CN211467761U - High-adhesion corrosion-resistant PET composite board - Google Patents
High-adhesion corrosion-resistant PET composite board Download PDFInfo
- Publication number
- CN211467761U CN211467761U CN201921982384.6U CN201921982384U CN211467761U CN 211467761 U CN211467761 U CN 211467761U CN 201921982384 U CN201921982384 U CN 201921982384U CN 211467761 U CN211467761 U CN 211467761U
- Authority
- CN
- China
- Prior art keywords
- layer
- chromium
- metal substrate
- pet
- pet composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The utility model discloses a corrosion-resistant PET composite sheet of high adhesive force, include: a metal substrate; the first phosphorization layer is formed on the front surface of the metal substrate; a first chromium-free passivation layer formed on the first phosphide layer; a primer layer applied over the first chromium-free passivation layer; and the PET film is attached to the primer layer. This PET composite sheet's first bonderizing layer can provide the protection for metal substrate, prevents to be corroded, combines first chromium-free passivation layer, forms compact oxide film on metal substrate surface, can improve the adhesive force and the corrosion protection ability of other lacquer retes, and the priming paint layer plays further guard action moreover, and the PET membrane can reach high adhesive force performance, satisfies salt spray resistance performance requirement, and this PET composite sheet does not contain the heavy metal that the RoHS standards such as hexavalent chromium forbidden, and the environmental protection is pollution-free.
Description
Technical Field
The utility model relates to a color-coated sheet technical field, in particular to corrosion-resistant composite sheet.
Background
Because the air in coastal and offshore areas is rich in dispersed salt fog in the form of tiny water drops, the specific gravity of the air containing salt fog is higher than that of the air except for relatively high temperature, the air is easy to settle on various objects, and chloride in the salt fog has strong corrosivity and strong corrosive effect on steel products. In daily life, more than 70 percent of steel products are exposed in the environment which is easy to corrode, such as refrigerators, washing machines, water heaters, television backboards and the like, and are corroded by acid, alkali, salt and microorganisms for a long time, so that the mechanical property of the products is reduced, the use value is reduced, and even early scrapping is caused. Therefore, the high adhesion and corrosion resistance protection of the steel product have very important significance, the chromate used in the existing high-corrosion-resistance primer meets the high-corrosion-resistance requirement, but cannot meet the high-adhesion requirement, and the hexavalent chromium containing a large amount cannot meet the RoHS requirement, cannot be used for household electrical products and can only be used for building materials.
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 corrosion-resistant PET composite sheet, its environmental protection is pollution-free, satisfies salt spray resistance performance requirement, has higher adhesive force moreover.
According to the utility model discloses corrosion-resistant PET composite sheet of high adhesive force, include: a metal substrate; the first phosphorization layer is formed on the front surface of the metal substrate; a first chromium-free passivation layer formed on the first phosphide layer; a primer layer applied over the first chromium-free passivation layer; and the PET film is attached to the primer layer.
The method has the following beneficial effects: this PET composite sheet's first bonderizing layer can provide the protection for metal substrate, prevents to be corroded, combines first chromium-free passivation layer, forms compact oxide film on metal substrate surface, can improve the adhesive force and the corrosion protection ability of other lacquer retes, and the priming paint layer plays further guard action moreover, and the PET membrane can reach high adhesive force performance, satisfies salt spray resistance performance requirement, and this PET composite sheet does not contain the heavy metal that the RoHS standards such as hexavalent chromium forbidden, and the environmental protection is pollution-free.
According to some embodiments of the present invention, the metal substrate further comprises a second phosphate layer formed on the back surface of the metal substrate.
According to some embodiments of the present invention, the passivation layer further comprises a second chromium-free passivation layer formed on the second phosphate layer.
According to some embodiments of the present invention, the second chromium-free passivation layer further comprises a back paint layer coated on the second chromium-free passivation layer.
According to some embodiments of the utility model, still include the protection film, paste cover in on the PET membrane.
According to some embodiments of the invention, the primer layer is an epoxy zinc rich primer layer.
According to some embodiments of the invention, the PET film is coated on the primer layer by glue.
According to some embodiments of the invention, the metal substrate is a galvanized sheet.
