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A composite sound-absorbing door

A sound-absorbing panel and absorbing surface technology, which is applied in the field of daily life, can solve the problems of poor sound insulation effect and impact, and achieve good sound-absorbing effect and significant sound-absorbing effect

Active Publication Date: 2018-08-14
广东恒中门业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of soundproof materials indoors is an effective means to reduce noise pollution. Most of the room doors sold on the market have been soundproofed and have a certain soundproof function. However, when the sound is loud, or there is a certain contact with the door And when vibration occurs, its sound insulation effect is relatively poor, which will affect people around

Method used

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  • A composite sound-absorbing door
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] γ-Al2O3: nickel nitrate: aluminum isopropoxide mass ratio = 4:1:2, 8g γ-Al2O3, 2g nickel nitrate, 4g aluminum isopropoxide;

[0021] Step 1. First, γ-Al2O3, nickel nitrate, 15ml 2mol / L sodium hydroxide, and 15ml absolute ethanol are ultrasonically oscillated in an oil bath at 90°C for 2 hours to remove impurities;

[0022] Step 2. Put 10ml of silica sol, aluminum isopropoxide, 200ml of deionized water, and 7ml of liquid templating agent triethylamine in an ultrasonic oscillating water bath at 90°C for 2 hours to remove impurities;

[0023] Step 3. Add the silica sol dropwise into the flask, then dropwise add deionized water, absolute ethanol, and sodium hydroxide dropwise at a rate of 20 drops per minute, and simultaneously heat the oil bath with magnetic stirring for 3 hours;

[0024] Step 4. Add aluminum isopropoxide to the above solution, then add the templating agent triethylamine dropwise at a rate of 30 drops per minute, and heat at 80°C in an oil bath with magnet...

Embodiment 2

[0033] The preparation method is the same as in Example 1; the difference is that the mass ratio of γ-Al2O3: nickel nitrate: aluminum isopropoxide is 4:3:2, 8g γ-Al2O3, 6g nickel nitrate, and 4g aluminum isopropoxide.

Embodiment 3

[0035] The preparation method is the same as in Example 1; the difference is that the mass ratio of γ-Al2O3: nickel nitrate: aluminum isopropoxide is 4:1:3, 8g γ-Al2O3, 2g nickel nitrate, and 6g aluminum isopropoxide.

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Abstract

A composite sound absorption door comprises a door front plate and a sound absorption plate. A sound absorption outer frame is arranged on the outer side of the sound absorption plate. The sound absorption plate is embedded into the sound absorption outer frame and comprises a front absorption face, a rear absorption face and a molecule sieve plate.

Description

technical field [0001] The invention relates to a composite sound-absorbing door, which belongs to the field of daily life. Background technique [0002] In people's life and work, independent or private spaces are often required, such as places required for office, meeting or rest, so the sound insulation effect of the room is very important. The use of soundproof materials indoors is an effective means to reduce noise pollution. Most of the room doors sold on the market have been soundproofed and have a certain soundproof function. However, when the sound is loud, or there is a certain contact with the door And when vibration occurs, its sound insulation effect is relatively poor, which will affect people around. Therefore, how to develop a room door with excellent sound insulation effect is a problem to be solved. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides a composite sound-absorbing door ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B5/20E06B3/72C01G53/04C01B39/40C01F7/02
CPCC01B39/40C01F7/021C01G53/04C01P2004/80C01P2006/90E06B3/72E06B5/20E06B2003/7049
Inventor 刘志伟
Owner 广东恒中门业有限公司