Aqueous damping paint and preparation method thereof

A damping coating, water-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of inconvenient processing and use, and achieve the effects of high elastic modulus, simple production method and improved compatibility.

Inactive Publication Date: 2012-02-01
上海天地涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to overcome the shortcomings of the above-mentioned existing damping coatings that use toxic organic solvents and inconvenient processing and manufacture, and provide a water-based damping coating

Method used

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  • Aqueous damping paint and preparation method thereof
  • Aqueous damping paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A water-based damping paint comprises the following components by weight percentage: 30% of acrylic emulsion, 10% of PUD, 5% of protective colloid, 46% of filler, and 9% of deionized water.

[0024] The filler includes 3% of precipitated barium sulfate, 6% of talcum powder, 5% of mica powder, 11% of light calcium carbonate, 12% of wollastonite powder, 4% of expansive soil, 4% of titanium dioxide and 1% of carbon black. The protective colloid is a mixture of hydroxyethyl cellulose and sodium poly(meth)acrylate. The PUD is an aqueous polyurethane dispersion.

[0025] Preparation method: According to the production volume, select equipment and tools such as dispersing cylinder and dispersing machine, and select the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0026] At room temperature, add half of the formula amount of water into the disperser, start the disperser, and s...

Embodiment 2

[0029] A water-based damping paint comprises the following components by weight percentage: 31% of acrylic emulsion, 11% of PUD, 6% of protective colloid, 43% of filler, and 9% of deionized water.

[0030] The filler includes 3% of precipitated barium sulfate, 5% of talc powder, 5% of mica powder, 10% of light calcium carbonate, 11% of wollastonite powder, 4% of expansive soil, 4% of titanium dioxide and 1% of carbon black. The protective colloid is a mixture of hydroxyethyl cellulose and sodium poly(meth)acrylate. The PUD is an aqueous polyurethane dispersion.

[0031] Preparation method: According to the production volume, select equipment and tools such as dispersing cylinder and dispersing machine, and select the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0032] At room temperature, add half of the formula amount of water into the disperser, start the disperser, and sti...

Embodiment 3

[0035] A water-based damping paint comprises the following components by weight percentage: 35% of acrylic emulsion, 8% of PUD, 6% of protective colloid, 43% of filler, and 8% of deionized water.

[0036] The filler includes 3% of precipitated barium sulfate, 5% of talc powder, 5% of mica powder, 10% of light calcium carbonate, 11% of wollastonite powder, 4% of expansive soil, 4% of titanium dioxide and 1% of carbon black. The protective colloid is a mixture of hydroxyethyl cellulose and sodium poly(meth)acrylate. The PUD is an aqueous polyurethane dispersion.

[0037] Preparation method: According to the production volume, select equipment and tools such as dispersing cylinder and dispersing machine, and select the power of the machine. In principle, the higher the power, the easier it is to disperse the material, and make sure it is clean and trouble-free.

[0038] At room temperature, add half of the formula amount of water into the disperser, start the disperser, and stir...

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Abstract

The invention provides an aqueous damping paint, comprising the following ingredients: 25-35 wt% of acrylic acid emulsion, 8-10 wt% of PUD, 4-6 wt% of protective colloid, 40-50 wt% of filling material, and 5-15 wt% of deionized water. The invention also provides a method for preparing the aqueous damping paint. The aqueous damping paint is a multi-ingredient damping paint, wherein, the base material comprises two polymers, latex interpenetrating polymer network (LIPN) is used for preparing, so that some defects of polymer blend are overcome, compatibility of ingredients is improved, and the damping temperature range is widen. According to the invention, water is used as the diluent, so that poisonous organic solvent causing environmental pollution is avoided, and the preparation method is simple. The glass transition temperature transition region is larger than the actual used temperature range of the aqueous damping paint, and the paint has high elastic modulus, large elongation at break, and large tensile strength in the used temperature range, and can form a thick coating.

Description

technical field [0001] The invention relates to a water-based damping coating and a preparation method thereof. Background technique [0002] my country's automobile industry is in a period of rapid development, and the current automobiles are more and more high-end, which puts forward higher requirements for the performance of thermal insulation, shockproof and sound-absorbing coatings coated on automobile bodies. There are many kinds of vibration sources on the car, and the vibration and noise generated by them will cause serious harm, such as loosening the connecting parts of the car body, affecting the normal operation of the instruments and meters in the car, reducing the accuracy of use, etc., and the car is running at high speed. The bottom of the car and the fenders of the wheels are often impacted and washed by sand, gravel and sewage. The coating on the bottom of the car is easily damaged and the bottom of the car is eroded. Therefore, it is necessary to apply coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/04C09D7/12
Inventor 朱正国
Owner 上海天地涂料有限公司
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