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A kind of ceramic sound-absorbing material and its preparation method and application

A technology of sound-absorbing materials and ceramics, which is applied in the field of ceramic sound-absorbing materials and their preparation, can solve the problems of poor performance such as fire prevention, weather resistance, strength, sound absorption and sound insulation, etc., and achieve good sound-absorbing performance, physical and chemical Excellent performance and easy construction

Active Publication Date: 2019-04-16
中电声韵声学工程技术(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The sound-absorbing and sound-insulating materials commonly used in the market are usually poor in fire resistance, weather resistance, strength, sound absorption and sound insulation, and various problems are exposed during application.

Method used

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  • A kind of ceramic sound-absorbing material and its preparation method and application
  • A kind of ceramic sound-absorbing material and its preparation method and application
  • A kind of ceramic sound-absorbing material and its preparation method and application

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Experimental program
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Effect test

preparation example Construction

[0059] In the preparation method of the above-mentioned ceramic sound-absorbing material, the raw materials are mixed in proportion, followed by a foaming process, and then sintered to obtain a ceramic sound-absorbing material.

[0060] The preparation method of the ceramic sound-absorbing material of the present invention has the advantages of simple process, low cost, short time consumption and easy implementation.

[0061] Preferably, the corundum, silicon carbide, cordierite and silicate are pulverized and mixed with a ball mill first, and then mixed with other raw materials.

[0062] By means of ball milling, the solid raw materials can be further fully crushed and mixed; as needed, some water can be added in an appropriate amount, which is included in the total amount of water used.

[0063] Further preferably, the ball milling time is 2-48 hours, which is determined according to the particle size and dosage of the specific raw materials used.

[0064] After ball millin...

Embodiment 1

[0078] A method for preparing a ceramic sound-absorbing material, comprising the steps of:

[0079] (1) 20kg corundum powder, 20kg silicon carbide powder, 20kg cordierite powder and 5kg sodium silicate powder are fully ground and mixed by ball milling;

[0080] (2) Add 5kg polyethylene oxide, 25kg water, and 1kg fatty alcohol polyoxyethylene ether sodium sulfate to the material obtained in step (1), stir and mix thoroughly, keep warm at 70°C for 30 minutes, and stir the obtained material at a stirring rate of 1000rpm for 15min , then poured into the mold (thickness is 1cm);

[0081] (3) After drying and demolding the material obtained in step (2) (natural drying, demoulding after surface molding), heat preservation at 1600° C. for 120 minutes, and sintering to obtain a ceramic sound-absorbing material.

Embodiment 2

[0083] A method for preparing a ceramic sound-absorbing material, comprising the steps of:

[0084] (1) 30kg corundum powder, 30kg silicon carbide powder, 30kg cordierite powder and 10kg magnesium silicate powder are fully ground and mixed by ball milling;

[0085] (2) Add 10kg polyoxyethylene, 35kg water, 2kg fatty alcohol polyoxyethylene ether sodium sulfate to the material obtained in step (1), fully stir and mix, keep warm at 90°C for 10 minutes, and stir the obtained material at a stirring rate of 2000rpm for 5min , then poured into the mold (thickness is 1cm);

[0086] (3) After drying and demoulding the material obtained in step (2) (natural drying, demoulding after surface molding), heat preservation at 1900° C. for 30 minutes, and sintering to obtain a ceramic sound-absorbing material.

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Abstract

The inventionprovides a ceramic sound absorbing material and a preparing method and usage thereof. The ceramic sound absorbing material in the invention is obtained mainly by using corundum, silicon carbide, cordierite, silicate, assistant, and a foaming agent,and is a phase-typed porous sound absorbing material, which prevents fire, is weather-proof, has good physical and chemical properties, fully meets sound absorbing and sound insulating requirements simultaneously, can solve the problem of noise pollution during production and lives to the greatest extent, and is low-carbon and environmental-friendly. The preparing method of the ceramic sound absorbing material in the invention has simple processes and low cost, takes short time, and is easy to be implemented. The ceramic sound absorbing material in the invention can be used as a building sound absorbing material, is easy to be constructed, has a good sound absorbing performance and high strength, is fire-proof, damp-proof, antifreeze, anti-aging, and resistant to chemical attack, can be used in long term without any organic volatile matter, and is a green and environmental-friendly sound absorbing and sound insulating material.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a ceramic sound-absorbing material and its preparation method and application. Background technique [0002] With the rapid development of society, noise seems to have become a major nightmare in our daily life. Walking on the streets of the city, you can hear various noises from car exhaust pipes, airplanes flying, and air-conditioning compressors. Disgusting noise. [0003] Sound-absorbing material is a functional material for building decoration. It has the dual requirements of sound absorption and decoration. It must be beautiful and meet the special requirements of sound absorption. Any material can absorb sound, but the degree of absorption varies greatly. It is usually a material with an average sound absorption coefficient greater than 0.2, which is listed as a sound-absorbing material. [0004] The commonly used sound-absorbing and sound-insulating materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B38/02C04B35/10C04B35/565C04B35/195C04B35/622C04B35/634E04B1/82
CPCC04B35/10C04B35/195C04B35/565C04B35/622C04B35/63452C04B38/02C04B38/10C04B2235/3427C04B2235/3445C04B2235/96E04B1/82
Inventor 张勇敢燕翔王熙伟
Owner 中电声韵声学工程技术(北京)有限公司