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Corrosion-resistant metal powder coating material and preparation method thereof

A metal powder and corrosion-resistant technology, applied in anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of short service life, poor durability, and easy corrosion of metal powder coatings, and achieve long service life and enhanced corrosion resistance effect, the effect of reducing damage

Inactive Publication Date: 2019-08-16
青岛美尔塑料粉末有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a corrosion-resistant metal powder coating and a preparation method thereof, which solves the problems of easy corrosion, poor durability and short service life of the metal powder coating in the prior art

Method used

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  • Corrosion-resistant metal powder coating material and preparation method thereof
  • Corrosion-resistant metal powder coating material and preparation method thereof
  • Corrosion-resistant metal powder coating material and preparation method thereof

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preparation example Construction

[0028] The preparation method of a kind of corrosion-resistant metal powder coating of the present invention comprises the following steps: 1) get resin and solidifying agent, leveling agent, filler, degassing agent, wear-resisting agent, titanium dioxide and / or pigment, mix, At 95-125°C, extrude, tablet, and pulverize to obtain a base powder; 2) Add a bonding agent to the base powder obtained in step 1), stir, and the linear speed of the tip of the stirring paddle is 20- 40m / s, heat up to 55-65°C; 3) Take aluminum powder and pearl powder, preheat to 55-65°C, adjust the linear speed of the paddle tip of the stirring paddle in step 2) to 5-15m / s, At the same time, add preheated aluminum powder and pearl powder, bond for 1-5min, and cool down; 4) in the cooled material obtained in step 3), add a fluidity improver to control the blade tip linear velocity of the stirring paddle No more than 5m / s, mixing, sieving, packaging, and metal powder coatings.

[0029] Specifically, in the...

Embodiment 1

[0031] A kind of preparation method of corrosion-resistant metal powder coating of the present invention, comprises the following steps:

[0032] 1) Take the raw materials used for the base powder according to the following parts by weight: polyester resin 35Kg, E-12 epoxy resin 35Kg, filler barium sulfate 16Kg, filler calcium carbonate 10Kg, leveling agent 1Kg, degassing agent benzoin 0.5Kg, poly Ethylene wax powder 0.5Kg, titanium dioxide 2Kg;

[0033] 2) Add the above-mentioned raw materials into the mixer, mix for 5 minutes, put the mixed mixture into the extruder and knead and extrude it at 125°C, then press it into tablets, and grind it with an air cyclone separation mill to obtain the average particle size 30μm powder, i.e. base powder, for later use;

[0034] 3) Weigh the raw materials used in the metal powder coating according to the following parts by weight: 100Kg of the above-mentioned base powder, 2.5Kg of double-coated aluminum powder, 1Kg of pearl powder, 0.5Kg...

Embodiment 2

[0043] A kind of preparation method of corrosion-resistant metal powder coating of the present invention, comprises the following steps:

[0044] 1) Weigh the raw materials used for the base powder according to the following parts by weight: resin 73Kg, curing agent TGIC 5.5Kg, filler barium sulfate 20Kg, leveling agent 1Kg, degassing agent modified polyamide wax 0.5Kg;

[0045] 2) Add the above-mentioned raw materials into the mixer, mix for 10 minutes, put the mixed mixture into the extruder and knead and extrude it at 100°C, then press it into tablets, crush it, and grind the crushed tablets, Get the base powder and set aside;

[0046] 3) Weigh the raw materials used in the metal powder coating according to the following parts by weight: 100Kg of the above-mentioned base powder, 5kg of double-coated aluminum powder, 0.5Kg of pearl powder, 0.3Kg of polyethylene wax powder, 0.5Kg of polyamide wax powder, fumed silica 0.3Kg; Among them, double-coated aluminum powder is double...

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Abstract

The invention discloses a corrosion-resistant metal powder coating material and a preparation method thereof, wherein the corrosion-resistant metal powder coating material comprises: 100 parts of bottom powder, 0.5-10 parts of aluminum powder, 0.5-2 parts of pearl powder, 0.3-1.5 parts of a bonding aid, and 0.05-0.5 part of a fluidity improver, the bottom powder comprises, by weight, 60-95% of a resin and a curing agent, 0.5-1.5% of a leveling agent, 0-35% of a filler, 0.3-1.0% of a degassing agent, 0-1.0% of a wear-resistant agent, and 0-5.0% of titanium dioxide and / or a pigment, and the aluminum powder is non-floating sheet-like aluminum powder, has an average particle size of 10-60 [mu]m, and is subjected to double coating by selecting silicon dioxide and an acrylic resin. The inventionfurther provides a preparation method of the metal powder coating material, wherein the product is prepared by feeding in steps and controlling the stirring speed, the temperature and the time. According to the present invention, the metal powder coating material has advantages of strong metallic flashing effect, good corrosion resistance and good durability.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, in particular to a corrosion-resistant metal powder coating and a preparation method thereof. Background technique [0002] Powder coating is a solvent-free 100% solid powder coating. At room temperature, it is electrostatically sprayed or fluidized bed dip-coated, then heated and baked to melt and solidify to form a smooth and bright permanent coating film. Metal powder coating is a kind of powder coating, which refers to various powder coatings containing pigments with metallic glitter effect. Strong flashing effect, fashionable and beautiful, very suitable for spraying indoor and outdoor products such as home furnishing, accessories and cars. [0003] Metal effect pigments in metal powder coatings include aluminum powder, pearl powder, copper gold powder, stainless steel powder, etc., and aluminum powder is the most commonly used. Aluminum flakes have the advantages of low density an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/46C09D5/36C09D5/08C09D7/61C09D7/65
CPCC08K2003/0812C08L2205/035C09D5/032C09D5/033C09D5/08C09D5/36C09D167/00C08L63/00C08K13/06C08K9/10C08K3/08
Inventor 常平赵卫海巨志飞王婷婷
Owner 青岛美尔塑料粉末有限公司
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