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 phosphating layer 2, a first chromium-free passivation layer 3, a primer layer 4, a PET (polyethylene terephthalate) film 5, a protective film 6, a second phosphating layer 7, a second chromium-free passivation layer 8, a back paint layer 9 and a glue layer 10.
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 indicated by referring to the orientation description, such as up, down, front, rear, left, right, front, back, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the first and second are only used for distinguishing technical features, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features or implicitly indicate the precedence of the indicated technical features.
First embodiment
Referring to fig. 1, the utility model discloses a corrosion-resistant PET composite sheet of high adhesive force, include: the metal substrate comprises a metal substrate 1, a first phosphating layer 2, a first chromium-free passivation layer 3, a primer layer 4 and a PET (polyethylene terephthalate) film 5, wherein the first phosphating layer 2 is formed on the front surface of the metal substrate 1, the first chromium-free passivation layer 3 is formed on the first phosphating layer 2, the primer layer 4 is coated on the first chromium-free passivation layer 3, and the PET film 5 is attached to the primer layer 4.
In the production process of the embodiment, a cold-rolled sheet, a galvanized sheet, an aluminum-zinc plated sheet, an aluminum sheet, a chromium-plated iron sheet or a stainless steel sheet can be selected as a metal substrate, the front surface of the metal substrate is degreased and then is phosphated to form a first phosphating layer 2, and the thickness of the first phosphating layer 2 is 0.5-3 μm; coating a chromium-free passivation solution on the surface of the first phosphorization layer 2 in a roller coating mode for passivation, then putting the first phosphorization layer into a curing furnace for drying, spraying and cooling, and blowing and drying by hot air to form a first chromium-free passivation layer 3 with the thickness of 1-2 mu m; coating a priming paint on the first chromium-free passivation layer 3, then putting the first chromium-free passivation layer into a curing furnace for drying, spraying and cooling, and blowing and drying by hot air to form a priming paint layer 4 with the thickness of 5-6 mu m; finally, the PET film 5 is pasted by glue or other cementing layers.
The PET composite sheet of this embodiment can provide the protection for metal substrate 1 through first bonderizing layer 2, prevent to be corroded, combine first chromium-free passivation layer 3, form compact oxide film on metal substrate 1 surface, can improve the adhesive force and the corrosion protection ability of other lacquer rete, priming paint layer 4 plays further guard action moreover, PET membrane 5 can reach high adhesion performance, 360 hours with 5% NaCl solvent continuous spray, the surface does not have the bubble and does not have the delaminating, satisfy the salt spray resistance performance requirement.
In addition, the PET composite board does not contain hexavalent chromium and other heavy metals prohibited by RoHS standards, and is environment-friendly and pollution-free.
Second embodiment
Referring to fig. 2, the present embodiment differs from the first embodiment in that: the paint also comprises a protective film 6, a second phosphate coating 7, a second chromium-free passivation layer 8, a back paint layer 9 and a glue layer 10.
The second phosphating layer 7 is formed on the back surface of the metal substrate 1, the second chromium-free passivation layer 8 is formed on the second phosphating layer 7, in the production process, the second phosphating layer 7 and the first phosphating layer 2 can be formed at the same time, the effect is the same, and the second chromium-free passivation layer 8 and the first chromium-free passivation layer 3 can be formed at the same time, and the effect is the same. The back paint layer 9 is coated on the second chromium-free passivation layer 8, so that the corrosion resistance of the back surface of the metal substrate 1 can be further enhanced.
In addition, the protective film 6 is attached to the PET film 5 to protect the PET film 5 and the whole PET composite board from being scratched and resist fingerprints.
Specifically, the primer layer 4 is an epoxy zinc-rich primer layer, and has a protection effect and a self-repairing effect. The PET film 5 is pasted on the primer layer 4 through glue, a layer of glue is coated on the primer layer 4, the PET film 5 is placed in a curing furnace for activation treatment, the PET film 5 is pasted, a glue layer 10 and the PET film 5 are formed through spray cooling treatment and hot air blowing and drying, and the adhesive force of the PET film 5 is further improved.
In addition, in this embodiment, the metal substrate 1 is a galvanized plate, the galvanized plate is an anode coating, when rusting occurs, zinc is an anode, iron is a cathode, the corroded is zinc, and the iron is protected, so that the corrosion resistance is high.
