Bright-color super-weatherability exterior wall latex paint and preparation method thereof

A super-weather-resistant and exterior wall technology, applied in latex paint, coating, etc., can solve the problems of super-weather-resistant acrylic latex paint not bright enough, paint film is not durable enough, etc., to achieve outstanding adhesion and waterproof, excellent water resistance, The effect of excellent durability

Inactive Publication Date: 2021-02-05
NIPPON PAINT YASHILI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bright color super weather-resistant exterior wall latex paint and its preparation method, which solves the problems that the color of the super weather-resistant acrylic latex paint is not bright enough and the paint film is not durable enough.

Method used

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  • Bright-color super-weatherability exterior wall latex paint and preparation method thereof
  • Bright-color super-weatherability exterior wall latex paint and preparation method thereof
  • Bright-color super-weatherability exterior wall latex paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 (comparative example)

[0045] The preparation steps of product of the present invention (below all are percentage by weight):

[0046] (1) Add 25% pure water in the reactor;

[0047] (2) Add 55% acrylic acid emulsion into the reaction kettle, and stir for 3 minutes at 600-800 rpms;

[0048](3) Stir and add 0.6% dispersant, 0.3% wetting agent and 0.2% defoamer at a rotating speed of 600-800rpms, and continue to stir and disperse for 5 minutes;

[0049] (4) Stir and add 10% organic color paste at a speed of 600-800 rpms, adjust the speed to 1000-1200 rpms, and stir for another 10 minutes;

[0050] (5) Reactor temperature ≤ 50°C, stirring and adding 0.2% fungicide, 0.15% antifungal agent and 0.1% defoamer at 600-800rpms, stirring for 5 minutes;

[0051] (6) Adjust the rotating speed to 1000-1200rpms, add 0.5% rheology modifier and stir for 5 minutes under stirring state;

[0052] (7) Add 7.95% pure water and stir well to get the finished product.

Embodiment 2

[0054] The preparation steps of product of the present invention (below all are percentage by weight):

[0055] (1) Add 25% pure water in the reactor;

[0056] (2) Add 50% acrylic acid emulsion into the reaction kettle, and stir for 3 minutes at 600-800 rpms;

[0057] (3) Stir and add 0.5% dispersant, 0.25% wetting agent and 0.2% defoamer at 600-800rpms, stir and disperse for 5 minutes;

[0058] (4) Stir and add 15% organic color paste at 600-800 rpms, and continue stirring for 10 minutes;

[0059] (5) Reactor temperature ≤ 50°C, add 0.1% bactericide, 0.15% antifungal agent and 0.1% defoamer at 600-800rpms and stir for 5 minutes;

[0060] (6) Adjust the rotating speed to 1000-1200rpms, add 0.05% light stabilizer and stir for 3 minutes under stirring state;

[0061] (7) Adjust the rotating speed to 600-800rpms, add 0.4% rheology modifier and stir for 5 minutes under stirring state;

[0062] (8) Add 8.25% pure water and stir well to get the finished product.

Embodiment 3

[0064] The preparation steps of product of the present invention (below all are percentage by weight):

[0065] (1) Add 25% pure water in the reactor;

[0066] (2) Add 55% acrylic acid emulsion into the reaction kettle, and stir for 3 minutes at 600-800 rpms;

[0067] (3) Stir and add 0.4% dispersant, 0.3% wetting agent and 0.13% defoamer at 600-800rpms, stir and disperse for 5 minutes;

[0068] (4) Stir and add 18% organic color paste at a rotating speed of 600-800 rpms, and continue stirring for 10 minutes;

[0069] (5) Reactor temperature ≤ 50°C, add 0.2% fungicide, 0.1% antifungal agent and 0.07% defoamer at 600-800rpms and stir for 5 minutes;

[0070] (6) Adjust the rotating speed to 1000-1200rpms, add 0.1% light stabilizer and stir for 3 minutes under stirring state;

[0071] (7) Adjust the rotating speed to 600-800rpms, add 0.3% rheology modifier under stirring state and stir for 5 minutes;

[0072] (8) Add 0.4% pure water and stir well to get the finished product. ...

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Abstract

The invention discloses bright-color super-weatherability exterior wall latex paint and a preparation method thereof. The bright-color super-weatherability exterior wall latex paint is prepared from,by weight, acrylic emulsion, organic color paste, a dispersing agent, a wetting agent, a defoaming agent, a sterilizing agent, a mildew preventive, a light stabilizer, a rheology modifier and pure water. The water-based self-crosslinking pure acrylic emulsion forms an anti-sticking paint film; the sebacate light stabilizer weakens the damage of ultraviolet irradiation to the stability of the paintfilm, and can inhibit the photooxidation of the paint film, thereby enhancing the damage loss of the gloss to the physical properties of the coating. The stability of the organic color paste is protected so that the organic color paste has good light resistance and weather resistance, the flexibility, the adhesive force, the waterproofness and the appearance brightness of the coating are kept, and finally, the durability and the service life of the coating are remarkably improved and prolonged.

Description

technical field [0001] The invention relates to the technical field of coatings, more specifically, to a bright-color super-weather-resistant exterior wall latex paint and a preparation method thereof. Background technique [0002] Exterior wall coatings are exposed to the air for a long time, and are exposed to the sun, rain, and wind. The technical level requirements for the adhesion, weather resistance, stain resistance and scrub resistance of the exterior wall coatings are getting higher and higher. It must meet GB9755- 2014 "Synthetic Resin Emulsion Exterior Wall Coatings" requires excellent stain resistance, but also meets the requirements of GB18582-2020 "Limits of Hazardous Substances in Wall Coatings for Buildings". [0003] Self-crosslinking waterborne acrylic paint is usually made by adding pigments, fillers and additives to self-crosslinking acrylic emulsion. Cross-linked waterborne acrylic coatings have been widely promoted and applied in the field of industria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/02C09D7/41C09D7/48C09D7/65
CPCC09D133/04C09D5/028C09D5/024C08L2201/08
Inventor 杨月恩
Owner NIPPON PAINT YASHILI
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