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Sound absorbing material and preparation method thereof

A technology of sound-absorbing materials and collagen, which is applied in the field of composite materials to achieve the effects of strong durability, low density and low processing difficulty

Inactive Publication Date: 2017-06-13
GUANGZHOU KAIYAO ASSET MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art, the problem to be solved by the present invention is to provide a sound-absorbing material and a preparation method. The sound-absorbing material uses water-quenched copper slag and cement as the main raw materials, and is prepared by adding waste water from a trotter processing plant. Prepared from protein cement foaming agent, it has the characteristics of low cost, high strength, waterproof, flame retardant and corrosion resistance, and can be widely used to solve pollution problems in industry, urban transportation, urban buildings, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A sound-absorbing material provided in Example 1 is prepared according to the following steps:

[0038] (1) Add calcium hydroxide to the waste water of the trotter processing plant, adjust the pH value to 12, and stir to form a thick paste;

[0039] (2) Add sodium lauryl sulfate and coconut acid diacetamide to the paste described in step (1), the ratio is paste: sodium lauryl sulfate: coconut acid diacetamide The mass ratio=1:1.5:1.5, obtain blowing agent;

[0040] (3) water-quenched copper slag, cement and fly ash are mixed, and the ratio is water-quenched copper slag: cement: the mass ratio of fly ash=0.3:2:1, obtains mixture;

[0041] (4) Add water and foaming agent in the mixture, the ratio is water: foaming agent: the mass ratio of mixture=0.6:0.013:1, stir for 10min, and the rotating speed is 1000r / min to obtain foamed cement slurry;

[0042] (5) The foamed cement slurry was injected into the mold, dried at 110°C for 0.5h, and naturally cured for 72h to obtain t...

Embodiment 2

[0045] A sound-absorbing material provided in Example 2 is prepared according to the following steps:

[0046] (1) Add calcium hydroxide to the waste water of the trotter processing plant, adjust the pH value to 10, and stir to form a thick paste;

[0047](2) Add sodium lauryl sulfate and coconut acid diacetamide to the paste described in step (1), the ratio is paste: sodium lauryl sulfate: coconut acid diacetamide The mass ratio=1:1.5:1.5, obtain blowing agent;

[0048] (3) water-quenched copper slag, cement and fly ash are mixed, and the ratio is water-quenched copper slag: cement: the mass ratio of fly ash=0.05:2:1, obtains mixture;

[0049] (4) Add water and foaming agent in the mixture, the ratio is water: foaming agent: the mass ratio of mixture=0.4:0.0035:1, stir for 5min, and the rotating speed is 1500r / min to obtain foamed cement slurry;

[0050] (5) The foamed cement slurry was injected into the mold, dried at 80°C for 2 hours, and naturally cured for 72 hours to o...

Embodiment 3

[0053] A sound-absorbing material provided in Example 3 is prepared according to the following steps:

[0054] (1) Calcium hydroxide is added to the waste water of the pig's trotter processing plant, and the pH value is adjusted to 11, and stirred to form a thick paste;

[0055] (2) Add sodium lauryl sulfate and coconut acid diacetamide to the paste described in step (1), the ratio is paste: sodium lauryl sulfate: coconut acid diacetamide The mass ratio=1:1.5:1.5, obtain blowing agent;

[0056] (3) water-quenched copper slag, cement and fly ash are mixed, and the ratio is water-quenched copper slag: cement: the mass ratio of fly ash=0.15:2:1, obtains mixture;

[0057] (4) Add water and foaming agent in the mixture, the ratio is water: foaming agent: the mass ratio of mixture=0.5:0.01:1, stir for 7min, and the rotating speed is 1200r / min to obtain foamed cement slurry;

[0058] (5) The foamed cement slurry was injected into the mold, dried at 105°C for 1 hour, and naturally c...

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Abstract

The invention relates to a sound absorbing material and a preparation method thereof. The sound absorbing material is prepared by the following steps of using wide-source water-quenching copper slag and processing plant wastewater containing collagen as main raw materials; mixing, foaming, injecting into a die, drying, and curing, so as to obtain the sound absorbing material. The prepared sound absorbing material has the advantages that the wet unit weight is low, the weight is light, the compressive strength and bending strength are high, the sound absorbing coefficient is high, the manufacturing cost is low, and the processing is simple; compared with common fiber sound absorbing material, the characteristics of water proofing, flame retardancy and corrosion resistance are realized; the durability is strong, the sound absorbing material is very suitable for governing various noises, such as industrial plants, KTV (Karaoke), subways, highways, railways and airports, and the application prospect is wide.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a sound-absorbing material and a preparation method. Background technique [0002] In recent years, my country's refined copper (electrolytic copper) output has grown rapidly. In 2012, it was 6.0576 million tons, a year-on-year increase of 17.0%. In 2013, the output was 6.8388 million tons, a year-on-year increase of 12.9%. . Refined copper is mainly based on the pyrometallurgy process. The pyrometallurgical smelting process produces a large amount of water-quenched copper slag, which has a large stockpile, which not only occupies a large area of ​​land, but also causes serious pollution to the surrounding environment and leads to a huge waste of resources. [0003] Pig trotter processing plants tend to produce waste water with high COD, high BOD, and high salt content during cleaning, stewing, etc., and the treatment and improvement of waste water will increase the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B28/34C04B38/10C04B111/52C04B111/28C04B111/27
CPCC04B28/04C04B28/06C04B28/34C04B38/10C04B2111/27C04B2111/28C04B2111/52C04B7/02C04B22/0046C04B22/064C04B24/16C04B24/122C04B18/144C04B18/08C04B22/002C04B7/32
Inventor 曹蕊
Owner GUANGZHOU KAIYAO ASSET MANAGEMENT CO LTD
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