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Laminating 3D (three-dimensional) sound absorber and preparation method thereof

A 3D and film-coated technology, applied in the field of film-coated 3D sound-absorbing body and its preparation, can solve the problems of not obvious low-frequency sound-absorbing effect, monotonous appearance effect of sound-absorbing body, complicated forming structure of sound-absorbing body, etc., and achieve sound-absorbing effect Good, easy to install, sound absorption effect improved

Active Publication Date: 2013-09-25
JIANGSU BURGEREE NEW TECH MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The forming structure of the existing sound-absorbing body is relatively complicated, and there are many influences on construction and acoustic effects. The appearance of the sound-absorbing body is relatively monotonous and cannot play a decorative effect. The effect in low-frequency sound absorption is not obvious, and the production process is complicated. , requires multiple processes to complete

Method used

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  • Laminating 3D (three-dimensional) sound absorber and preparation method thereof
  • Laminating 3D (three-dimensional) sound absorber and preparation method thereof
  • Laminating 3D (three-dimensional) sound absorber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 The shown coated 3D sound absorbing body includes a covering layer, a first polyester staple fiber mesh layer and a fiber cotton layer that are sequentially compounded; the fiber cotton layer includes a first polyester staple fiber and uniformly distributed in the first polyester staple fiber. The quality of the first polyester staple fiber mesh layer is 2% of the mass of the fiber cotton layer; the melting point of the first polyester staple fiber is 180 ° C; the melting point of the second polyester staple fiber is 258°C.

[0035] The ratio of the second polyester staple fibers to the first polyester staple fibers in the fiber cotton layer is 1:1.

[0036] There are needle punch holes evenly distributed on the surface of the fiber cotton layer, the diameter of the needle punch hole is 1.8mm, the depth of the needle punch is three quarters of the thickness of the fiber cotton layer, and the needle punch density is 1.2 needles / cm 2 .

[0037] The thickn...

Embodiment 2

[0050] The film-coated 3D sound absorbing body includes a covering layer, a first polyester short fiber mesh layer and a fiber cotton layer that are sequentially compounded; the fiber cotton layer includes a first polyester short fiber and a first polyester short fiber uniformly distributed in the first polyester short fiber. Dipolyester staple fibers; the mass of the first polyester staple fiber web layer is 6% of the mass of the fiber cotton layer; the melting point of the first polyester staple fiber is 188°C; the melting point of the second polyester staple fiber is 263°C .

[0051] The ratio of the second polyester staple fibers to the first polyester staple fibers in the fiber cotton layer is 1:2.

[0052]There are acupuncture holes evenly distributed on the surface of the fiber cotton layer, the hole diameter of the needle holes is 1.9mm, the depth of the needle punching is three quarters of the thickness of the fiber cotton layer, and the needle punching density is 1.3...

Embodiment 3

[0066] The film-coated 3D sound-absorbing body includes a sequentially compounded cover layer, a first polyester staple fiber web layer, and a fiber cotton layer; the fiber cotton layer includes the first polyester staple fiber and the second polyester staple fiber evenly distributed in the first polyester staple fiber Two polyester staple fibers; the quality of the first polyester staple fiber net layer is 4% of the fiber cotton layer quality; the melting point of the first polyester staple fibers is 198 ° C; the melting point of the second polyester staple fibers is 266 ° C .

[0067] The ratio of the second polyester staple fiber to the first polyester staple fiber in the fiber cotton layer is 1:2.2.

[0068] There are acupuncture holes evenly distributed on the surface of the fiber cotton layer, the diameter of the needle hole is 1.5mm, the depth of acupuncture is 4 / 5 of the thickness of the fiber cotton layer, and the needle punching density is 1.4 needles / cm 2 .

[006...

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Abstract

The invention discloses a laminating 3D (three-dimensional) sound absorber and a preparation method thereof. The laminating 3D sound absorber comprises a covering layer, a first polyester staple fiber mesh layer and a fiber cotton layer which are sequentially compounded, needled holes are uniformly distributed in the surface of the fiber cotton layer, the hole diameter of each needled hole is not larger than 2mm, the depth of each needled hole is larger than two thirds of the thickness of the fiber cotton layer, and needling density is 1.0 needle / cm<2>-1.5 needles / cm<2>. Recyclable polyester fibers are used as raw materials and do not contain harmful substances, the harmful substances cannot be released, the materials can be recycled, and fiber cotton and coverings are adhered together through molten first polyester staple fibers. After the laminating 3D sound absorber is attached onto a wall, a cavity can be formed by the laminating 3D sound absorber and the wall, keels are omitted, and vibration transfer of sound is decreased, so that sound absorption and noise reduction effects are preferably achieved. The laminating 3D sound absorber is fine in sound absorption effect, and particularly, low-frequency sound absorption effects are obviously improved.

Description

technical field [0001] The invention relates to a film-coated 3D sound absorbing body and a preparation method thereof, belonging to the field of building materials components and construction. Background technique [0002] Space sound absorbers can have various shapes such as plate, square, cylinder, cone and sphere according to the use nature, area, floor height, structural form, decoration requirements and sound source characteristics of the building. Among them, the plate-shaped structure is the simplest and the most widely used. [0003] The forming structure of the existing sound absorbing body is relatively complicated, and there are many influences of construction and acoustic effects. The appearance effect of the sound absorbing body is relatively monotonous, and cannot play a decorative effect. The effect of low-frequency sound absorption is not very obvious, and the production process is complicated. , requires multiple processes to complete. SUMMARY OF THE INV...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/84B32B27/02B32B27/12B32B27/36B32B27/34
Inventor 左百川相增辉
Owner JIANGSU BURGEREE NEW TECH MATERIALS
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