Water-based damping paint and application thereof in automobile field

A damping coating, water-based technology, applied in polyurea/polyurethane coatings, devices for coating liquid on the surface, coatings, etc., can solve problems such as poor paint film strength and decreased chemical resistance, and achieve improved loss factor, The effect of widening the damping temperature range and improving the strength of the paint film

Active Publication Date: 2019-05-14
WANHUA CHEM GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through experimental verification, it is found that a certain microporous structure in this kind of paint film can significantly improve the loss factor, but the uneven microporous structure will easily lead to poor strength of the paint film and a significant decrease in chemical resistance.

Method used

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  • Water-based damping paint and application thereof in automobile field
  • Water-based damping paint and application thereof in automobile field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Add 30g of emulsion 1 into the paint mixing tank, adjust the speed of the disperser to 600r / min, add 2g of Orotan731A and 0.1g of Tego Foamex1488 in turn and stir for 5min. Add 0.2g of Add 031WUF40, 30g mica powder, 10g talc powder, 15gMH-T70, 0.5g carbon black in sequence, adjust the speed of the disperser to 1500r / min, and stir for 30min.

[0051] Reduce the speed of the disperser to 800r / min, add 0.8gA-801, 11.3g water and 0.1g TegoFoamex1488, stir for 15min and then discharge.

Embodiment 2

[0053] Add 40g of emulsion 1 into the paint mixing tank, adjust the speed of the disperser to 500r / min, add 1.0g of Orotan731A and 0.15g of Tego Foamex1488 in turn and stir for 5min. Add 0.5g of Add 031WUF40, 10g of mica powder, 15g of talc powder, 20g of MH-T70, and 2g of iron black in sequence, adjust the speed of the disperser to 1300r / min, and stir for 30min.

[0054] Reduce the speed of the disperser to 900r / min, add 1.0g A-801, 10.2g water, 0.15g TegoFoamex1488, stir for 15min and then discharge.

Embodiment 3

[0056] Add 35g of emulsion 1 into the paint mixing tank, adjust the speed of the disperser to 600r / min, add 1.5g of BYK-190 and 0.25g of BYK-024 and stir for 5min. Add 1.0g of Add 031WUF40, 25g of mica powder, 15g of talc powder, 10g of MH-T70, and 5g of iron black in sequence, adjust the speed of the disperser to 1500r / min, and stir for 30min.

[0057] Reduce the speed of the disperser to 800r / min, add 0.6gA-801, 6.4g water, 0.25g BYK-024, stir for 5min and then discharge.

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Abstract

The invention provides water-based damping paint and an application thereof in the automobile field. The water-based damping paint is mainly prepared by using the following raw materials according toa mass percentage of a total mass of the raw materials: 30-40% of water-based acrylic emulsion, 10-20% of TPU powder, 20-50% of filler, 0.5-3.0% of a water-based dispersant, 0.2-1.0% of a water-baseddefoamer, 0.2-1.0% of a foaming agent, and 0.2-1.0% of a thickener, wherein a glass-transition temperature of the water-based acrylic emulsion is -20 DEG C to 30 DEG C, preferably -10 DEG C to 10 DEGC; and a melting point of the TPU powder is 70-110 DEG C, preferably 80-90 DEG C. The provided water-based damping paint is capable of realizing a wider damping temperature domain and better chemicalresistance of the damping paint while paint film strength is guaranteed.

Description

technical field [0001] The invention relates to a water-based damping paint and its preparation method and application, which is a water-based damping paint especially suitable for automobiles. Background technique [0002] With the development of social economy, noise pollution has gradually attracted people's attention. As a common means of transportation for modern people, the current production, sales and ownership of automobiles are increasing rapidly. People pay more and more attention to the control of noise inside automobiles during daily use. The control level of the noise in the car has gradually become one of the important symbols to measure the safety and comfort quality of the car. There are many vibration sources in the car, and one of the more effective methods is to use damping materials to reduce vibration and noise inside and outside the car. [0003] At present, the mainstream damping material in the automobile market is asphalt board. This material has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D175/04C09D7/61B05D3/02B05D7/24
Inventor 郝宝祥马吉全李在鹏方璞邓俊英孙家宽
Owner WANHUA CHEM GRP CO LTD
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