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Exterior wall coating material capable of finishing working through one-time painting

An exterior wall coating and brushing technology, applied in the field of coatings, can solve problems such as poor hiding power, high putty strength, and coatings that are afraid of moisture, to solve compatibility and processing problems, improve wear resistance, and good flame retardancy performance effect

Active Publication Date: 2016-07-13
JIANGXI LONGZHENG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the putty is high in strength, it is difficult to polish, and workers are unwilling to do it. If the strength is poor, the putty will lose powder after polishing, affect the adhesion of paint, and raise dust when polished, which not only endangers the health of workers, but also pollutes the environment.
Such technology and craft are troublesome, labor-intensive, time-consuming, and expensive to operate, and are prone to quality problems and hidden dangers in project decoration.
In addition, in the prior art, latex paint products have a soft film, low strength, poor hardness, no acid and alkali resistance, poor hiding power (requires more than 2 times of painting), no aging resistance, easy fading, and poor stability (requires a large amount of paint). Common quality problems of exterior wall decoration such as fear of moisture, mildew, aging, pulverization, hollowing, peeling, and peeling caused by chemical additives) are common.

Method used

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  • Exterior wall coating material capable of finishing working through one-time painting
  • Exterior wall coating material capable of finishing working through one-time painting
  • Exterior wall coating material capable of finishing working through one-time painting

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] F1: Sulfonated hyperbranched polypyrrone modified graphene oxide, prepared by the following method:

[0050] (1) Preparation of naphthalene anhydride-capped hyperbranched polypyrrole solution

[0051] Add 1 mole of 1,3,5-tris(4-naphthyloxy-1,8-dioic acid) trimellitic anhydride and 2000ml m-cresol in a completely dry three-necked flask, stir under nitrogen protection, when the trianhydride After completely dissolving, add 0.5 mole of 3,3'-diaminobenzidine, stir at room temperature for 30 minutes, heat to 85°C, react for 3.5h, then react at 185°C for 4.5h; after the reaction, drop to At room temperature, naphthalene anhydride-capped hyperbranched polypyrrole solution is obtained;

[0052] (2) prepare the hyperbranched polypyrrole modified by diaminopolyethylene glycol

[0053] To the naphthalene anhydride-capped hyperbranched polypyrrole solution obtained in step (1), add 2 moles of diaminopolyethylene glycol with an average degree of polymerization of 226, stir at room...

Embodiment 1

[0095] In parts by weight, add 10 parts of A1, 30 parts of B1, 25 parts of C1, 8 parts of F1, 8 parts of G1, 5 parts of H1 and 0.5 parts of I1 into the mixer and mix thoroughly for 10 minutes, add 10 parts of D1 and 8 parts of Continue to mix E1 for 5 minutes, discharge and use.

Embodiment 2

[0097] In parts by weight, add 10 parts of A1, 30 parts of B1, 25 parts of C1, 8 parts of F2, 8 parts of G2, 5 parts of H1 and 0.5 parts of I1 into the mixer and mix them thoroughly for 10 minutes. Add 10 parts of D1 and 8 parts of Continue to mix E1 for 5 minutes, discharge and use.

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Abstract

The invention discloses an exterior wall coating material capable of finishing working through one-time painting.The exterior wall coating material is prepared from natural resin, polyvinyl acetate emulsion, deionized water, quartz powder, zinc oxide, sulfonated hyperbranched polypyrrolone modified graphene oxide, polybenzimidazole modified meso-porous silicon, KH-560 and inorganic pigment.The exterior wall coating material capable of finishing working through one-time painting has the better adhesive capacity, aging resistance, covering power, washing resistance, scratching resistance, stain resistance, self-cleaning performance, fastness, acid resistance and alkali resistance, longer service life and the like compared with existing water-based exterior wall coating materials.

Description

technical field [0001] The invention belongs to the technical field of coatings, and more specifically, the invention relates to an exterior wall coating that can be finished in one pass. Background technique [0002] The quality of coatings for building exterior walls directly affects the aesthetic effect of the city image. Conventional water-based coatings for exterior walls are entirely based on chemical emulsions, and the surface of the coating has a bright reaction. Therefore, there are high requirements for the flatness of the base layer. It is necessary to smooth the wall surface with 1-2 times of special putty for exterior walls, and generally smooth it with sandpaper or grinding tools. The putty for exterior walls in China basically uses cement and polymer as the main materials. Cement has high hardness and high brittleness. Polymer It is easy to age and degrade, and more than 90% of the paint peeling and falling off in the country are related to the quality of putt...

Claims

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Application Information

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IPC IPC(8): C09D131/04C09D193/00C09D193/04C09D7/12C08G73/06C08G73/18
CPCC08G73/0672C08G73/18C09D7/61C09D7/62C09D7/63C09D7/65C09D131/04C08L93/04C08K13/06C08K9/08C08K3/04C08K3/36C08K7/24C08K2003/2241C08K2003/2296C08L93/00
Inventor 容七英
Owner JIANGXI LONGZHENG SCI & TECH DEV
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