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Sound-absorption needled non-woven composite and preparation method thereof

A composite material and non-woven technology, which is applied in non-woven fabrics, textiles and papermaking, chemical instruments and methods, etc., can solve the problems of unfavorable wide-scale application and low strength of sound-absorbing materials, and achieve light and thin strength and low production cost. , good sound absorption effect

Active Publication Date: 2014-05-28
DANYANG YUSHENG TEXTILE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of kapok fiber is about one-third of that of polyester fiber, and the price of kapok fiber is relatively expensive. This sound-absorbing material is not conducive to a wide range of applications.

Method used

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  • Sound-absorption needled non-woven composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the sound-absorbing needle-punched nonwoven composite material of this embodiment includes the following specific steps:

[0027] A. Using the existing opening, carding, and web-laying process disclosed in Donghua University's 2010 master's thesis "Research on Sound Absorption of Composite Acupuncture Nonwoven Materials", the porous polyester fiber is opened, carded, and formed into a web. The porous polyester fiber is 8.33dtex×64mm seven-hole polyester staple fiber produced by Sinopec Yizheng Chemical Fiber Co., Ltd.

[0028] B. Feed the fiber net into the acupuncture machine for acupuncture reinforcement, looping, and cutting to make two fabric samples, one fabric sample has a thickness of 10mm and an area density of 55g / m 2 , another fabric sample has a thickness of 10mm and a surface density of 70g / m 2 . The total number of needles of the acupuncture machine: 4800 needles, the area is 1.2m×0.3m, the acupuncture frequency n is 1200 punch...

Embodiment 2

[0032] The preparation method of the sound-absorbing needle-punched nonwoven composite material of this embodiment includes the following specific steps:

[0033] A. Using the existing opening, carding, and web-laying process disclosed in Donghua University's 2010 master's thesis "Research on Sound Absorption of Composite Acupuncture Nonwoven Materials", the porous polyester fiber is opened, carded, and formed into a web. The porous polyester fiber is 8.33dtex×64mm seven-hole polyester staple fiber produced by Sinopec Yizheng Chemical Fiber Co., Ltd.

[0034] B. Feed the fiber net into the acupuncture machine for acupuncture reinforcement, coiling, and cutting to make two kinds of fabric samples. One fabric sample has a thickness of 10mm and a surface density of 65g / m 2 , another fabric sample has a thickness of 10mm and a surface density of 50g / m 2 . The total number of needles of the acupuncture machine: 4800 needles, the area is 1.2m×0.3m, the acupuncture frequency n is...

Embodiment 3

[0038] The preparation method of the sound-absorbing needle-punched non-woven composite material in this example is the same as in Example 1 except that the porous polyester fiber is made of 10.00dtex×60mm seven-hole polyester staple fiber produced by Sinopec Yizheng Chemical Fiber Co., Ltd. fiber.

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Abstract

The invention discloses a preparation method for a sound-absorption needled non-woven composite. The preparation method comprises the following steps: A, opening porous polyester fibers, carding and netting; B, inputting the fiber net into a needling machine for reinforcing by needling, winding, cutting, and preparing fabric, wherein the thickness of the fabric is 4-40 mm and the surface density of the fabric is 40-500 g / m<2>; C, laminating 2-6 layers of the fabric, conducing hot pressing for combining, and then cooling, wherein the temperature for the hot pressing is 100-120 DEG C. The invention further discloses the sound-absorption needled non-woven composite. After hot pressing for combining, the sound-absorption performance of the sound-absorption needled non-woven composite is significantly improved; besides, the sound-absorption needled non-woven composite is light, thin, high in strength and low in production cost.

Description

technical field [0001] The invention relates to a sound-absorbing material and a preparation method thereof, in particular to a needle-punched non-woven sound-absorbing material and a preparation method thereof, belonging to the technical field of sound-absorbing materials. Background technique [0002] With the advancement of science and technology, people have brought more social problems to themselves while enjoying high-efficiency social activities, among which environmental pollution has become one of the main bottlenecks restricting the development of human society. At the same time, noise pollution has seriously affected people's living standards along with modern high-speed transportation and enterprise production. Noise reduction has become an important issue related to people's living standards and coordinated development. There are two main development directions for noise reduction: one is sound insulation technology, and the other is sound absorption technology...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B3/26B32B37/06D04H1/435D04H1/46
CPCB32B3/26B32B3/266B32B5/02B32B5/022B32B5/26B32B27/08B32B27/12B32B27/36B32B37/00B32B37/02B32B37/06B32B37/10B32B2250/05B32B2250/20B32B2262/0276B32B2262/0284B32B2307/102B32B2457/00B32B2605/08B32B2605/10D04H1/435D04H1/46
Inventor 晏雄陈夕方杨旭东张慧萍陈静
Owner DANYANG YUSHENG TEXTILE NEW MATERIAL
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