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Method for preparing sound-absorbing body with sound-absorbing function

A functional, polyester staple fiber technology, applied in the field of sound-absorbing body preparation, can solve the problems of poor environmental decoration, cleaning, complex production process of sound-absorbing body, poor low-frequency sound-absorbing effect, etc., to achieve good sound-absorbing effect, easy recycling, easy to install effects

Active Publication Date: 2013-10-23
JIANGSU BURGEREE NEW TECH MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the plate-shaped structure is the simplest and the most widely used; it has a good effect on high-frequency sound absorption, but the low-frequency sound absorption effect is not good; the function is single, and it cannot decorate the environment except for the incomplete sound absorption effect. , cleaning and other functions; in terms of construction, a large number of keels are needed as a support, which affects the sound absorption effect to varying degrees; the production process of the sound-absorbing body is complicated and requires multiple processes to complete

Method used

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  • Method for preparing sound-absorbing body with sound-absorbing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:

[0029] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 50% of the total fiber mass;

[0030] (b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;

[0031] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;

[0032] The acupuncture density of the acupuncture is 1.0 needles / cm 2 ; The rolling pressure during rolling is 0.8Mpa, the rolling speed is 1.26m / min, and the roller spacing is 25mm;

[0033] (d...

Embodiment 2

[0041] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:

[0042] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 60% of the total fiber mass;

[0043] (b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;

[0044] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;

[0045] The acupuncture density of the acupuncture is 1.2 needles / cm 2 ; The rolling pressure during rolling is 0.9Mpa, the rolling speed is 1.20m / min, and the roller spacing is 30mm;

[0046] (d...

Embodiment 3

[0054] A method for preparing a sound-absorbing body with adsorption function, comprising the steps of:

[0055] (a) Add the first polyester staple fiber and the second polyester staple fiber to the raw material feeding device, the fibers are mixed evenly through the feeding device, and the first polyester staple fiber accounts for 70% of the total fiber mass;

[0056](b) The mixed fibers are pre-opened first to loosen the agglomerated fibers; after the pre-opening is completed, fine-opening is performed to make the fibers evenly mixed together; the opened fibers pass through the compression device , into the carding equipment, the fibers form a continuous fiber web after the carding equipment;

[0057] (c) The fiber web is obtained by needling and rolling to obtain fiber cotton;

[0058] The acupuncture density of the acupuncture is 1.3 needles / cm 2 ; The rolling pressure during rolling is 1.0Mpa, the rolling speed is 1.26m / min, and the roller spacing is 50mm;

[0059] (d)...

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Abstract

The invention relates to a method for preparing a sound-absorbing body with a sound-absorbing function, which comprises the following steps: (a) uniformly mixing first polyester staple fibers with fibers A; (b) carrying out opening and carding on the mixed fibers so as to form a fiber web; (c) carrying out needling and rolling on the fiber web so as to obtain fiber cotton; (d) uniformly scattering carbon particles on the surface of the fiber cotton; (e) laying a layer of first polyester staple fiber web on the carbon particles so as to obtain mixed fiber cotton; (f) putting the mixed fiber cotton in a drying oven to carry out heat treatment; (g) placing a piece of fabric or leather on the mixed fiber cotton subjected to heat treatment, and then extruding the obtained product by using a die, so that the sound-absorbing body can be obtained. According to the method, the used carbon particles have a strong adsorption function, and the carbon particles can be in contact with air through gaps among the fibers or gaps among the carbon particles and the fibers, so that the adsorption efficiency of the sound-absorbing body is improved. Adsorption experiments on formaldehyde prove that the adsorption efficiency of the sound-absorbing body is over 85%.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for preparing a sound-absorbing body with an adsorption function. Background technique [0002] Among the existing sound-absorbing bodies, the shape is monotonous, and common shapes include plate, cube, cylinder, cone and sphere. Among them, the plate-shaped structure is the simplest and the most widely used; it has a good effect on high-frequency sound absorption, but the low-frequency sound absorption effect is not good; the function is single, and it cannot decorate the environment except for the incomplete sound absorption effect. , cleaning and other functions; in terms of construction, a large number of keels are needed as support, which affects the sound absorption effect to varying degrees; the production process of the sound-absorbing body is complicated and requires multiple processes to complete. Contents of the invention [0003] The invention overcomes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10B32B27/14B32B27/02B32B9/04D03D15/00D03D13/00
Inventor 左百川相增辉
Owner JIANGSU BURGEREE NEW TECH MATERIALS
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