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Coil coating and preparation method thereof

A technology of coil coatings and pigments, applied in the direction of anti-corrosion coatings, fireproof coatings, polyester coatings, etc., can solve the problems of poor acid and alkali resistance, poor scratch resistance, low flexibility, etc., to achieve enhanced adhesion, low cost, easily degradable effect

Active Publication Date: 2018-08-24
DONGGUAN DAXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a coil coating and a preparation method thereof aiming at the problems of the prior art, which solves the problems of poor adhesion, low flexibility, poor scratch resistance, and poor acid and alkali resistance of the coil coating in the prior art

Method used

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  • Coil coating and preparation method thereof
  • Coil coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A coil coating of this embodiment includes the following components:

[0034]

[0035] The amino resin is composed of a fully methyl etherified amino resin and a butyl etherified amino resin in a mass ratio of 3:1.

[0036] The dispersant is composed of polydimethylsiloxane and ethylene-vinyl acetate copolymer in a mass ratio of 1:1.5, and the leveling agent is polyether modified polydimethylsiloxane.

[0037] The defoamer is composed of polyether modified silicone and polysiloxane in a mass ratio of 3:2; the solvent is composed of xylene, heavy aromatic hydrocarbons containing C9-C10, and cyclohexanone in a mass ratio of 2:5: 3 composition.

[0038] The antioxidant is composed of the following components: 10 parts of soybean oil, 5 parts of tert-butanol, and 5 parts of liquid paraffin.

[0039] The filler is composed of self-cleaning material and flame retardant in a mass ratio of 1:4; the self-cleaning material is composed of silver vanadate, nano titanium dioxide, and nano zi...

Embodiment 2

[0042] The water-based epoxy resin refractory coating of this embodiment includes the following components:

[0043]

[0044]

[0045] The amino resin is composed of a fully methyl etherified amino resin and a butyl etherified amino resin in a mass ratio of 3:1.

[0046] The dispersant is composed of polydimethylsiloxane and ethylene-vinyl acetate copolymer in a mass ratio of 1:1.5, and the leveling agent is polyether modified polydimethylsiloxane.

[0047] The defoamer is composed of polyether modified silicone and polysiloxane in a mass ratio of 3:2; the solvent is composed of xylene, heavy aromatic hydrocarbons containing C9-C10, and cyclohexanone in a mass ratio of 2:5: 3 composition.

[0048] The antioxidant is composed of the following components: 10 parts of soybean oil, 5 parts of tert-butanol, and 5 parts of liquid paraffin.

[0049] The filler is composed of self-cleaning material and flame retardant in a mass ratio of 1:4; the self-cleaning material is composed of silver van...

Embodiment 3

[0052] The water-based epoxy resin refractory coating of this embodiment includes the following components:

[0053]

[0054] The amino resin is composed of a fully methyl etherified amino resin and a butyl etherified amino resin in a mass ratio of 3:1.

[0055] The dispersant is composed of polydimethylsiloxane and ethylene-vinyl acetate copolymer in a mass ratio of 1:1.5, and the leveling agent is polyether modified polydimethylsiloxane.

[0056] The defoamer is composed of polyether modified silicone and polysiloxane in a mass ratio of 3:2; the solvent is composed of xylene, heavy aromatic hydrocarbons containing C9-C10, and cyclohexanone in a mass ratio of 2:5: 3 composition.

[0057] The antioxidant is composed of the following components: 10 parts of soybean oil, 5 parts of tert-butanol, and 5 parts of liquid paraffin.

[0058] The filler is composed of self-cleaning material and flame retardant in a mass ratio of 1:4; the self-cleaning material is composed of silver vanadate, na...

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Abstract

The invention belongs to the technical field of coatings, in particular to a coil coating and a preparation method thereof. The coil coating comprises 45-55 parts of epoxy modified polyester resin, 12-18 parts of amino resin, 8-11 parts of a leveling agent, 10-20 parts of pigment, 10-18 parts of filler, 5-10 parts of a dispersant, 5-8 parts of an antifoaming agent, 15-25 parts of a solvent and 5-8parts of an antioxidant. The problems of poor adhesion, low flexibility, poor scratch resistance and poor acid and alkali resistance of coil coatings in the prior art are solved.

Description

Technical field [0001] The invention relates to the technical field of coatings, in particular to a coil coating and a preparation method thereof. Background technique [0002] Coil coatings have been produced and developed in China for decades. Pre-coated metal coils have been widely used due to their changeable color, lightness, easy processing and excellent mechanical properties, and the demand for coil coatings is increasing. There are many layers of pre-coated metal coils, generally from the inside to the outside: galvanized layer, passivation layer, primer, top coat, and from the inside to the back: galvanized layer, passivation layer, back paint. Different coatings have different performance requirements. The primer needs good adhesion, corrosion resistance and flexibility, and the topcoat needs to have good scratch resistance, acid and alkali resistance. A good coating requires the perfect coordination of primer and topcoat. It must have good workability and scratch res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/02C09D163/00C09D161/32C09D5/18C09D5/16C09D5/08C09D7/61C09D7/63C09D7/65
CPCC08K2003/2224C08K2003/2227C08K2003/2241C08K2003/2296C08K2201/011C08L2201/02C08L2201/08C08L2205/02C08L2205/025C08L2205/035C08L2312/00C09D5/08C09D5/1662C09D5/1687C09D5/18C09D167/02C08L63/00C08L61/32C08L83/04C08L23/0853C08L91/00C08L91/06C08L61/34C08K13/02C08K3/22C08K3/24C08K7/28
Inventor 何晓明蔡双儿叶斌
Owner DONGGUAN DAXING CHEM
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