CN211165660U

CN211165660U - Self-sensing color-changing metal composite plate

Info

Publication number: CN211165660U
Application number: CN201921691743.2U
Authority: CN
Inventors: 黄毅斌; 何金龙; 张海锋; 张碧红; 黄兴炜
Original assignee: ZHUHAI SPEEDBIRD PVC FILM LAMINATED METAL SHEET CO Ltd
Current assignee: ZHUHAI SPEEDBIRD PVC FILM LAMINATED METAL SHEET CO Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-08-04
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a self-perception metal composite sheet that discolours belongs to the metal composite field, include: a metal substrate; the first passivation layer is formed on the front surface of the metal substrate; a primer layer coated on the first passivation layer; the temperature sensing color changing coating is coated on the primer layer; and the protective film is attached to the thermochromic coating. The first passivation layer forms a compact oxidation film on the front surface of the metal substrate, the corrosion resistance of the metal substrate is enhanced, the primer layer has a protection effect, the temperature-sensitive color-changing coating can change colors along with the change of environmental temperature, the requirement of consumers on personalized appearances is met, more possibilities are added for the color-coated sheet industry, and the protection film can further protect the temperature-sensitive color-changing coating from being scratched.

Description

Self-sensing color-changing metal composite plate

Technical Field

The utility model relates to a metal composite, in particular to metal composite sheet discolours.

Background

With the development of economy and society, people have more and more personalized demands on life, particularly personalized appearance demands with certain functionality. Aiming at the color coating steel plate, the existing product has single color and less appearance selectivity. Therefore, there is a need to develop a metal composite panel that meets the needs of consumers for a personalized appearance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a metal composite sheet discolours, it can change the colour along with ambient temperature changes, satisfies the demand of consumer to individualized outward appearance.

According to the utility model discloses from perception metal composite sheet that discolours, include: a metal substrate; the first passivation layer is formed on the front surface of the metal substrate; a primer layer coated on the first passivation layer; the temperature sensing color changing coating is coated on the primer layer; and the protective film is attached to the thermochromic coating.

The method has the following beneficial effects: the first passivation layer forms a compact oxidation film on the front surface of the metal substrate, the corrosion resistance of the metal substrate is enhanced, the primer layer has a protective effect, the temperature-sensitive color-changing coating can change colors along with the change of environmental temperature, the self-sensing color-changing effect is achieved, the requirement of a consumer on the personalized appearance is met, more possibilities are added for the color-coated sheet industry, and the temperature-sensitive color-changing coating can be further protected by the protective film from being scratched.

According to some embodiments of the invention, the back surface of the metal substrate is coated with a second passivation layer.

According to some embodiments of the invention, the second passivation layer is coated with a back paint layer.

According to some embodiments of the invention, the thickness of the backing paint layer is 5-8 μm.

According to some embodiments of the invention, the metal substrate is a cold-rolled sheet, a hot-galvanized sheet, an electro-galvanized sheet, an aluminum-plated zinc sheet, an aluminum sheet, a chrome-plated iron sheet, or a stainless steel sheet.

According to some embodiments of the invention, the protective film is a PE film.

According to some embodiments of the invention, the metal substrate has a thickness of 0.2-1.5 mm.

According to some embodiments of the invention, the thermochromic coating has a thickness of 10-15 μm.

According to some embodiments of the invention, the primer layer has a thickness of 4-10 μm.

According to some embodiments of the invention, the thickness of the protective film is 40-60 μm.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Reference numerals: the metal substrate comprises a metal substrate 1, a first passivation layer 2, a primer layer 3, a thermochromic coating 4, a protective film 5, a second passivation layer 6 and a back paint layer 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as the front, the back, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention, the first and second are only for distinguishing technical features, and are not intended to indicate or imply relative importance or imply the number of indicated technical features or imply the precedence of the indicated technical features.

First embodiment

Referring to fig. 1, the utility model provides a from perception metal composite sheet that discolours, including metal substrate 1, first passivation layer 2, priming paint layer 3, temperature sensing coating 4 and protection film 5 that discolours, first passivation layer 2 is formed at metal substrate 1's front, and priming paint layer 3 is scribbled on first passivation layer 2, and temperature sensing coating 4 that discolours is scribbled on priming paint layer 3, and protection film 5 pastes and covers on temperature sensing coating 4 that discolours.

