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Novel composite new material high-strength rubber sound insulation pad and preparation method thereof

A new material and high-strength technology, applied in the field of building materials, can solve the problems of poor noise reduction effect of sound insulation pads, and achieve the effect of good tear strength, high density and good sound insulation effect.

Inactive Publication Date: 2020-11-27
广州宝来声学材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Regarding the above-mentioned related technologies, the inventor believes that there is a sound energy absorbed by the sound insulation pad that is finally converted into heat energy due to the continuous absorption or rebound of part of the sound through the porous structure and elasticity of the sound insulation pad. Therefore, the sound penetration rate is One of the key elements to determine the performance of rubber sound insulation pads. However, rubber sound insulation pads usually require a certain degree of compactness. When the density of rubber is too large, the effect of sound insulation pads on reducing noise is not good. Defects

Method used

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  • Novel composite new material high-strength rubber sound insulation pad and preparation method thereof
  • Novel composite new material high-strength rubber sound insulation pad and preparation method thereof
  • Novel composite new material high-strength rubber sound insulation pad and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-3

[0069] The embodiment of this application discloses a new composite new material high-strength rubber sound insulation pad, which includes the following components:

[0070] Rubber, foam cotton, adhesives.

[0071] The rubber is a compound of styrene-butadiene rubber and nitrile rubber;

[0072] The foamed cotton is a composite of polyurethane foamed cotton and styrene-butadiene-styrene foamed cotton;

[0073] Adhesives consist of the following components:

[0074] Triphenylmethane triisocyanate, neoprene, polydimethylmethylvinylsiloxane, polyurethane emulsion, methyl vinyl ether-maleic anhydride copolymer, zinc oxide, magnesium oxide, organic solvent.

[0075] The organic solvent is ethyl acetate.

[0076] In embodiment 1-3, the input amount (unit Kg) of each component of adhesive is shown in Table 2 for details

[0077] Table 2

[0078]

[0079]

[0080] In embodiment 1-3, the input amount (unit Kg) of each component of novel composite new material high-strength r...

Embodiment 4

[0090] The embodiment of this application discloses a kind of preparation method of adhesive:

[0091] Compared with embodiment 2, the difference only lies in:

[0092] In the preparation method of adhesive:

[0093] Step 1), adding ethyl acetate, chloroprene rubber, and zinc oxide together into the stirring tank, 60r / min, stirring for 7min, stirring evenly to obtain the first mixture;

[0094] Step 2), add triphenylmethane triisocyanate, polydimethylmethylvinylsiloxane, polyurethane emulsion, methyl vinyl ether-maleic anhydride copolymer to the first mixture, 60r / min, stir for 15min , stir evenly, extract 80% of the volatilized ethyl acetate under the pressure of 0.6Mpa, obtain the second mixture;

[0095] Step 3), adding magnesium oxide to the second mixture, 60r / min, stirring for 8min, stirring evenly to obtain the adhesive;

[0096] Step 4), styrene-butadiene rubber, nitrile rubber, polyurethane foam and styrene-butadiene-styrene foam are added to the crusher and crushe...

Embodiment 5

[0099] The embodiment of this application discloses a kind of preparation method of adhesive:

[0100] Compared with embodiment 2, the difference only lies in:

[0101] In the preparation method of adhesive:

[0102] Step 1), adding ethyl acetate, chloroprene rubber, and zinc oxide together into the stirring tank, 60r / min, stirring for 3min, stirring evenly to obtain the first mixture;

[0103] Step 2), add triphenylmethane triisocyanate, polydimethylmethylvinylsiloxane, polyurethane emulsion, methyl vinyl ether-maleic anhydride copolymer to the first mixture, 60r / min, stir for 7min , stir evenly, extract 90% of the volatilized ethyl acetate under the pressure of 0.2Mpa, obtain the second mixture;

[0104] Step 3), adding magnesium oxide to the second mixture, 60r / min, stirring for 3min, stirring evenly to obtain the adhesive;

[0105] Step 4), styrene-butadiene rubber, nitrile rubber, polyurethane foam and styrene-butadiene-styrene foam are added to the crusher and crushed...

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Abstract

The invention relates to a novel composite new material high-strength rubber sound insulation pad and a preparation method thereof. The novel composite new material high-strength rubber sound insulation pad comprises the following components in parts by mass: 35-45 parts of rubber; 65 to 75 parts of foam cotton; 10 to 20 parts of an adhesive; the adhesive comprises the following components in parts by mass: 18-20 parts of triphenylmethane triisocyanate; 95 to 105 parts of chloroprene rubber; 5 to 7 parts of polydimethylvinylsiloxane; 2-4 parts of a polyurethane emulsion; 5-7 parts of a methylvinyl ether-maleic anhydride copolymer; 4-6 parts of zinc oxide; 3-5 parts of magnesium oxide; and 300 to 340 parts of an organic solvent. The rubber sound insulation pad has the effect of improving the noise reduction capability of the rubber sound insulation pad.

Description

technical field [0001] The application relates to the field of building materials, in particular to a novel composite new material high-strength rubber sound insulation pad and a preparation method thereof. Background technique [0002] At present, the rubber sound insulation mat is made of rubber particles and rubber foam particles combined with adhesive under high temperature and high pressure. It is a durable sound-proof and shock-absorbing floor material, which can effectively absorb the vibration energy transmitted to the material and reduce impact sound and airborne sound. , can effectively reduce noise. [0003] Rubber sound insulation pads are mainly used for various types of foundations and roofs. During construction, a layer of sound insulation pads is placed on the reinforced concrete floor to form a discontinuous structure between the floor and the floor, and then the floor is paved. As a result, solid sound transmission is greatly alleviated, and the sound insu...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L9/06C08L75/04C08L53/02C08L11/00C08L83/07C08L29/10C08K13/02C08K5/134C08K5/13C08K3/22C08K5/29C08K5/3492
CPCC08L9/02C08L2205/02C08L2205/035C08L2201/08C08L2201/02C08K2003/2296C08K2003/222C08L9/06C08L75/04C08L53/02C08L11/00C08L83/04C08L29/10C08K13/02C08K5/1345C08K5/13C08K3/22C08K5/29C08K5/34924
Inventor 陈水衡卢俊
Owner 广州宝来声学材料有限公司
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