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Sound absorption and insulation composite material structure

A composite material, sound-absorbing and insulating technology, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve unexisting problems and achieve good sound-absorbing effect

Active Publication Date: 2012-09-26
SAN SHIANG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the absorption of middle and low frequency sound waves cannot be achieved only by relying on the attenuation mechanism of sound waves injected into the sound-absorbing material, which is often half the effort
[0006] The inventor of the present invention has been engaged in the research, development and manufacture of various non-woven materials for many years. He has profound experience in various manufacturing methods of non-woven fabrics, and knows that non-woven fabrics are widely used, and people have been trying to use non-woven fabrics from the material formula and manufacturing methods. Sound-absorbing and insulating materials with good effects have been found, but so far no satisfactory results have appeared.

Method used

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  • Sound absorption and insulation composite material structure
  • Sound absorption and insulation composite material structure
  • Sound absorption and insulation composite material structure

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Embodiment Construction

[0031] see figure 1 As shown, the first embodiment of the present invention is a sound-absorbing composite material 10 as a whole, and its structure is basically composed of at least one non-woven fiber layer 20 and at least one polyethylene film 30 (Polyethylene, PE). figure 1 It is a schematic diagram showing the structure of the sound-absorbing and insulating composite material 10, which is composed of a non-woven fiber layer 20 and a polyethylene film 30, which is called "single-layer single-pasting type". Wherein, the non-woven fabric fiber layer 20 is a fiber laminated layer made by a non-woven fabric manufacturing method, which can be made of recycled and environmentally friendly fiber materials to achieve the effect of environmental protection, energy saving and carbon reduction, but it does not rule out that it can be made of any fiber material; 1mm (inclusive), the main function is to support one (at least one) fiber stacked layer formed by interlacing and interlacin...

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Abstract

The invention provides a sound absorption and insulation composite material structure composed by closely bonding at least one non woven fiber layer and at least one polyethylene film. Specifically, the non woven fiber layer is a fiber stack layer prepared from a recycled and environment friendly fiber material by a non woven technological process, and has thickness equal to or greater than 1mm. And the thickness of the polyethylene film is in the range of 0.009mm-0.1mm.

Description

【Technical field】 [0001] The present invention relates to a sound-absorbing composite material structure, in particular to a composition of at least one non-woven fabric (Non Woven) fiber layer and at least one polyethylene film made of recycled environmental protection fiber materials, which can have excellent sound-absorbing effect. 【Background technique】 [0002] In the general daily life environment, there will be many places where good sound absorption and / or sound insulation effects must be applied. The most common one is that in order to achieve comfortable ride and good sound effect in luxury cars, materials with good sound-absorbing and sound-insulating effects must be used to isolate and absorb external mid- and high-frequency noisy sounds, as well as the sound generated by the vehicle itself when driving. Low and medium frequency noise and resonance. If the sound-absorbing and sound-insulating effects are not good, it is difficult to show the sense of value of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12B32B27/32
Inventor 林明阳潘国良
Owner SAN SHIANG TECH
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