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High-elasticity environment-friendly latex paint and preparation method thereof

An environmentally friendly latex and high-elasticity technology, applied in the field of latex paint, can solve the problems of poor weather resistance and low elasticity, and achieve the effects of strong weather resistance, good film-forming process, and protection of light sensitivity.

Pending Publication Date: 2020-07-10
黄俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing latex paints still have the problems of low elasticity and poor weather resistance, and it is urgent to develop a new type of high-elasticity environment-friendly latex paint

Method used

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  • High-elasticity environment-friendly latex paint and preparation method thereof
  • High-elasticity environment-friendly latex paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation of modified acrylic acid emulsion, concrete preparation steps are as follows: (1) by comonomer methyl methacrylate 400g, styrene 230g, acrylic acid 350g, E-44 epoxy resin 30g and vinyltriethoxysilane 130g successively Add it into the reactor; (2) Add 456g of 40% mixed monomers into the reactor, start stirring, slowly add 32g of diethylene glycol butyl ether dropwise, after the dropwise addition, stir for 20-30min, then drop half of the amount Sodium persulfate (10%, 50mL) solution, after the dropwise addition, raise the temperature to 80-85°C, and keep it warm for 2-3h; (3) Then add 684g of the remaining mixed monomer dropwise, and the temperature rises after the dropwise addition When the temperature reaches 85-90°C, add the remaining sodium persulfate solution (10%, 50mL) dropwise. After the dropwise addition, keep warm for 2-3 hours and then drop to 40-45°C. Finally, add a small amount of ammonia water dropwise to adjust the pH value to medium propert...

Embodiment 1

[0031] This embodiment provides a novel high-elasticity environment-friendly latex paint. The latex paint comprises the following components by weight: 40 parts of water, 30 parts of modified acrylic emulsion, 18 parts of modified titanium dioxide, 6 parts of composite filler, water-washed kaolin 6 parts, 21 parts of heavy calcium carbonate, 1.8 parts of sodium lauryl sulfate, 0.3 parts of dimethylsiloxane defoamer, and 2.1 parts of composite film-forming aid.

[0032] The preparation method of described environment-friendly latex paint, concrete steps are as follows:

[0033] (1) Add 400 g of water, 300 g of modified acrylic emulsion, and 3 g of defoamer in corresponding parts by mass into the reaction kettle in sequence, and fully stir and mix to obtain the basic slurry;

[0034] (2) Add 180g of modified titanium dioxide, 60g of composite filler, 60g of washed kaolin, 210g of heavy calcium carbonate, 18g of sodium lauryl sulfate, 3g of dimethylsiloxane, and composite film-fo...

Embodiment 2

[0036]This embodiment provides a novel high-elasticity environment-friendly latex paint. The latex paint comprises the following components by weight: 35 parts of water, 35 parts of modified acrylic emulsion, 24 parts of modified titanium dioxide, 7 parts of composite filler, water-washed kaolin 5 parts, 18 parts of heavy calcium carbonate, 2 parts of sodium tripolyphosphate, 0.5 parts of dimethylsiloxane defoamer, and 2 parts of composite film-forming aid.

[0037] The preparation method is the same as in Example 1, only the corresponding proportions are replaced in equal amounts.

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Abstract

The invention relates to novel high-elasticity environment-friendly latex paint. The latex paint is prepared from the following components in parts by weight: 25 to 40 parts of water, 25 to 40 parts of modified acrylic emulsion, 15 to 30 parts of pigment, 5 to 8 parts of a filler, 3 to 7 parts of washed kaolin, 15 to 30 parts of ground calcium carbonate, 1 to 3 parts of a dispersing agent, 0.2 to0.6 part of a defoaming agent and 1 to 3 parts of a coalescing agent. The latex paint has the following beneficial effects: (1) the acrylic emulsion modified by organosilicon and epoxy resin can effectively improve the elasticity of the latex paint, and increase the mechanical properties and high / low temperature resistance; (2) the aluminum oxide coated titanium dioxide is adopted, so that the photosensitivity of the titanium dioxide can be effectively protected, and the weather resistance of the emulsion paint is improved; and (3) the emulsion paint prepared by the invention is simple in construction process, good in film forming process, strong in weather resistance and good in elasticity, and can be widely applied to indoor or outdoor decoration.

Description

technical field [0001] The invention belongs to the technical field of latex paint, and in particular relates to a high-elasticity environment-friendly latex paint and a preparation method thereof. Background technique [0002] At present, there are many types of coatings used in daily decoration. Latex paint is one of the most widely used wall decoration materials at present. With the continuous improvement of living standards, people's requirements for decorative materials are also increasing. There are many kinds of coatings, some are not conducive to construction, some performance cannot meet the needs, and some are relatively harmful to the human body. Water-based latex paint is an environmentally friendly coating with water as the dispersion medium. It has the advantages of environmental protection and health. Under the premise that consumers are increasingly pursuing a low-carbon, environmentally friendly, and healthy living environment, water-based latex paint is wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D5/02C09D7/62C09D7/61
CPCC08K2003/2241C08K2003/265C08K2201/003C09D5/024C09D5/028C09D143/04C08K13/06C08K9/10C08K3/22C08K7/26C08K3/34C08K9/02C08K3/346C08K3/26
Inventor 不公告发明人
Owner 黄俊
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