Environment-friendly water-based paint and preparation method thereof

A water-based paint, environmental protection technology, applied in the direction of coating, etc., can solve the problems of affecting the surface smoothness of the coating film, reducing the physical properties of the water-based paint, and poor stain resistance of the coating film, so as to improve the stain resistance and be suitable for Effect of mass production and improvement of aging resistance

Inactive Publication Date: 2019-01-11
成都道立福科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high surface tension of water, the adhesion of the coating film of the water-based paint to the substrate is poor, which reduces the physical properties of the water-based paint; it is easy to produce shrinkage cavities, which not only affects the surface smoothness of the coating film, but also makes the coating film durable. Poor staining ability

Method used

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  • Environment-friendly water-based paint and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] An environmentally friendly water-based paint, comprising the following components in parts by mass: 15 parts of water, 10 parts of hydroxyacrylic resin, 7 parts of silicone-modified polysiloxane emulsion, 10 parts of pigment, 5 parts of dispersant, defoaming agent 2 parts of agent, 1 part of leveling agent;

[0028] The dispersant is a composite dispersant, and the composite dispersant is composed of rutile nano-titanium dioxide and talc powder; the mass ratio of the rutile nano-titanium dioxide and talc powder is 3:1.

[0029] The preparation method of described environment-friendly water-based paint, comprises the steps:

[0030] (1) Add the water, hydroxyacrylic resin, and silicone-modified polysiloxane emulsion in parts by mass to a mixer, and stir for 1 hour at a rotating speed of 800 r / min to obtain a mixed solution;

[0031] (2) Add the pigment and the dispersant of the mass parts in the said mixed liquid successively, continue to stir 0.5h under 400r / min, obta...

Embodiment 2

[0035] An environmentally friendly water-based paint, comprising the following components by mass parts: 25 parts of water, 20 parts of hydroxyl acrylic resin, 12 parts of silicone modified polysiloxane emulsion, 15 parts of pigment, 7 parts of dispersant, defoaming agent 4 parts of agent, 3 parts of leveling agent;

[0036] The dispersant is a composite dispersant, and the composite dispersant is composed of rutile nano-titanium dioxide and talc powder; the mass ratio of the rutile nano-titanium dioxide and talc powder is 4:1.

[0037] The preparation method of described environment-friendly water-based paint, comprises the steps:

[0038] (1) Add the water, hydroxyacrylic resin, and silicone-modified polysiloxane emulsion in parts by mass to a mixer, and stir for 2 hours at a rotating speed of 1000 r / min to obtain a mixed solution;

[0039] (2) Add the pigment and the dispersant of the mass parts in the said mixed liquid successively, continue to stir 1h under 500r / min, obt...

Embodiment 3

[0043] An environmentally friendly water-based paint, comprising the following components in parts by mass: 17 parts of water, 16 parts of hydroxyacrylic resin, 10 parts of silicone-modified polysiloxane emulsion, 12 parts of pigment, 5 parts of dispersant, defoaming agent 3 parts of agent, 2 parts of leveling agent;

[0044] The dispersant is a composite dispersant, and the composite dispersant is composed of rutile nano-titanium dioxide and talc powder; the mass ratio of the rutile nano-titanium dioxide and talc powder is 3:1.

[0045] The preparation method of described environment-friendly water-based paint, comprises the steps:

[0046] (1) Add the water, hydroxyacrylic resin, and silicone-modified polysiloxane emulsion in parts by mass to a mixer, and stir for 1.5 h at a rotating speed of 900 r / min to obtain a mixed solution;

[0047] (2) Add the pigment and the dispersant of the mass parts in the said mixed liquid successively, continue to stir 0.7h under 450r / min, obt...

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Abstract

The invention provides an environment-friendly water-based paint and a preparation method thereof. The environment-friendly water-based paint comprises the following components in parts by weight: 15-25 parts of water, 10-20 parts of hydroxy acrylic resin, 7-12 parts of organic silicon modified polysiloxane emulsion, 10-15 parts of pigment, 5-7 parts of a dispersing agent, 2-4 parts of a de-foaming agent and 1-3 parts of a flatting agent. The preparation method comprises the following steps: adding water, hydroxy acrylic resin and organic silicon modified polysiloxane emulsion into a stirrer and stirring, thereby acquiring a mixed solution; adding pigment and the dispersing agent into the mixed solution in turn, and continuing to stir, thereby acquiring a mixed slurry; grinding the slurrytill the fineness of the mixed slurry is controlled within 20-30mum, thereby acquiring a ground material; putting the ground material into a paint mixing tank, adding the de-foaming agent and the flatting agent in turn, and stirring, thereby acquiring the environment-friendly water-based paint. The environment-friendly water-based paint provided by the invention has the advantages that the surfacetension of the water-based paint in water is greatly reduced, the adhesive force of water-based paint coating to the substrate is enhanced, shrinking cavities are difficult to form on the coating, the surface evenness of the coating is improved and the stain resistance of the coating is greatly enhanced.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an environmentally friendly water-based paint and a preparation method thereof. Background technique [0002] Water-based paint uses non-toxic, harmless and non-polluting water as a solvent or thinner, and does not artificially add organic solvents, especially benzene, toluene, xylene, formaldehyde, free TDI and toxic heavy metals, etc. Compared with traditional paints , which greatly reduces the emission of VOC in the coating, and has the excellent quality of non-toxic and harmless, and does not pollute the environment; [0003] However, due to the high surface tension of water, the adhesion of the coating film of the water-based paint to the substrate is poor, which reduces the physical properties of the water-based paint; it is easy to produce shrinkage cavities, which not only affects the surface smoothness of the coating film, but also makes the coating film durable. Poor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D183/04C09D7/61C09D7/63C09D7/65C09D7/20
CPCC08K2003/2241C08K2201/011C08L2205/025C08L2205/035C09D7/20C09D7/61C09D7/63C09D7/65C09D133/04C08L83/04C08K13/02C08K3/22C08K3/34C08K5/20C08L1/284C08L33/04
Inventor 陈长福
Owner 成都道立福科技有限公司
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