Elastic fluorocarbon silver paint and preparation method thereof and use method

A silver powder paint, elastic technology, used in metal-free paints, polyurea/polyurethane coatings, devices for coating liquids, etc., to achieve excellent decorative properties, excellent stain and scrub resistance, excellent weather resistance sexual effect

Active Publication Date: 2012-05-02
SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]In recent years, the normal temperature cross-linked fluorocarbon paint technology and its construction technology have developed rapidly, and the market application, especially the fluorocarbon silver powder paint imitation aluminum plate coating, has become more and more widespread. The cracking phenomenon of the imitation aluminum plate coating caused by various reasons has been plagued by fluorocarbon paint research and development, production and construction enterprises. In order to solve this problem, the main method currently adopted is to use two-component flexible putty and various fiber mesh cloth to prevent The putty layer cracks, but because the putty layer is generally thicker, the reasons for the cracking phenomenon are more complicated, and it is difficult to completely avoid

Method used

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  • Elastic fluorocarbon silver paint and preparation method thereof and use method
  • Elastic fluorocarbon silver paint and preparation method thereof and use method
  • Elastic fluorocarbon silver paint and preparation method thereof and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Prepare fluorocarbon silver powder paint main paint of the present invention:

[0054] According to the weight shown in Example 1 in Table 1, each component is taken, and the preparation method is as follows:

[0055] Step 1: Pre-dispersion of aluminum-silver paste: Mix the aluminum-silver paste in the formula with an equal amount of xylene, stir at a low speed until there are no aggregated aluminum powder particles, and set aside;

[0056] Step 2: Take the fluororesin and 20% CAB551-0.2 in the components according to the weight ratio in the formula, stir and mix evenly at low to medium speed, then add dispersant, stir at medium speed for 5 minutes, and then add anti-settling agent by weight After adding, disperse at high speed for 5-10 minutes to a fineness of ≤25 μm, then add wax powder under low-speed stirring, disperse at high speed for 15 minutes after adding, then add leveling agent and mixed solvent and stir at low to medium speed to mix evenly;

[0057] Step 3:...

Embodiment 2

[0066] According to the parts by weight of each component in Example 2, repeat the method described in Example 1, wherein the matting powder and wax powder are added together to prepare the elastic fluorocarbon paint main paint, curing agent and thinner. According to the main paint: curing agent: diluent = 125.9: 25.8: 75 (among them, the main paint and curing agent are mixed according to the ratio of OH / NCO = 1: 1.1) and then sprayed, and the fluorocarbon silver powder can be obtained after spraying and drying naturally Paint film, dry at room temperature for 24 hours, completely dry for 7 days. The performance testing results (the thickness of the dry coating film when testing the elongation rate is (1±0.2) mm, and the rest are in accordance with relevant standards) are shown in the corresponding data of Example 2 in Table 2.

Embodiment 3

[0068] According to the weight of each component in Example 3, the method described in Example 1 was repeated, wherein the matting powder and wax powder were added together to prepare the elastic fluorocarbon paint main paint, curing agent and thinner. According to the main paint: curing agent: thinner = 140.6: 35.8: 95 (among them, the main paint and curing agent are mixed according to the ratio of OH / NCO = 1: 1.15) and then sprayed, and the fluorocarbon silver powder can be obtained after spraying and drying naturally Paint film, dry at room temperature for 24 hours, completely dry for 7 days. The performance testing results (thickness of the dry coating film when testing the elongation rate is (1±0.2) mm, and the rest are in accordance with relevant standards) are shown in the corresponding data of Example 3 in Table 2.

[0069] Table II

[0070]

[0071]

[0072] Note: The test of weather resistance, acid resistance and mortar resistance should be finished with the...

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Abstract

The invention relates to elastic fluorocarbon silver powder lacquer. Main lacquer is prepared from the following components in weight percentage: 70 to 85 percent of fluoroesin, 3 to 5 percent of 20 percent of CAB551-0.2, 0.3 to 0.5 percent of a dispersant, 0.4 to 0.6 percent of an antisettle agent, 0.3 to 0.5 percent of a levelling agent, 0 to 3 percent of flatting powder, 0.4 to 0.8 percent of wax powder, 7 to 10 percent of a nonfloating type aluminum silver slurry, 7 to 10 percent of xylene and 18 to 25 percent of a mixed solvent; the fluoroesin is a copolymer of tetrafluoroethylene or vinyl monomers or a copolymer of chlorotrifluoroethylene or vinyl monomers; a curing agent of the lacquer is formed by mixing the following components in weight percentage: 90 percent of an elastic HDI curing agent and 10 percent of anhydrous butyl acetate; and the weight ratio of the main lacquer to the curing agent is based on the content of the hydroxyl value of the fluoroesin and the NCO content of the curing agent of 1 to (1.05-1.15). The elastic fluorocarbon silver powder lacquer has outstanding weather resistance, excellent anti-staining performance, scrubbing resistance and decorating property and the like; the lacquer has good room-temperature and low-temperature elasticity, can resist fine cracks, prevent cracks on the surface of a coating layer caused by the fine cracks on a putty layer and can be also used as surface lacquer of a complete anti-cracking aluminum-like plate fluorocarbon painting system.

Description

technical field [0001] The invention relates to a two-component elastic fluorocarbon silver powder paint for building exterior walls and its preparation and use methods. Background technique [0002] In recent years, the normal temperature cross-linked fluorocarbon paint technology and its construction technology have developed rapidly, and the market application, especially the fluorocarbon silver powder paint imitation aluminum plate coating, has become more and more widespread. Carbon paint research and development, production and construction enterprises, in order to solve this problem, the main method currently adopted is to use two-component flexible putty and various fiber mesh cloth to prevent cracking of the putty layer, but because the putty layer is generally thick, it will cause cracking. The reasons for this are complex and difficult to completely avoid. Contents of the invention [0003] The technical problem to be solved by the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/12C09D175/04C09D5/38B05D7/24
Inventor 胡基如
Owner SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD
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