Matte epoxy/polyester powder coating and preparation method thereof

Abstract

The invention discloses matte epoxy / polyester powder coating and a preparation method of the matte epoxy / polyester powder coating. The matte epoxy / polyester powder coating comprises the following raw materials, by weight, 250 parts-300 parts of epoxy resin (E-12), 250 parts-300 parts of polyester resin (P5127), 5 parts-10 parts of a flatting agent (GLP-503), 5 parts-10 parts of brightener (BLC701), 5 parts-10 parts of an extinction agent (XG603-2A), 8 parts-12 parts of benzoin, 5 parts-10 parts of modified polyethylene wax micro powder, 200 parts-250 parts of extinction barium sulfate, 50 parts-80 parts of torispherical silica powder, 5 parts-8 parts of 2-phenyl- imidazoline, 4 parts-6 parts of 2-methyl-imidazole, and 8 parts-12 parts of carbon black. The matte epoxy / polyester powder coating has the advantages of being high in hardness, high in intensity, highly wear resistant, good in heat resistance, good in aging resistant, good in stability of gloss, short in curing time, environment-friendly, pollution-free, and the like. The matte epoxy / polyester powder coating is excellent in performance, and is high in performance indexes of acid-base resistance, salt mist resistance, and organic solvent resistance such as gasoline resistance.

Description

technical field

[0001] The invention relates to a powder coating, in particular to a matte epoxy / polyester powder coating and a preparation method thereof. Background technique

[0002] As an environmentally friendly coating, powder coating has the advantages of no solvent, low pollution, simple coating process and high coating efficiency, and has been developed rapidly. Among them, the matt powder coating is a commonly used powder coating, which can be sprayed on the shell of household appliances, equipment, furniture, etc., to increase the decorative performance and enhance their water resistance, light resistance, friction resistance and pollution resistance, etc. The grade is greatly improved to achieve the required gloss, bright colors, beautiful and durable. However, the matt coatings currently on the market have shortcomings such as poor baking resistance and insufficient gloss stability, which affect the quality of the matt coatings. Contents of the invention [...

Examples

Embodiment Construction

[0041] A kind of matt type epoxy / polyester powder coating, it is made up of the raw material of following weight part:

[0042] Epoxy resin (E-12) 300 parts

[0043] Polyester resin (P5127) 300 parts

[0044] Leveling agent (GLP503) 10 parts

[0045] Brightener (BLC701) 10 parts

[0046] Matting agent (XG603-2A) 10 parts

[0047] Benzoin 10 parts

[0048] Modified polyethylene wax powder 10 parts

[0049] 250 parts of barium sulfate

[0050] 50 parts of quasi-spherical silica powder

[0051] 5 parts of 2-phenylimidazoline

[0052] 5 parts of 2-methylimidazole

[0053] 10 parts of carbon black.

[0054] Wherein, the particle size of the quasi-spherical silica powder is 600 mesh.

[0055] The modified polyethylene wax micropowder is prepared by the following method: (1) Add polytetrafluoroethylene micropowder, fumed silica and tree ash into a high-speed mixer at a mass ratio of 4:1.5:0.8 and mix for 25 minutes, then add 1.5% sodium lauryl sulfate, 2% sodium stearate a...

technical field

[0001] The invention relates to a powder coating, in particular to a matte epoxy / polyester powder coating and a preparation method thereof. Background technique

[0002] As an environmentally friendly coating, powder coating has the advantages of no solvent, low pollution, simple coating process and high coating efficiency, and has been developed rapidly. Among them, the matt powder coating is a commonly used powder coating, which can be sprayed on the shell of household appliances, equipment, furniture, etc., to increase the decorative performance and enhance their water resistance, light resistance, friction resistance and pollution resistance, etc. The grade is greatly improved to achieve the required gloss, bright colors, beautiful and durable. However, the matt coatings currently on the market have shortcomings such as poor baking resistance and insufficient gloss stability, which affect the quality of the matt coatings. Contents of the invention [...

Examples

Embodiment Construction

[0041] A kind of matt type epoxy / polyester powder coating, it is made up of the raw material of following weight part:

[0042] Epoxy resin (E-12) 300 parts

[0043] Polyester resin (P5127) 300 parts

[0044] Leveling agent (GLP503) 10 parts

[0045] Brightener (BLC701) 10 parts

[0046] Matting agent (XG603-2A) 10 parts

[0047] Benzoin 10 parts

[0048] Modified polyethylene wax powder 10 parts

[0049] 250 parts of barium sulfate

[0050] 50 parts of quasi-spherical silica powder

[0051] 5 parts of 2-phenylimidazoline

[0052] 5 parts of 2-methylimidazole

[0053] 10 parts of carbon black.

[0054] Wherein, the particle size of the quasi-spherical silica powder is 600 mesh.

[0055] The modified polyethylene wax micropowder is prepared by the following method: (1) Add polytetrafluoroethylene micropowder, fumed silica and tree ash into a high-speed mixer at a mass ratio of 4:1.5:0.8 and mix for 25 minutes, then add 1.5% sodium lauryl sulfate, 2% sodium stearate a...