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A kind of super weather-resistant fluorocarbon coating and preparation method thereof

A fluorocarbon coating and super weather-resistant technology, which is applied in coatings and other directions, can solve problems such as endangering workers' health, damaging the environment, and providing support for weather resistance, and achieves the effect of improving coating adhesion, weather resistance, and excellent performance

Active Publication Date: 2017-02-22
RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN 100455634C discloses an environmentally friendly non-toxic fluorine-containing coil coating, which is used as a primer; Chinese patent application CN 1657578A discloses a super weather-resistant colored fluorocarbon coating for plastic window profiles. Or the concept of acrylic is too vague to back up the weather resistance it claims to be able to achieve
The paint is used for pre-coating of high-grade exterior wall decoration and protection materials such as aluminum curtain wall panels, aluminum profiles, and color steel plates. However, the solvents used are xylene and isophorone, which are highly toxic and smelly. The application will endanger the health of workers and damage the environment

Method used

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  • A kind of super weather-resistant fluorocarbon coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 90g parts of modified acrylic resin (the ratio of methyl methacrylate monomer, ethyl acrylate monomer, and hydroxyethyl acrylate monomer is 2:2:1) is dissolved in 210g butyl acetate to prepare a solid mass content of 300g of 30.00% resin solution; mix and grind the above 300g resin solution with 70g titanium dioxide, 20g cobalt blue, 10g carbon black, 100g talc, 5g defoamer, 5g dispersant, and 90g dimethyl phthalate until The fineness is ≤30μm, and the color paste is prepared by filtering with a 100 mesh filter to obtain 500g of color paste; 300g of polyvinylidene fluoride Add 33g of dimethyl phthalate to the above 500g color paste, stir and disperse uniformly at a stirring speed of 2000rpm; filter with a 300-mesh filter to obtain the super weather-resistant fluorocarbon coating of the present invention.

[0028] The above fluorocarbon topcoat was diluted to 50% solid content, coated on a steel plate pre-coated with acrylic primer with an 80 μm wire rod coater, and baked i...

Embodiment 2

[0031] 180g portions of modified acrylic resin (the ratio of methyl methacrylate and ethyl acrylate is 3:1) is dissolved in 180g ethyl acetate to prepare 360g resin solution with a solid mass content of 50.00%; the above 360g resin solution is combined with 50g titanium dioxide, 200g calcium carbonate, 5g dispersant, 15g leveling agent, 50g dimethyl succinate, 50g dimethyl glutarate, 50g dimethyl adipate are mixed and ground to a fineness of ≤30μm. 700g of color paste prepared by filtration with 200 mesh filter; 160g of polyvinylidene fluoride resin Add 36 g of dimethyl succinate to the above 700 g color paste, stir and disperse uniformly, at a stirring speed of 1000 rpm; filter with a 200-mesh filter to obtain the super weather-resistant fluorocarbon coating of the present invention.

[0032] Dilute the above fluorocarbon topcoat to 40% solid content, use an automatic knife coater to coat it on the aluminum plate pre-coated with amino resin primer, control the wet film thickness...

Embodiment 3

[0035] Dissolve 90g parts of modified acrylic resin (the ratio of methyl methacrylate to ethyl acrylate is 1:3) in 100g butyl acetate and 35g dimethyl phthalate to prepare a resin with a solid mass content of 40.00% 225g solution; mix the above 225g resin solution with 150g titanium dioxide, 50g molybdenum bismuth yellow, 100g barium sulfate, 50g diethyl succinate, 100g dimethyl glutarate, mix and grind to a fineness ≤30μm, filter with 400 mesh 600g color paste prepared by mesh filtration; 240g polyvinylidene fluoride resin Add 49g of dimethyl phthalate to the above-mentioned 600g color paste, stir and disperse uniformly at a stirring speed of 3000rpm; filter with a 100-mesh filter to obtain the super weather-resistant fluorocarbon coating of the present invention.

[0036] Dilute the above-mentioned fluorocarbon topcoat to 30% solid content, spray it on the aluminum plate pre-coated with fluorocarbon primer with a spray gun, and control the wet film thickness to 120μm, then put ...

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Abstract

The invention discloses a super-weatherability fluorocarbon coating, which is prepared from the following raw materials in percentage by mass: 10.00%-40.00% of polyvinylidene fluoride, 1.00%-20.00% of modified acrylic resin, 1.00%-30.00% of pigment, 10.00%-40.00% of a filler, 0.00-2.00% of an assistant and the balance of a solvent. The invention also discloses a preparation method of the coating. The materials in the formula and the production process of the coating are low-toxicity or nontoxic substances, and the properties of the coating are excellent.

Description

Technical field [0001] The invention relates to a fluorocarbon coating, in particular to a super weather-resistant fluorocarbon coating and a preparation method thereof. Background technique [0002] With the deepening of urban modernization, buildings are getting taller and taller, and easy-to-fall veneer tiles, glass and other decorations have gradually withdrawn from the market, replaced by paint or pre-painted curtain wall panel profiles. Pre-painted curtain walls are widely used in various large and high-end buildings because of their decorative and protective functions. However, the subsequent problem is that the replacement and cleaning and maintenance costs of the surface coating of the curtain wall are too high. Fluorocarbon coatings have attracted people's attention with their excellent weather resistance and antifouling properties. When applied to the exterior walls of buildings, they can play a decorative and protective role for up to 15-30 years and extend the mainte...

Claims

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Application Information

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IPC IPC(8): C09D127/16C09D133/12C09D7/12
CPCC08K2003/2241
Inventor 张凌飞汤诚陆翠方杨文婷
Owner RUYUAN YAO AUTONOMOUS COUNTY DONGYANGGUANG FORMED FOIL CO LTD
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