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Weather-resistant metal type powder coating for aluminum profiles and preparation method thereof

A powder coating, high weather resistance technology, used in powder coatings, polyester coatings, non-metallic paints, etc., can solve the problems of loss of metallic luster, waste of metallic pigments, pollution of the environment, etc., and achieve safe, reliable and high-efficiency equipment operation. Labor productivity, metal pigment saving effect

Active Publication Date: 2012-11-14
广东华江粉末科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Polyester / TGIC or acrylic are mostly used as transparent bottom materials, and the outdoor durability is relatively poor
[0004] (2) Metallic pigments are not coated, so they are easily oxidized or corroded by media in the atmosphere, and quickly lose their metallic luster
[0005] (3) The general mechanical mixing method used causes uneven mixing of metallic pigments, and the metallic pigments fly during production and construction sites, which not only pollutes the environment but also causes waste of metallic pigments
[0006] (4) Recycled powder at the construction site cannot be recycled, and it is troublesome to deal with
[0007] (5) Metallic pigments are easy to accumulate at the nozzle of the spray gun, blocking the spray gun so that it cannot be sprayed normally

Method used

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  • Weather-resistant metal type powder coating for aluminum profiles and preparation method thereof
  • Weather-resistant metal type powder coating for aluminum profiles and preparation method thereof
  • Weather-resistant metal type powder coating for aluminum profiles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of high weather resistance polyester transparent powder coating transparent powder coating:

[0042]

[0043]

[0044] Among them, the saturated carboxyl-terminated polyester resin was purchased from Dixing Resin (Kunshan) Co., Ltd.

[0045] According to the above formula, put the raw materials together into the mixing tank for pre-mixing, melt and extrude the pre-mixed raw materials and press them into flakes; cool the flakes to 25°C, crush them, and then finely pulverize them into powder coatings; The paint is screened with a 200-mesh sieve to obtain a transparent powder paint of high weather resistance polyester transparent powder paint.

[0046] (2) Preparation of high-weather-resistant metal-type powder coatings for aluminum profiles:

[0047] High weather resistance polyester transparent powder coating 91.2%

[0048] Metallic Pigments 8%

[0049] Auxiliary 0.8%

[0050] According to the above formula, put the raw materials together into t...

Embodiment 2

[0057] (1) Preparation of high weather resistance polyester transparent powder coating transparent powder coating:

[0058]

[0059] Among them, the saturated carboxyl-terminated polyester resin was purchased from Dixing Resin (Kunshan) Co., Ltd.

[0060]According to the above formula, put the raw materials together into the mixing tank for pre-mixing, melt and extrude the pre-mixed raw materials and press them into flakes; cool the flakes to 25°C, crush them, and then finely pulverize them into powder coatings; The paint is screened with a 200-mesh sieve to obtain a transparent powder paint of high weather resistance polyester transparent powder paint.

[0061] (2) Preparation of high-weather-resistant metal-type powder coatings for aluminum profiles:

[0062] High Weather Resistant Polyester Clear Powder Coating 95%

[0063] Metallic pigments 4.2%

[0064] Auxiliary 0.8%

[0065] According to the above formula, put the raw materials together into the mixing tank of th...

Embodiment 3

[0072] (1) Preparation of high weather resistance polyester transparent powder coating transparent powder coating:

[0073]

[0074] Among them, the saturated carboxyl-terminated polyester resin was purchased from Dixing Resin (Kunshan) Co., Ltd.

[0075] According to the above formula, put the raw materials together into the mixing tank for pre-mixing, melt and extrude the pre-mixed raw materials and press them into flakes; cool the flakes to 25°C, crush them, and then finely pulverize them into powder coatings; The paint is screened with a 200-mesh sieve to obtain a transparent powder paint of high weather resistance polyester transparent powder paint.

[0076] (2) Preparation of high-weather-resistant metal-type powder coatings for aluminum profiles:

[0077] High weather resistance polyester transparent powder coating 93.6%

[0078] Metallic pigments 6%

[0079] Auxiliary 0.4%

[0080] According to the above formula, put the raw materials into the mixing tank togeth...

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Abstract

The invention belongs to the technical field of new materials and discloses a weather-resistant metal type powder coating for aluminum profiles and a preparation method thereof. The coating is prepared from the following raw materials in percentage by weight: 91.2-95% of weather-resistant polyester transparent powder coating, 4.2-8% of metal pigment and 0.4-0.8% of auxiliary. The preparation method comprises the following steps of: putting the weather-resistant polyester transparent powder coating, the metal pigment and the auxiliary into a bonding equipment mixing cylinder for bonding; warming and starting to stir; cooling after thermal insulation; and discharging and packaging to obtain the product.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a powder coating and a preparation method thereof, in particular to a high-weather-resistant metal type powder coating for aluminum profiles and a preparation method thereof. Background technique [0002] Metal-type powder coatings can be divided into imitation chrome plating (or gold-plating) and metal flash type according to the appearance of the coating film. With the development of the economy and the improvement of people's living standards, higher requirements are put forward for energy conservation and environmental protection. Due to the poor weather resistance of the polyester resin used in the existing metal-type powder coatings, the metal pigments are not coated with coatings, and only simple mechanical mixing methods are used in the preparation process. Loss of metallic luster. Moreover, due to the flying of metallic pigments in production and construction, envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/38
Inventor 魏育福马传安蔡英进蔡劲树李会宁
Owner 广东华江粉末科技有限公司
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