The metal substrate 1 can be a cold-rolled plate, a hot-dip galvanized plate, an electro-galvanized plate, an aluminum plate, a chrome-plated iron plate or a stainless steel plate, the first passivation layer 2 forms a compact oxidation film on the front surface of the metal substrate 1, the corrosion resistance of the metal substrate 1 is enhanced, the primer layer 3 has a protection effect, the temperature-sensitive color-changing coating 4 can be formed by curing conventional temperature-sensitive color-changing paint, the color can be changed along with the change of the environmental temperature, the self-sensing color-changing effect is achieved, the requirements of consumers on personalized appearances are met, more possibilities are added to the color-coated plate industry, the industrial innovation and development are actively promoted, and the temperature-sensitive color-changing coating can be further protected by the.

The composite board can adopt the following production processes: selecting a hot-dip galvanized plate as a metal substrate 1, and carrying out degreasing cleaning treatment and drying on the surface of the metal substrate 1; then coating a chromium-free passivating agent on the front side roller, drying and forming a first passivation layer 2; coating priming paint on the first passivation layer 2 in a rolling way, and curing to form a priming paint layer 3; then rolling temperature-sensitive color-changing paint on the front surface, and curing to form a temperature-sensitive color-changing coating 4; finally, a protective film 5 is attached.

It is understood that the protective film 5 is a transparent or translucent film, which prevents blocking the color of the thermochromic coating 4, and may be a PE film. Specifically, the thickness of the metal substrate 1 is 0.2-1.5mm, the thickness of the primer layer 3 is 4-10 μm, the thickness of the thermochromic coating 4 is 10-15 μm, and the thickness of the protective film 5 is 40-60 μm.

Second embodiment

Referring to fig. 2, the difference from the first embodiment is: the back side of the metal substrate 1 is coated with a second passivation layer 6, and the second passivation layer 6 is coated with a back paint layer 7.

In addition to the above effects of the first embodiment, the second passivation layer 6 can form a dense oxide film on the back surface of the metal substrate 1, and specifically can be formed by drying the first passivation layer 2 by the same chromium-free passivation agent; the back paint layer 7 can be formed by roll coating a back paint on the back surface of the metal substrate 1 while roll coating a primer on the front surface of the metal substrate and then curing. The thickness of the back paint layer 7 is 5-8 μm, and the back paint layer and the second passivation layer 6 are matched to enhance the corrosion resistance of the back surface of the metal substrate 1.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A self-sensing color-changing metal composite panel, comprising:

a metal substrate;

the first passivation layer is formed on the front surface of the metal substrate;

a primer layer coated on the first passivation layer;

the temperature sensing color changing coating is coated on the primer layer;

and the protective film is attached to the thermochromic coating.

2. The self-sensing color-changing metal composite plate according to claim 1, wherein the back surface of the metal substrate is coated with a second passivation layer.

3. The self-sensing color-changing metal composite plate according to claim 2, wherein the second passivation layer is coated with a back paint layer.

4. The self-sensing color-changing metal composite plate according to claim 3, wherein the thickness of the back paint layer is 5-8 μm.

5. The self-sensing color-changing metal composite plate according to claim 1, wherein the metal substrate is a cold-rolled plate, a hot-galvanized plate, an electro-galvanized plate, an aluminum plate, a chrome-plated iron plate or a stainless steel plate.

6. The self-sensing color-changing metal composite plate according to claim 1, wherein the protective film is a PE film.

7. A self-sensing color-changing metal composite sheet according to any one of claims 1 to 6, wherein the thickness of the metal substrate is 0.2 to 1.5 mm.

8. The self-sensing color-changing metal composite plate according to claim 7, wherein the thickness of the temperature-sensing color-changing coating is 10-15 μm.

9. The self-sensing color-changing metal composite plate according to claim 7, wherein the primer layer has a thickness of 4 to 10 μm.

10. The self-sensing color-changing metal composite plate according to claim 7, wherein the thickness of the protective film is 40 to 60 μm.