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Water-based sound-proof damping coating and preparation method thereof

A damping coating, water-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problem of not taking into account the performance of vibration and noise reduction, high damping, etc., to achieve excellent vibration and noise reduction effect, comprehensive performance improvement, restraint Vibration reduction effect

Active Publication Date: 2010-11-24
BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a water-based sound-insulating and damping coating, which can well solve the problems in the prior art that cannot take into account good vibration and noise reduction performance, wide operating temperature and noise frequency range, and environmental protection characteristics. It has the characteristics of high damping, high sound insulation, high solid content, quick drying, and excellent environmental protection performance. It has excellent vibration and noise reduction effects under a wide range of operating temperature and noise frequency. At the same time, it takes into account flame retardant, environmental protection and convenient construction. Features

Method used

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  • Water-based sound-proof damping coating and preparation method thereof
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  • Water-based sound-proof damping coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0041] Take 10 parts of water and 0.2 parts of wetting and dispersing agent, stir and mix evenly, add 10 parts of talc powder and 5 parts of calcium carbonate under high-speed dispersion conditions, and prepare an inorganic filler water dispersion slurry.

[0042] Under high-speed dispersion conditions, polymer emulsion A and polymer emulsion B (see Table 1 for the type, dosage and glass transition temperature of the emulsion) were added to the inorganic filler water dispersion slurry, and then 5 parts of aluminum hydroxide and 5 parts of zinc borate were added in sequence. Then add 30 parts of mica powder, 0.1 parts of reinforcing fiber, 0.2 parts of antifungal agent and 2 parts of defoamer, and finally add 0.5 parts of thickener to adjust the consistency, and then the water-based sound insulation and damping coating for vehicles can be prepared.

[0043] Table 1

[0044]

[0045] From figure 1 It can be seen from the figure that by adjusting the type and amount of polyme...

Embodiment 4-6

[0047]Take 15 parts of water and 0.5 parts of wetting and dispersing agent and stir and mix evenly, add filler A and filler B under high-speed dispersion conditions (see Table 2 for the type and amount of filler), and prepare water-dispersed slurry of inorganic filler.

[0048] Under high-speed dispersion conditions, add 10 parts of polyurethane emulsion and 15 parts of pure acrylic emulsion to the inorganic filler water dispersion slurry, then add 10 parts of magnesium hydroxide and 5 parts of aluminum phosphate in sequence, and then add filler C (see Table 2 for the type and amount of filler ), 0.1 part of reinforcing fiber, 0.2 part of antifungal agent and 2 parts of defoamer, and finally add 0.5 part of thickener to adjust the consistency, and the water-based sound-proof and damping coating for vehicles can be prepared.

[0049] Table 2

[0050]

[0051] From figure 2 It can be seen from the figure that through the adjustment of inorganic fillers, water-based sound-in...

Embodiment 7-9

[0053] Take 20 parts of water and 0.8 parts of wetting and dispersing agent, stir and mix evenly, and add 15 parts of montmorillonite and 15 parts of calcium carbonate under high-speed dispersion conditions to prepare water-dispersed slurry of inorganic filler.

[0054] Under high-speed dispersion conditions, add 5 parts of vinyl acetate-ethylene copolymer emulsion and 25 parts of styrene-acrylic emulsion to the inorganic filler water dispersion slurry, and then add flame retardant A and flame retardant B in sequence (see Table 3 for the type and amount of flame retardant ), then add 25 parts of mica powder, 0.1 part of reinforcing fiber, 0.2 part of antifungal agent and 2 parts of defoamer, and finally add 0.5 part of thickener to adjust the consistency, and then the water-based sound-proof and damping coating for vehicles can be prepared.

[0055] table 3

[0056]

[0057] Table 4

[0058]

[0059] Table 4 shows the flame retardant performance data of water-based soun...

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Abstract

The invention discloses a water-based sound-proof damping coating and a preparation method thereof. The water-based sound-proof damping coating comprises the following raw materials in part by weight: 15 to 35 parts of polymer emulsion, 35 to 55 parts of inorganic filler, 10 to 20 parts of powdery flame retardant, 2 to 5 parts of auxiliary agent, and 10 to 20 parts of deionized water. The preparation method comprises the following steps of: uniformly mixing the deionized water and a wetting and dispersing agent, and adding part of inorganic filler with stirring at a high speed to prepare inorganic filler water dispersible slurry; and adding the polymer emulsion into the inorganic filler water dispersible slurry with stirring at the high speed, sequentially adding the powdery flame retardant, the rest part of inorganic filler, reinforcing fibers, a mould inhibitor and an antifoaming agent, and finally adding a thickening agent to adjust consistency. The coating of the invention has excellent vibration and noise reduction effect, is mainly used for internal coating of carriage floors, side walls and roofs of vehicles, and can play a good role in inhibiting vibration and reducing noise.

Description

technical field [0001] The invention relates to a water-based sound-insulating and damping coating and a preparation method thereof, in particular to a water-based sound-insulating and damping coating for vehicles with the characteristics of high damping, high sound insulation, high solid content, fast drying, and excellent environmental protection performance, and its preparation The method, the water-based sound-insulating and damping coating is particularly suitable for applications in the field of vehicle vibration and noise reduction, and the present invention can also be applied to other similar fields. Background technique [0002] With the pursuit of high-quality life and the enhancement of environmental protection awareness in modern society, higher requirements are put forward for reducing the vibration and noise of vehicles. Damping material vibration and noise reduction technology is one of the methods to effectively suppress vibration and noise. The commonly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D133/04C09D131/04C09D175/04C09D7/12
Inventor 胡钊罗仡科贺才春谭亮红类成林徐波
Owner BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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