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A sound-absorbing foam plastic board

A foamed plastic board and foamed plastic technology, applied in the field of foamed plastic boards, can solve the problems of poor mid-low frequency sound absorption, reduced foam strength and the like, and achieve the effect of simple processing

Inactive Publication Date: 2016-04-13
杨州富铭新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Foam plastic has the advantages of light weight and heat insulation, and is often used in building decoration materials. Although the existing foam plastic also has a certain sound absorption function, it mainly absorbs medium and high frequency sounds, and has poor absorption of medium and low frequency sounds. Opening a certain density of through holes can improve the absorption of middle and low frequency sound to a certain extent, but the use of through hole structure will lead to a significant decrease in the strength of foam plastics

Method used

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  • A sound-absorbing foam plastic board
  • A sound-absorbing foam plastic board
  • A sound-absorbing foam plastic board

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Embodiment 1

[0022] Both the first foamed plastics board and the second foamed plastics board are made of polystyrene foam, wherein the thickness of the first foamed plastics board is 6mm, and the thickness of the second foamed plastics board is 4mm; in the first foamed plastics board wherein The diameter of the hemispherical grooves on one side is 4mm, and the hemispherical grooves are distributed in a square lattice with a horizontal spacing of 7mm; The spacing is a square lattice distribution of 7mm; the first foam plastic plate is provided with the side of the hemispherical groove and the second foam plastic plate is provided with the side of the hemispherical groove with an adhesive to bond together the first foam plastic plate and the second foam plastic plate The two foam plastic plates are integrated, and the hemispherical groove of the first foam plastic plate and the hemispherical groove of the second foam plastic plate correspond to each other up and down during bonding.

[0023...

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Abstract

The invention discloses a sound-absorbing foam plastic board. The sound-absorbing foam plastic board at least comprises a first foam plastic board and a second foam plastic board, wherein the first foam plastic board and the second foam plastic board are bonded into whole; hemispherical grooves are uniformly distributed on the bonded surfaces of the first foam plastic board and the second foam plastic board respectively; and the ratio of the diameter of the hemispherical groove on the first foam plastic board to the diameter of the hemispherical groove on the second foam plastic board is 1:(0.5-0.7). According to the sound-absorbing foam plastic board disclosed by the invention, the hemispherical grooves are arranged on the foam plastic boards only, so that the processing is simple; and meanwhile, the influence of through hole foam plastic boards on the strength in the prior art can be avoided. The average sound absorption coefficient of the sound-absorbing foam plastic board in medium and low frequencies (100-1500Hz) is 0.59.

Description

technical field [0001] The invention relates to a plastic board, in particular to a foam plastic board with sound absorption function. Background technique [0002] Foam plastic has the advantages of light weight and heat insulation, and is often used in building decoration materials. Although the existing foam plastic also has a certain sound absorption function, it mainly absorbs medium and high frequency sounds, and has poor absorption of medium and low frequency sounds. Opening a certain density of through holes can improve the absorption of middle and low frequency sound to a certain extent, but the use of through hole structure will lead to a significant decrease in the strength of foam plastics. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned defects of the prior art and provide a sound-absorbing foam plastic board. [0004] The technical scheme adopted by the present invention to realize the above object is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/30B32B3/30E04B1/86
Inventor 钱嘉良
Owner 杨州富铭新材料有限公司
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