absorption coefficient is reduced, and the use temperature is reduced. , to achieve the effect of convenient appearance design, good tensile strength and fast production speed

Inactive Publication Date: 2017-01-11
SHANGHAI GRAND SOUND BEYOND NOISE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with general traditional fibrous sound-absorbing materials, traditional materials are softer and lower in strength. Organic fiber sound-absorbing materials have a higher moisture absorption rate and are easy to burn, while inorganic fiber sound-absorbing materials are not easy to decompose and will seriously pollute the environment. cause allergies in humans
In addition, some sound-absorbing materials, such as granular sound-absorbing materials, will have particles falling during the installation process, causing danger; foam sound-absorbing materials will age after a period of use, and the operating temperature will be greatly reduced. Many problems such as a serious drop in the coefficient

Method used

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  • Aerogel-based composite aluminum fiber acoustic panel absorber and preparation method thereof

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Effect test

Embodiment 1

[0025] An airgel-based composite aluminum fiber sound-absorbing panel, such as figure 1 As shown, it includes aluminum stencil 1, airgel-based fiber felt 2 and aluminum fiber felt 3, the two sides of aluminum fiber felt 3 are bonded with airgel-based fiber felt 2, and the outside of airgel-based fiber felt 2 is bonded An aluminum stencil 1 is attached, an aluminum fiber mat 3 is made of aluminum fiber filaments with a thickness between 0.5 and 2 mm, and an airgel-based fiber mat 2 is a silicon oxide or iron oxide inorganic airgel fiber mat.

Embodiment 2

[0027] The density is 840g / m 2 Manufacturing of aluminum sound-absorbing panels

[0028] The aluminum fiber felt with a thickness of 0.5mm is sandwiched between two aluminum mesh panels glued with silica-based inorganic airgel fiber felt. The sandwich structure is rolled by a rolling machine and cured at room temperature to make a density of 840g / m 2 Aluminum sound-absorbing panels. The transverse tensile strength of aluminum fiberboard is about 70kg / cm 2 , the elongation rate is about 18%, and the longitudinal tensile strength is about 400kg / cm 2 , The elongation is about 12%.

Embodiment 3

[0030] The density is 1250g / m 2 Manufacturing of aluminum sound-absorbing panels

[0031] The aluminum fiber felt with a thickness of 2mm is sandwiched between two aluminum mesh panels glued with iron oxide-based inorganic airgel fiber felt. The sandwich structure is rolled by a rolling machine and cured at high temperature to make a density of 1250g / m 2 Aluminum sound-absorbing panels. The transverse tensile strength of aluminum fiberboard is about 80kg / cm 2 , The elongation is about 20%, the longitudinal tensile strength is about 500kg / cm2, and the elongation is about 17%.

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Abstract

The invention relates to an aerogel-based composite aluminum fiber acoustic panel absorber and a preparation method of the aerogel-based composite aluminum fiber acoustic panel absorber, and belongs to the field of manufacturing of metal sound absorption materials. The aerogel-based composite aluminum fiber acoustic panel absorber comprises aluminum screen plates, aerogel-based fiber felts and an aluminum fiber felt, wherein the aerogel-based fiber felts are adhered on two sides of the aluminum fiber felt, and the aluminum screen plates are adhered on the outer sides of the aerogel-based fiber felts. Compared with the prior art, the method related in the invention is wide in application range, readily available in raw materials and low in cost, the manufactured aerogel-based aluminum fiber acoustic panel absorber has the advantages of simple process equipment, quick production speed, low cost, noninflammability, good mechanical properties, high strength, good toughness, impact resistance and capabilities of withstanding high-speed air flow, water-current scouring and the like, and is further of great significance on sound absorption fields of ship cabins, vehicle bodies, aircrafts, industrial workshop ceilings, mechanical vibration engines and the like.

Description

technical field [0001] The invention belongs to the field of metal sound-absorbing material manufacturing, and in particular relates to an airgel-based composite aluminum fiber sound-absorbing board and a preparation method thereof. Background technique [0002] Aluminum fiber sound-absorbing panel is a kind of metal sound-absorbing material with thinner thickness and lighter weight. It has all the advantages of traditional sound-absorbing materials, such as ultra-fine glass wool, mineral wool, and rock wool, and overcomes its shortcomings. It is easy to process, install and clean, and has excellent decorative functions. Compared with general traditional fibrous sound-absorbing materials, traditional materials are softer and lower in strength. Organic fiber sound-absorbing materials have a higher moisture absorption rate and are easy to burn, while inorganic fiber sound-absorbing materials are not easy to decompose and will seriously pollute the environment. Can cause human...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/00B32B5/02B32B9/04B32B15/20B32B15/02B32B7/12B32B7/08B32B33/00B32B37/12B32B37/10
CPCB32B15/20B32B5/26B32B7/08B32B7/12B32B15/14B32B33/00B32B37/10B32B37/12B32B2262/10B32B2262/103B32B2307/10B32B2307/304B32B2307/3065B32B2307/54B32B2307/558
Inventor 杨雪娇王志平王恺中庐音霁奚莲英
Owner SHANGHAI GRAND SOUND BEYOND NOISE NEW MATERIAL
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