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 (8)
1. High adhesion corrosion-resistant PET composite sheet which characterized in that includes:
a metal substrate;
the first phosphorization layer is formed on the front surface of the metal substrate;
a first chromium-free passivation layer formed on the first phosphide layer;
a primer layer applied over the first chromium-free passivation layer;
and the PET film is attached to the primer layer.
2. The composite high adhesion corrosion resistant PET board of claim 1, further comprising a second phosphate layer formed on the back surface of the metal substrate.
3. The high adhesion corrosion resistant PET composite sheet of claim 2 further comprising a second chromium-free passivation layer formed on the second phosphate layer.
4. The high adhesion corrosion resistant PET composite sheet according to claim 3 further comprising a primer layer applied on the second chromium-free passivation layer.
5. The high-adhesion corrosion-resistant PET composite board according to claim 1, further comprising a protective film attached to the PET film.
6. The high adhesion corrosion resistant PET composite board of claim 1 wherein the primer layer is an epoxy zinc rich primer layer.
7. The high adhesion corrosion resistant PET composite board of claim 1 wherein the PET film is coated on the primer layer by glue.
8. The high adhesion corrosion resistant PET composite sheet according to any one of claims 1 to 7, wherein the metal substrate is a galvanized sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982384.6U CN211467761U (en) | 2019-11-15 | 2019-11-15 | High-adhesion corrosion-resistant PET composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921982384.6U CN211467761U (en) | 2019-11-15 | 2019-11-15 | High-adhesion corrosion-resistant PET composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211467761U true CN211467761U (en) | 2020-09-11 |
Family
ID=72365343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921982384.6U Active CN211467761U (en) | 2019-11-15 | 2019-11-15 | High-adhesion corrosion-resistant PET composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211467761U (en) |
-
2019
- 2019-11-15 CN CN201921982384.6U patent/CN211467761U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5055822B2 (en) | Painted steel sheet with excellent coating adhesion | |
| CN103254755A (en) | Hot-dip Al-Zn-coated steel sheet with excellent weather resistance, corrosion resistance and alkali resistance and preparation method and surface treating agent thereof | |
| JP4312583B2 (en) | Painted Zn-Al alloy plated steel sheet with excellent corrosion resistance | |
| JP4970773B2 (en) | Metal surface treatment agent, metal material surface treatment method and surface treatment metal material | |
| JP2005146377A (en) | Chemical conversion-treated metallic sheet | |
| JP5380033B2 (en) | Painted metal material with excellent corrosion resistance and paint adhesion | |
| JP2007119858A (en) | Chromium-free precoated steel plate | |
| CN101680095A (en) | Non-chromium containing black multi-layer coatings | |
| CN211467761U (en) | High-adhesion corrosion-resistant PET composite board | |
| JP2010208154A (en) | Method of manufacturing metallic fuel vessel, and metallic fuel vessel | |
| CN105499108A (en) | Process for coating surfaces of metal components with composite anticorrosion coatings | |
| US4497876A (en) | Corrosion resistant metal composite with zinc and chromium coating | |
| CN111560607A (en) | Surface treatment liquid for hot-dip galvanized aluminum magnesium steel plate and preparation method of hot-dip galvanized aluminum magnesium chromium-free passivated plate | |
| CN111020549A (en) | Chromium-free passivation solution for zinc-aluminum-magnesium coating plate | |
| CN106958024A (en) | A kind of environment-friendly type derusting phosphating agent and its preparation and application | |
| JP5398310B2 (en) | Painted steel sheet and exterior member | |
| JP2002105393A (en) | Anticorrosive powder coating composition for steel material, steel material coated with the coating and method for producing the coated steel material | |
| JP4312635B2 (en) | Painted aluminized steel sheet with excellent corrosion resistance | |
| JP2001329383A (en) | Coated metallic sheet having excellent corrosion resistance | |
| JP4598703B2 (en) | Chrome-free pre-coated steel sheet | |
| JP2000129460A (en) | Organic coated galvanized steel sheet | |
| CN214528801U (en) | Water-based flame-retardant color-coated steel plate | |
| CN211463768U (en) | High salt spray resistant PCM composite board | |
| JP2011168855A (en) | Polyvinyl chloride coated steel sheet having excellent end face corrosion resistance | |
| JP3962123B2 (en) | Organic surface treatment metal plate and organic metal surface treatment liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |