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High-weather-resistance aluminum alloy wood grain profile and preparation method thereof

A technology for aluminum alloys and aluminum profiles, applied in powder coatings, coatings, polyester coatings, etc., can solve the problems of mechanical strength loss, easy fading aging, fading gloss, etc., to enhance weather resistance, delay fading and aging, wood feeling realistic effect

Pending Publication Date: 2022-07-01
GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the surface weather resistance of thermal transfer products is poor, and the wood grain texture of the product is formed by the sublimation transfer of dyes. It is easy to fade and age after being exposed to the sun during use
When wood grain transfer printing products are used outdoors, their weather resistance is affected by humidity, temperature and sunlight intensity. If the weather resistance is not good, it will cause fading and loss of gloss, cracking, chalking, loss of mechanical strength and physical degradation, resulting in Wood grain transfer products are not suitable for outdoor use
However, the three-dimensional wood grain products obtained by spraying have a single variety and complicated manufacturing process, which cannot meet various market demands.

Method used

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  • High-weather-resistance aluminum alloy wood grain profile and preparation method thereof

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preparation example Construction

[0069] Correspondingly, the present invention also provides a method for preparing the above-mentioned high-weather-resistant aluminum alloy wood grain profile, comprising the following steps:

[0070] S1: Clean the surface of the aluminum profile substrate, then perform passivation pretreatment and dry it;

[0071] S2: spray a high-weather-resistant primer on the surface of the aluminum profile obtained in S1, and perform high-temperature curing to form a primer layer;

[0072] S3: Use weather-resistant wood grain transfer film to thermally transfer wood grain to the aluminum profile obtained in S2;

[0073] S4: Spray high weather-resistant protective coating on the surface of the transferred aluminum profile, and flash dry to obtain a protective coating to obtain a finished product.

[0074] The preparation method of the high-weather-resistant aluminum alloy wood grain profile provided by the present invention has the advantages of simple process and reasonable process, and...

Embodiment 1

[0106] High weather-resistant aluminum alloy wood grain profiles:

[0107] The surface of the high-weather-resistant aluminum alloy wood grain profile is sequentially provided with a base powder layer, a weather-resistant thermal transfer wood grain layer and a protective coating. The primer layer comprises polyester powder coating, the protective coating comprises room temperature curing FEVE fluorocarbon coating; the room temperature curing FEVE fluorocarbon coating comprises fluorocarbon resin, organic solvent, defoamer, dispersant, curing agent agent and antifouling agent, the fluorocarbon resin is ethylene-tetrafluoroethylene copolymer; the curing agent is aliphatic polyisocyanate.

[0108] The preparation method of the above-mentioned high weather-resistant aluminum alloy wood grain profile:

[0109] S1: The surface of the aluminum profile substrate is cleaned, then passivated with a chromate passivator, and then dried at 60° C. for 30 minutes.

[0110] S2: Spray a hig...

Embodiment 2

[0114] High weather-resistant aluminum alloy wood grain profiles:

[0115] The surface of the high-weather-resistant aluminum alloy wood grain profile is sequentially provided with a base powder layer, a weather-resistant thermal transfer wood grain layer and a protective coating. The primer layer comprises polyester powder coating, the protective coating comprises room temperature curing FEVE fluorocarbon coating; the room temperature curing FEVE fluorocarbon coating comprises fluorocarbon resin, organic solvent, defoamer, dispersant, curing agent agent and antifouling agent, the fluorocarbon resin is ethylene-tetrafluoroethylene copolymer; the curing agent is aliphatic polyisocyanate.

[0116] The preparation method of the above-mentioned high weather-resistant aluminum alloy wood grain profile:

[0117] S1: The surface of the aluminum profile substrate is cleaned, then passivated with a chromate passivator, and then dried at 90° C. for 10 minutes.

[0118] S2: Spray a hig...

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Abstract

The invention discloses a high-weather-resistance aluminum alloy wood grain profile and a preparation method thereof. A bottom powder layer, a heat transfer printing wood grain layer and a protective coating are sequentially arranged on the surface of the high-weather-resistance aluminum alloy wood grain profile. The bottom powder layer is made of a polyester powder coating; the protective coating is prepared from a protective coating, and the protective coating comprises a normal-temperature curing type FEVE fluorocarbon coating; the normal-temperature curing type FEVE fluorocarbon coating comprises fluorocarbon resin, an organic solvent, a curing agent and an auxiliary agent, wherein the fluorocarbon resin is an ethylene-trifluorochlor oethylene copolymer and / or an ethylene-tetrafluoroethylene copolymer; the curing agent is one or a combination of aliphatic polyisocyanate, aromatic polyisocyanate, alicyclic polyisocyanate and aromatic aliphatic polyisocyanate. The high-weather-resistance aluminum alloy wood grain profile is suitable for outdoor use, has clear and natural texture patterns and vivid wood texture, and has a very strong decorative effect.

Description

technical field [0001] The invention relates to the field of aluminum alloy surface treatment, in particular to a high weather-resistant aluminum alloy wood grain profile and a preparation method thereof. Background technique [0002] Aluminum alloy wood grain profile products have become more and more popular in the field of construction and home improvement due to their advantages of good environmental protection, realistic wood grain appearance, and diverse designs, becoming one of the new growth points of the aluminum profile industry. At present, thermal transfer wood grain profiles are widely used indoors. The processing method of this product is spraying and then thermal transfer. The mechanism is to use the sublimation and transfer of dyes on the transfer wood grain film to form a wood grain pattern. The specific process is to spray a base color powder coating film on the surface of the aluminum profile, then wrap the aluminum profile with the transfer wood grain fil...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D5/03C09D127/12C09D123/08C09D7/63B05D5/06B05D5/00B05D7/14
CPCC09D167/00C09D5/002C09D5/03C09D127/12C09D123/0892C09D7/63B05D5/061B05D5/00B05D7/14B05D2202/25C08K5/34924
Inventor 罗士烓刘辉丽熊建卿蒋友超
Owner GUANGDONG JMA ALUMINUM PROFILE FACTORY GRP
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