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Preparation method of high-strength sound-absorbing board

A sound-absorbing board and high-strength technology, which is applied in the field of preparing high-strength sound-absorbing boards, can solve the problems of poor sound-absorbing effect and low strength, and achieve the effects of improving regularity, increasing porosity and increasing strength.

Inactive Publication Date: 2018-04-17
CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem to be solved by the present invention: Aiming at the defects of low strength and poor sound-absorbing effect of ordinary sound-absorbing panels at present, a preparation method of high-strength sound-absorbing panels is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Weigh 200g soybeans, 60g konjac glucomannan and 30g xanthan gum, mix and grind for 10 minutes, pass through a 100-mesh sieve, collect the sieved mixed powder, and mix the sifted mixed powder and distilled water in a beaker according to the mass ratio of 1:3 , stirred at a temperature of 70°C for 12 minutes to obtain a mixed slurry, continued to add sodium carbonate with a mass of 5% of the mixed slurry to the mixed slurry, mixed and stirred at 90°C for 1 hour, cooled naturally to room temperature, and discharged to obtain homemade Tofu, freeze the homemade tofu in a refrigerator at -10°C for 9 minutes to obtain frozen tofu, put the frozen tofu into a fermenter with 8% biogas slurry of frozen tofu quality, and seal and ferment at a temperature of 35°C After 8 days, dry the fermented bean curd after fermentation, weigh 30g of zeolite and grind for 10 minutes to obtain zeolite powder, mix zeolite powder, hydrogen peroxide with a mass fraction of 20%, apple juice and titaniu...

example 2

[0026] Weigh 300g soybeans, 70g konjac glucomannan and 40g xanthan gum, mix and grind for 11 minutes, pass through a 100-mesh sieve, collect the sieved mixed powder, and mix the sifted mixed powder and distilled water in a beaker according to the mass ratio of 1:3 , stirred at a temperature of 80°C for 14min to obtain a mixed slurry, continued to add sodium carbonate with 5% mass of the mixed slurry to the mixed slurry, mixed and stirred at 100°C for 1.5h, cooled naturally to room temperature, and discharged to obtain Homemade tofu, freeze the homemade tofu in a refrigerator at -8°C for 10 minutes to obtain frozen tofu, put the frozen tofu into a fermenter with 8% biogas slurry of frozen tofu quality, and seal it at a temperature of 40°C Ferment for 9 days, dry after fermentation to obtain fermented tofu, weigh 35g of zeolite and grind for 11 minutes to obtain zeolite powder, mix zeolite powder, hydrogen peroxide with a mass fraction of 20%, apple juice and The titanate coupli...

example 3

[0028]Weigh 400g soybeans, 80g konjac glucomannan and 50g xanthan gum, mix and grind for 12 minutes, pass through a 100-mesh sieve, collect the sieved mixed powder, mix the sifted mixed powder and distilled water in a beaker according to the mass ratio of 1:3 , stirred at a temperature of 90°C for 16 minutes to obtain a mixed slurry, continued to add sodium carbonate with a mass of 5% of the mixed slurry to the mixed slurry, mixed and stirred at 110°C for 2 hours, cooled naturally to room temperature, and discharged to obtain homemade Tofu, freeze the homemade tofu in a refrigerator at -6°C for 11 minutes to obtain frozen tofu, put the frozen tofu into a fermenter with 8% biogas slurry of frozen tofu quality, and seal and ferment at a temperature of 45°C After 10 days, dry the fermented bean curd after fermentation, weigh 40g of zeolite and grind for 12 minutes to obtain zeolite powder, and mix zeolite powder, hydrogen peroxide with a mass fraction of 20%, apple juice and titan...

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Abstract

The invention relates to the technical field of preparation of building boards and specifically relates to a preparation method of a high-strength sound-absorbing board. The preparation method provided by the invention is as follows: firstly removing proteins in frozen beancurd to enable the frozen beancurd to be of a porous structure with a large specific surface area, modifying zeolite powder toobtain modified foamed zeolite slurry, smearing the modified foamed zeolite slurry on the surface of fermented beancurd, performing drying treatment, and taking out a porous foamed material, so thatthe porosity of the structure in zeolite is improved and the sound-absorbing effect is further achieved, the filling of the zeolite improves the strength of the sound-absorbing board, and the additionof nano-montmorillonite improves the crystallinity of the material; continuously adding ceramsite, a foaming agent and a waterproofing agent, wherein the foaming agent produces bubbles in the stirring process so as to achieve the sound-absorbing effect, the ceramsite with a certain hardness is filled into the sound-absorbing board to improve the strength, the waterproofing agent enables the sound-absorbing board to have a hydrophobic function, the surface and voids of the sound-absorbing board can be automatically purified, and the sound-absorbing effect is stabilized, so that the preparationmethod has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of building board preparation, in particular to a preparation method of a high-strength sound-absorbing board. Background technique [0002] In recent years, with the development of the economy, the problem of noise pollution has also been aggravated. Noise seriously affects the normal life and human health of residents, and has become one of the problems that human beings need to solve urgently. [0003] Sound-absorbing board is an ideal sound-absorbing decorative material, which is generally made by pressing various powder materials in a certain ratio. It has the advantages of simple cutting and construction, good stability, good impact resistance, and high cost performance. It is mainly used in places with high requirements for noise isolation, such as concert halls, theaters, studios, conference rooms, gymnasiums, exhibition halls, dance halls, lecture halls and other buildings. [0004] The existing p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L99/00C08L67/00C08K9/06C08K9/04C08K3/34C08J9/10
Inventor 龙海燕杨亚生张建初
Owner CHANGZHOU SIYU ENVIRONMENTAL PROTECTION MATERIAL SCI & TECH
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