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Double-penetration type high-performance noise reduction water-based damping coating and preparation method thereof

A damping coating, high-performance technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of poor damping performance, mechanical properties, corrosion resistance, etc., and achieve the effect of good combination, high damping performance, and reduction of tiny bubbles

Active Publication Date: 2020-04-10
蒋丹烈
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a double-piercing high-performance noise-reducing water-based damping coating and a preparation method thereof. The double-piercing high-performance noise-reducing water-based damping coating has noise-reducing performance, The weighted sound insulation of the base material coated with the double-piercing high-performance noise-reducing water-based damping coating of the present invention is increased by 4dB to 4.2dB, which meets the technical requirements of the water-based damping coating for high-speed trains, and overcomes the damping performance and mechanical properties of the single-resin emulsion coating. , poor corrosion resistance and other defects

Method used

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  • Double-penetration type high-performance noise reduction water-based damping coating and preparation method thereof
  • Double-penetration type high-performance noise reduction water-based damping coating and preparation method thereof

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Embodiment 1

[0037] The preparation method of the hydrated alumina powder of the present embodiment comprises the following steps:

[0038] Step 1. Mix zinc oxide and aluminum powder, add water to the mixed powder, and mix to obtain a slurry; the mass ratio of zinc oxide and aluminum powder is 1:1, and the mass of water added to the mixed powder is aluminum powder 0.5 times the mass;

[0039] Step 2. The slurry described in step 1 was ball milled for 2 hours and dispersed in kerosene, and the kerosene dispersed with the slurry was centrifuged at 1000 r / min for 4 minutes to obtain hydrated alumina powder.

[0040] In this embodiment, the average particle size of the alumina hydrate powder is 1 μm.

Embodiment 2

[0042] The preparation method of the hydrated alumina powder of the present embodiment comprises the following steps:

[0043]Step 1. Mix zinc oxide and aluminum powder, add water to the mixed powder, and mix to obtain a slurry; the mass ratio of zinc oxide and aluminum powder is 1:1, and the mass of water added to the mixed powder is aluminum powder 0.5 times the mass;

[0044] Step 2: The slurry described in step 1 was ball milled for 2 hours and dispersed in kerosene, and the kerosene dispersed with the slurry was centrifuged at 1000 r / min for 3 minutes to obtain hydrated alumina powder.

[0045] In this embodiment, the average particle size of the alumina hydrate powder is 2 μm.

Embodiment 3

[0047] The preparation method of the hydrated alumina powder of the present embodiment comprises the following steps:

[0048] Step 1. Mix zinc oxide and aluminum powder, add water to the mixed powder, and mix to obtain a slurry; the mass ratio of zinc oxide and aluminum powder is 1:1, and the mass of water added to the mixed powder is aluminum powder 0.5 times the mass;

[0049] Step 2. The slurry described in step 1 was ball milled for 2 hours and then dispersed in kerosene, and the kerosene dispersed with the slurry was centrifuged at 1000 r / min for 5 minutes to obtain hydrated alumina powder.

[0050] In this embodiment, the average particle diameter of the hydrated alumina powder is 0.6 μm.

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Abstract

The invention discloses a double-penetration type high-performance noise reduction water-based damping coating which is mainly prepared from the following raw materials in parts by weight: 20-25 partsof water, 50-60 parts of acrylic resin emulsion, 8-12 parts of styrene-acrylic emulsion, 0.5-2.0 parts of defoaming agent, 0.5-1.0 part of nano graphite flake, 2-3 parts of dispersing agent, 0.1-0.3part of preservative, 1.0-1.5 parts of antirust agent, 215-280 parts of hydrated alumina powder and 1.5-2.5 parts of thickening agent. In addition, the invention further provides a preparation methodthe double-penetration type high-performance noise reduction water-based damping coating. The double-penetration type high-performance noise reduction water-based damping coating has noise reducing performance, the weighting sound insulation index of a base material coated with the coating is increased by 4 dB to 4.2 dB, the technical requirements of water-based damping coatings for high-speed trains are met and the defects that single-resin emulsion coatings are poor in damping performance, mechanical performance, corrosion resistance and the like are overcome.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a double-piercing high-performance noise-reducing water-based damping coating and a preparation method thereof. Background technique [0002] Damping coating is a kind of polymer material with noise reduction function. It mainly uses the viscoelastic properties of the polymer material itself to absorb the energy generated by sound vibration, convert it into heat energy and release it, so as to reduce the amplitude of sound vibration and reduce the noise. . Traditional damping coatings such as asphalt boards release gases that are harmful to the human body and the environment during use, which is not conducive to environmental protection. Water-based damping coating is a new kind of non-toxic and environmentally friendly coating, which has been widely used in transportation, home appliances and engineering. [0003] At present, most of the existing water-based dampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D125/14C09D5/08C09D7/61
CPCC08K2003/2227C08K2201/003C08K2201/011C08L2205/04C09D5/08C09D133/04C09D7/61C08L25/14C08K13/02C08K3/04C08K3/22
Inventor 蒋丹烈马洁云
Owner 蒋丹烈
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