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High-weather-resistance water-based paint and preparation method thereof

A water-based coating, high weather resistance technology, applied in coating, organic chemistry, etc., can solve problems such as aging of paint film, affecting the use of paint, and the decline of its own performance

Inactive Publication Date: 2020-12-01
陈金姑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing water-based coatings will be exposed to light during use. When exposed to light for a long time, the paint film will undergo photochemical reactions, and then the paint film will age, making its own performance decline, and then the protective effect cannot be achieved, which affects the use of the paint.

Method used

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  • High-weather-resistance water-based paint and preparation method thereof
  • High-weather-resistance water-based paint and preparation method thereof
  • High-weather-resistance water-based paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A highly weather-resistant water-based paint, made of the following raw materials in parts by weight: 80 parts of water-based acrylic resin, 1 part of isophorone, 5 parts of light-resistant filler, 0.5 part of magnesium stearate, 0.8 part of titanium dioxide, and 20 parts of deionized water ;

[0045] The water-based paint is made by the following steps:

[0046] Step S1: Add water-based acrylic resin, isophorone, and deionized water into the stirring tank, and stir for 10 minutes at a rotation speed of 500 r / min to obtain the first mixture;

[0047] Step S2: Add light-resistant fillers, magnesium stearate, and titanium dioxide to the first mixture prepared in step S1, and stir for 20 minutes at a rotating speed of 500 r / min to obtain a second mixture;

[0048] Step S3: after grinding the second mixture prepared in step S2, passing through a 1250-mesh sieve to obtain a water-based paint.

[0049] Described light-resistant filler is made by following steps:

[0050] S...

Embodiment 2

[0057] A highly weather-resistant water-based paint, made of the following raw materials in parts by weight: 90 parts of water-based acrylic resin, 2 parts of isophorone, 6 parts of light-resistant filler, 1 part of magnesium stearate, 1 part of titanium dioxide, and 23 parts of deionized water ;

[0058] The water-based paint is made by the following steps:

[0059] Step S1: Add water-based acrylic resin, isophorone, and deionized water into the stirring tank, and stir for 10 minutes at a rotating speed of 800 r / min to obtain the first mixture;

[0060] Step S2: Add light-resistant fillers, magnesium stearate, and titanium dioxide to the first mixture prepared in step S1, and stir for 20 minutes at a rotation speed of 800 r / min to obtain a second mixture;

[0061] Step S3: after grinding the second mixture prepared in step S2, passing through a 1250-mesh sieve to obtain a water-based paint.

[0062] Described light-resistant filler is made by following steps:

[0063] Step...

Embodiment 3

[0070] A highly weather-resistant water-based paint, made of the following raw materials in parts by weight: 100 parts of water-based acrylic resin, 3 parts of isophorone, 8 parts of light-resistant filler, 2 parts of magnesium stearate, 1.5 parts of titanium dioxide, and 25 parts of deionized water ;

[0071] The water-based paint is made by the following steps:

[0072] Step S1: Add water-based acrylic resin, isophorone, and deionized water into the stirring tank, and stir for 15 minutes at a rotating speed of 800 r / min to obtain the first mixture;

[0073]Step S2: Add light-resistant fillers, magnesium stearate, and titanium dioxide to the first mixture prepared in step S1, and stir for 30 minutes at a rotation speed of 800 r / min to obtain a second mixture;

[0074] Step S3: after grinding the second mixture prepared in step S2, passing through a 1250-mesh sieve to obtain a water-based paint.

[0075] Described light-resistant filler is made by following steps:

[0076] ...

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Abstract

The invention discloses a high-weather-resistance water-based paint and a preparation method thereof. The water-based paint is prepared from the following raw materials in parts by weight: 80-100 parts of water-based acrylic resin, 1-3 parts of a leveling agent, 5-8 parts of a light-resistant filler, 0.5-2 parts of a dispersing agent, 0.8-1.5 parts of titanium dioxide and 20-25 parts of deionizedwater. The light-resistant filler is prepared and can generate nitroxide free radicals after being illuminated; the nitroxide free radicals can capture free radicals generated by a material and deactivate the free radicals to generate ester; the ester can react with peroxide free radicals to regenerate nitroxide free radicals, so light energy is consumed; electron cloud density on oxygen atoms inthe light-resistant filler is far greater than electron cloud density on triazole ring nitrogen atoms, so the light-resistant filler is strongly alkaline; the electron cloud density is transferred tothe triazole ring nitrogen atoms after the light energy is absorbed, so the light energy is converted into heat energy; and the light-resistant filler is not easy to separate out from the surface of apolymer, so the weather resistance of the paint is more durable.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and in particular relates to a highly weather-resistant water-based paint and a preparation method thereof. Background technique [0002] Coatings, traditionally called paints in China, are coatings on the surface of objects to be protected or decorated, and can form a continuous film firmly attached to the object to be coated, usually based on resin, oil, or emulsion. Adding or not adding pigments, fillers, adding corresponding additives, viscous liquid prepared with organic solvent or sodium alkylbenzene sulfonate, coating is a kind of material, which can be coated on objects with different construction techniques On the surface, a solid film with strong adhesion, certain strength and continuity is formed. The film formed in this way is commonly called a coating film, also known as a paint film or a coating. The coating on the surface of an object can be well bonded to the base materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/48C08B37/08C07D401/14
CPCC07D401/14C08B37/003C08L2201/08C09D133/00C09D7/48C08L5/08
Inventor 陈金姑
Owner 陈金姑