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Water-diluted alkyd paint and preparation method thereof

A technology of alkyd paint and dilution water, applied in the field of paint, can solve problems such as air pollution, achieve the effects of reducing use, stabilizing emulsion, and ensuring physical and mechanical properties

Inactive Publication Date: 2013-07-31
SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Globally, the coatings industry has achieved great development, and my country's coatings industry has achieved remarkable results. The total output of coating products has ranked first in the world. In 2012, the total output of coatings was 11 million tons, but , most of them are traditional solvent-based coatings, and huge organic solvent emissions will cause serious air pollution. Therefore, environmentally friendly coatings that use water as a solvent will be of great significance to environmental protection. People's requirements for environmental protection and The awareness of paint pollution is getting higher and higher. Countries all over the world are strictly controlling the emission of VOC (volatile organic components), restricting the production and use of high-VOC paint products, and it has been raised to the height of laws and regulations. Energy saving and emission reduction has become a The Chinese government has made a solemn commitment to the whole world. Therefore, it is imperative to develop and produce environmentally friendly coating products.

Method used

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  • Water-diluted alkyd paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of alkyd enamel diluted with water

[0025] A. Preparation of dilution water:

[0026] 1. Sodium dodecylbenzenesulfonate 0.1%~1.5%

[0027] 2. Tap water 98%~99.5%

[0028] 3. Defoamer 0.4%~1%

[0029] The preparation process is as follows:

[0030] 1. Measuring and adding the tap water of the formula;

[0031] 2. Adjust the stirring speed to 400~500rpm;

[0032] 3. Slowly add surfactant from the center of the vortex. The speed of addition should not exceed the absorption speed of water, that is, the surfactant cannot float on the water surface. After adding, continue stirring for 30-40 minutes;

[0033] 4. Slowly add defoamer during stirring, and continue stirring for 20-30 minutes;

[0034] 5. The test is completed when there is no insoluble matter, and the homogeneous phase is stable and transparent.

[0035] B. Composition of finished paint:

[0036] Medium oil alkyd resin-45%~50%

[0037] Coloring pigment 5%~20%

[0038] Filling pigment 0.1~...

Embodiment 2

[0048] Preparation of Water-diluted Alkyd Steel Structure Paint

[0049] A. Preparation of dilution water:

[0050] 1. Nonylphenol epoxy vinyl methyl ether 0.1%~1%

[0051] 2. Tap water 98%~99.5%

[0052] 3. Defoamer 0.3%~1%

[0053] The preparation process is as follows:

[0054] 1. Measuring and adding the tap water of the formula;

[0055] 2. Adjust the stirring speed to 500~600rpm;

[0056] 3. Slowly add surfactant from the center of the vortex. The speed of addition should not exceed the absorption speed of water, that is, the surfactant cannot float on the water surface. After adding, continue stirring for 20-30 minutes;

[0057]4. Slowly add defoamer during stirring, and continue stirring for 10-20 minutes;

[0058] 5. The test is completed when there is no insoluble matter, and the homogeneous phase is stable and transparent.

[0059] B. Composition of finished paint

[0060] Medium oil alkyd resin II 30%~40%

[0061] Coloring pigment 5%~15%

[0062] Spec...

Embodiment 3

[0074] Preparation of Alkyd Blending Lacquer Diluted with Water

[0075] A. Preparation of dilution water:

[0076] 1. Sodium Tetradecylbenzene Sulfonate 0.2%~2.0%

[0077] 2. Tap water 97%~99.3%

[0078] 3. Defoamer 0.5%~1%

[0079] The preparation process is as follows:

[0080] 1. Measuring and adding the amount of tap water;

[0081] 2. Adjust the stirring speed to 550~650rpm;

[0082] 3. Slowly add surfactant from the center of the vortex, and the speed of addition should not exceed the absorption speed of water, that is, the surfactant cannot float on the water surface, and continue stirring for 30 to 60 minutes after adding;

[0083] 4. Slowly add defoamer while stirring, and continue stirring for 25-35 minutes;

[0084] 5. The inspection is completed when there is no insoluble matter, and the homogeneous phase is stable and transparent.

[0085] B. Composition of finished paint

[0086] Medium oil alkyd resin III 35%~45%

[0087] Coloring pigment 5%~15% ...

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Abstract

The invention discloses water-diluted alkyd paint which comprises the following components in percentage by weight: 30-50% of alkyd resin, 5-30% of tinting pigment, 0.1-20% of filler pigment, 0.5-2% of assistant and 10-40% of dilution water, wherein the dilution water is tap water with a certain amount of specific surfactant; the surfactant refers to sodium sulfonate or nonylphenol polyoxyethylene ether and derivative thereof (bigger than 10 alkyls); and the dilution water comprises the following components in percentage by weight: 0.1-5% of surfactant, 95-99.5% of tap water and 0.5-2% of defoaming agent. According to the invention, the dilution water is used instead of organic solvent to greatly reduce the use of organic solvent, and the inherent physical and mechanical properties of the alkyd paint are ensured; and alkoxy groups in the dilution water and carbon groups in the alkyd resin are connected through hydrogen bonds (i.e. subjected to hydrogen bonding reaction), and the both are combined to compose a high-molecular-weight polymer grid structure so as to enhance the affinity of the alkyd resin, so that the formed emulsion is very stable, and the prepared paint is very stable in storage performance.

Description

technical field [0001] The invention relates to the field of paints, in particular to a water-diluted alkyd paint and provides a reasonable preparation method for it. Background technique [0002] Globally, the coatings industry has achieved great development, and China's coatings industry has achieved remarkable results. The total output of coating products has ranked first in the world. In 2012, the total output of coatings was 11 million tons, but , most of them are traditional solvent-based coatings, and huge organic solvent emissions will cause serious air pollution. Therefore, environmentally friendly coatings that use water as a solvent will be of great significance to environmental protection. People's requirements for environmental protection and The awareness of paint pollution is getting higher and higher. Countries all over the world are strictly controlling the emission of VOC (volatile organic components), restricting the production and use of high-VOC paint pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08
Inventor 徐泽孝
Owner SUZHOU JIREN HIGH TECH MATERIAL CO LTD
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