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Microporous rock-absorbing sound-insulating board and preparation method thereof

A sound-absorbing and insulating, microporous rock technology, applied in the field of sound-absorbing and insulating materials, can solve the problems of unenvironmental sound-absorbing and insulating raw materials, poor sound-absorbing and insulating effects, etc., and achieves light weight, convenient material selection, and good sound-absorbing and insulating effects Effect

Active Publication Date: 2021-04-30
JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: Aiming at the problems in the prior art that sound-absorbing and insulating materials are not environmentally friendly and have poor sound-absorbing and insulating effects, the purpose of the present invention is to provide a microporous rock absorbing material with good sound-absorbing and sound-insulating properties, high strength and simple structure. Sound insulation board and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The surface layer of the microporous rock sound-absorbing and sound-insulating board is composed of rock particles, perlite particles and high-strength water-based rubber powder in a weight ratio of 1:0.05:0.05, and the back layer is composed of rock particles and high-strength water-based rubber powder in a weight ratio of 1:0.05 composition. The diameter of the rock particles is 0.5-4.5mm, and the diameter of the perlite particles is 1-5mm. Choosing the above-mentioned different diameter rock particles and perlite particles to mix and use can make the raw materials mix more evenly and improve the product strength. High-strength water-based rubber powder includes methyl alkoxy silicone oil 2.5%, carboxymethyl cellulose 10%, sodium dodecylbenzenesulfonate 3.5%, dibutyl tin dilaurate 0.1%, triethanolamine 20%, 10% starch cellulose, 15% glyceride, 5% vinyl chloride acrylate, 10% super rubber powder, and the balance is latex powder. The above raw materials are mixed and st...

Embodiment 2

[0022] The surface layer of the microporous rock sound-absorbing and sound-insulating board is composed of rock particles, perlite particles and high-strength water-based rubber powder in a weight ratio of 1:0.3:0.35, and the back layer is composed of rock particles and high-strength water-based rubber powder in a weight ratio of 1:0.35 composition. The diameter of the rock particles is 0.5-4.5mm, and the diameter of the perlite particles is 1-5mm. Choosing the above-mentioned different diameter rock particles and perlite particles to mix and use can make the raw materials mix more evenly and improve the product strength. High-strength water-based rubber powder includes methyl alkoxy silicone oil 2.5%, carboxymethyl cellulose 10%, sodium dodecylbenzenesulfonate 3.5%, dibutyl tin dilaurate 0.1%, triethanolamine 20%, 10% starch cellulose, 15% glyceride, 5% vinyl chloride acrylate, 10% super rubber powder, and the balance is latex powder. The above raw materials are mixed and sti...

Embodiment 3

[0024] The surface layer of the microporous rock sound-absorbing and sound-insulating board is composed of rock particles, perlite particles and high-strength water-based rubber powder in a weight ratio of 1:0.15:0.3, and the back layer is composed of rock particles and high-strength water-based rubber powder in a weight ratio of 1:0.25 composition. The diameter of the rock particles is 0.5-4.5mm, and the diameter of the perlite particles is 1-5mm. Choosing the above-mentioned different diameter rock particles and perlite particles to mix and use can make the raw materials mix more evenly and improve the product strength. High-strength water-based rubber powder includes methyl alkoxy silicone oil 10%, carboxymethyl cellulose 3%, sodium dodecylbenzenesulfonate 5%, dibutyl tin dilaurate 0.5%, triethanolamine 4%, 10% starch cellulose, 15% glyceride, 10% vinyl chloride acrylate, 40% super rubber powder, and the balance is latex powder. The above raw materials are mixed and stirred...

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Abstract

The invention discloses a microporous rock sound-absorbing and sound-insulating board and a preparation method thereof. It comprises a surface layer and a back layer. Made of granules and high-strength water-based rubber powder raw materials. In the preparation process, molds are used to press the surface layer and the back layer into one piece. The surface layer is mainly used for sound absorption, and the back layer is mainly used for sound insulation to improve mechanical properties; by adjusting the thickness of the surface layer and back layer, it can meet different requirements. The requirements of sound absorption performance and mechanical performance products; the present invention has good sound absorption and insulation effect, high mechanical performance, light weight, sound absorption coefficient reaches 0.8, sound insulation reaches 40dB, and fire resistance reaches GB8624-2012 Class A; the present invention has weather resistance, Moisture-proof and wind-proof, it has the advantages of environmental protection, convenient materials, low cost, etc., and can adapt to extremely harsh environments.

Description

technical field [0001] The invention belongs to the field of sound-absorbing and insulating materials, and in particular relates to a microporous rock sound-absorbing and sound-insulating board applied to sound barrier projects such as railways, highways and subways, and a preparation method thereof. Background technique [0002] Traffic noise will interfere with the normal work, study and life order of residents, schools, enterprises and institutions, reduce people's quality of life, and even affect people's health in severe cases, such as causing cardiovascular diseases and endocrine diseases. Setting up sound barriers is an important measure to control noise, especially traffic noise. At present, there are many types of sound barriers, which can be divided into three categories: organic, inorganic and metal sound barriers according to the material. Most of the organic sound barriers are acrylic transparent boards as the main sound-absorbing and insulating materials, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/32B28B3/00B28B17/02C04B111/52
CPCB28B3/00B28B17/02C04B26/32C04B2111/00612C04B2111/52C04B2201/50C04B24/383C04B24/20C04B24/42C04B24/122C04B24/08C04B24/045C04B18/12C04B14/18
Inventor 许晶晶张玉岁洪少华
Owner JIANGSU XINGUANG ENVIRONMENTAL PROTECTION ENG