Noise reduction damping paste and preparation method thereof

A damping paste and noise reduction technology, applied in the field of damping paste, can solve problems such as noise pollution, machine wear, low toxicity, etc., and achieve the effects of excellent damping, vibration reduction, noise reduction, structural vibration suppression, and strong adhesion

Active Publication Date: 2013-10-23
湖北海风新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the machine is running, friction will be generated in many parts, and the friction will bring noise and heat, which will not only cause noise pollution, but also cause the machine to wear out due to the heat generated
At present, the mechanical damping paste produced in China is only rubber foam type, which is flammable and has low toxicity after burning, and its performance cannot meet the technical requirements; some damping pastes are used as lubricants

Method used

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  • Noise reduction damping paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The damping paste provided in this example is prepared by mixing component A and component B, wherein the preparation method of component A is as follows: weigh polyether 2000, polyether 3050 and TDI, each material and its composition in the component The mass percentage in A is: polyether 2000 41.2% polyether 3050 41.2% TDI 17.6%, add polyether 2000, polyether 3050 and TDI in a clean water bath reactor, raise the temperature in the reactor to 60 °C, Then heat-retain and react at this temperature for 3 hours until the NCO value in the reactor is less than or equal to 5.7%, and discharge to obtain component A;

[0029] The preparation method of component B is as follows: (1), first weigh each component according to the mass percentage of each component, each substance and its mass percentage in component B are:

[0030] Hydrated alumina 37.5% Mica powder 37.5%

[0031] Silica 5% Carbon Black 5% Silicone Oil 1%

[0032] Ethylene Glycol 1% Dibutyl Ester 10% Moka 4%.

[...

Embodiment 2

[0041] The damping paste provided in this example is prepared by mixing component A and component B, wherein the preparation method of component A is as follows: weigh polyether 2000, polyether 3050 and TDI, each material and its composition in the component The mass percentage in A is: polyether 2000 40% polyether 3050 40% TDI 20%, add polyether 2000, polyether 3050 and TDI in a clean water bath reactor, raise the temperature in the reactor to 60 °C, Then heat-retain and react at this temperature for 3 hours until the NCO value in the reactor is less than or equal to 5.7%, and discharge to obtain component A;

[0042] The preparation method of component B is as follows: (1), first weigh each component according to the mass percentage of each component, each substance and its mass percentage in component B are:

[0043] Hydrated alumina 35% Mica powder 45%

[0044] Silica 4% Carbon Black 4% Silicone Oil 0.5%

[0045] Ethylene Glycol 0.5% Dibutyl Ester 8% Moka 3%.

[0046] A...

Embodiment 3

[0051]The damping paste provided in this example is prepared by mixing component A and component B, wherein the preparation method of component A is as follows: weigh polyether 2000, polyether 3050 and TDI, each material and its composition in the component The mass percentage in A is: polyether 2000 45% polyether 3050 40% TDI 15%, add polyether 2000, polyether 3050 and TDI in a clean water bath reactor, raise the temperature in the reactor to 60 ° C, Then heat-retain and react at this temperature for 3 hours until the NCO value in the reactor is less than or equal to 5.7%, and discharge to obtain component A;

[0052] The preparation method of component B is as follows: (1), first weigh each component according to the mass percentage of each component, each substance and its mass percentage in component B are:

[0053] Hydrated alumina 36% Mica powder 36%

[0054] Silica 6% Carbon Black 6% Silicone Oil 1%

[0055] Ethylene Glycol 1% Dibutyl Ester 9% Moka 5%.

[0056] After...

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Abstract

The invention provides a noise reduction damping paste, which is prepared by mixing a component A and a component B together, wherein the component A accounts for 30-50%, the balance being component B. The component A is synthesized from the following materials: polyether 2000, polyether 3050, and 15%-20% of TDI. The component B is composed of hydrated alumina, mica powder, white carbon black, silicone oil, ethylene glycol, dibutyl ester, and moca. The present invention also provides a preparation method of the noise reduction damping paste. The noise reduction damping paste can effective suppress structural vibration and noises caused by the vibration, and has excellent damping performances like noise reduction, sound insulation, sealing, and thermal insulation. The noise reduction damping paste is solvent-free, non-toxic, good in flame resistance, and strong in adhesion, has no cracking and detachment, and is suitable for complex surfaces of steel basic layer with a thickness no more than 5 mm.

Description

technical field [0001] The invention provides a damping paste, in particular to a paste with excellent comprehensive properties such as damping, vibration reduction, noise reduction, sound insulation, sealing, heat insulation, etc., and belongs to the field of machinery. Background technique [0002] When the machine is running, friction will be generated in many parts, and the friction will bring noise and heat, which will not only cause noise pollution, but also cause the machine to wear and tear due to the heat generated. At present, the mechanical damping paste produced in China is only rubber foam type, which is flammable and has low toxicity after burning, and its performance cannot meet the technical requirements; some damping pastes are used as lubricants. Contents of the invention [0003] The invention provides a damping paste with excellent damping, vibration and noise reduction, sound insulation, sealing, heat insulation and other performances. The damping pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/12C08G18/48
Inventor 李楚雄曹学波李巨端刘华忠
Owner 湖北海风新材料股份有限公司
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