CN213327422U

CN213327422U - Structure of temporary protection waterborne strippable coating

Info

Publication number: CN213327422U
Application number: CN202021967912.3U
Authority: CN
Inventors: 李春来; 赵岩
Original assignee: Hubao Tianjin New Material Technology Development Co ltd
Current assignee: Hubao Tianjin New Material Technology Development Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-01
Anticipated expiration: 2030-09-10

Abstract

The utility model provides a structure of interim protection waterborne strippable coating, including substrate layer, first peel off layer, priming paint layer, second peel off layer, flame retardant coating and finish paint layer, supreme consolidation in proper order is followed down on the substrate layer to first peel off layer, priming paint layer, second peel off layer, flame retardant coating and finish paint layer, and the gross thickness of this strippable coating is 250-. The utility model has the advantages that: the utility model discloses can provide the effect of fire protection, conveniently peel off simultaneously, the film is not cracked when peeling off, can not take place to remain.

Description

Structure of temporary protection waterborne strippable coating

Technical Field

The utility model relates to a strippable coating field, more specifically say and relate to a structure of interim protection waterborne strippable coating.

Background

The strippable coating is a special protective coating which is coated on the surface of a substrate to isolate external erosion, prevents the substrate from being scratched, aged, polluted, dusty, greasy dirt, fingerprints and the like during production, transportation or storage, can provide temporary protection for various substrate surfaces, such as plastics, metals, woods, ceramics, glass, rubber, precoated parts (such as precoated polyurethane finish paint) and the like, generally has a period of protection from days to months, can be conveniently stripped from the surface of the substrate after the protection is finished, and does not generate negative influence on the surface of the substrate.

The following problems currently exist: at present, the strippable coating is easy to break under the influence of external impact or temperature, meanwhile, the thickness of the paint film is too small to protect the base material, and the paint film is too thin and too thick to realize stripping conveniently.

Disclosure of Invention

The utility model overcomes not enough among the prior art provides a structure of interim protection waterborne strippable coating.

The purpose of the utility model is realized by the following technical scheme.

The structure of the temporary protective water-based peelable coating comprises a base material layer, a first peeling layer, a primer layer, a second peeling layer, a fireproof layer and a finish paint layer, wherein the first peeling layer, the primer layer, the second peeling layer, the fireproof layer and the finish paint layer are sequentially solidified on the base material layer from bottom to top, and the total thickness of the peelable coating is 250-530 mu m.

Preferably, the first release layer and the second release layer each have a thickness of 50 to 150 μm.

Preferably, the first release layer and the second release layer each have a thickness of 70 to 100 μm.

Preferably, the thickness of the primer layer is 80-90 μm.

Preferably, the primer layer is an epoxy zinc-rich primer layer.

Preferably, the thickness of the fire-proof layer is 30-40 μm.

Preferably, according to any of the above schemes, the fire-proof layer is a FEVE fluorocarbon resin fire-proof coating.

Preferably, the thickness of the finishing paint layer is 90-150 μm.

Preferably, according to any one of the above schemes, the top paint layer is an aqueous polyurethane top paint layer.

The utility model has the advantages that:

the finish paint layer has excellent fullness, glossiness, scratch resistance, weather resistance, water resistance and chemical resistance, and has good interlayer adhesion;

the fireproof layer effectively prevents external open fire from directly influencing the internal coating;

the second stripping layer is arranged on the primer layer, and can be shrunk when the inside of the coating layer is burnt, so that the second stripping layer bears a larger contraction force and is directly stripped from the primer layer, and the cracking of the primer layer caused by overlarge heating is effectively avoided; in a similar way, the first stripping layer is reduced when being burnt in the coating, so that the cracking of the base material layer caused by overlarge heating is effectively avoided; the first stripping layer and the second stripping layer are arranged in a double-layer mode, when fire only spreads to the second stripping layer, the second stripping layer is reduced, and influences on the primer layer, the first stripping layer and the base material layer of the lower layer are avoided;

the thicknesses of the first stripping layer and the second stripping layer are both 50-150 mu m, so that the tensile strength is effectively ensured, and the practical stripping effect is increased;

the utility model discloses can provide the effect of fire protection, conveniently peel off simultaneously, the film is not cracked when peeling off, can not take place to remain.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure:

1. a substrate layer; 2. a first peeling layer; 3. a primer layer;

4. a second release layer; 5. a fire barrier layer; 6. and a finishing paint layer.

Detailed Description

The technical solution of the present invention is further explained by the following specific examples.

As shown in figure 1, the structure of the temporary protective water-based peelable coating comprises a substrate layer 1, a first peeling layer 2, a primer layer 3, a second peeling layer 4, a fireproof layer 5 and a finish paint layer 6, wherein the first peeling layer 2, the primer layer 3, the second peeling layer 4, the fireproof layer 5 and the finish paint layer 6 are sequentially consolidated on the substrate layer 1 from bottom to top, and the total thickness of the peelable coating is 250-.

The peeling effect of the peeling coating becomes better with the increase of the film thickness, when the dry film thickness is less than 50 μm, the peeling effect is reduced, the paint film is easy to break and then remains, however, the increase of the film thickness is the practical effect of effectively increasing the tensile strength and increasing the peeling, but the cost is also increased.

Therefore, the thickness of the first peeling layer 2 and the second peeling layer 4 is set to be 50 to 150 μm in consideration of the peeling effect and the cost; preferably, the thickness of each of the first peeling layer 2 and the second peeling layer 4 is set to 70 to 100 μm.

When the surface of the substrate is smooth and flat, the first peeling layer 2 and the second peeling layer 4 may be provided to be thin and set to 70 to 100 μm; while the substrate surface is rough, the first peeling layer 2 and the second peeling layer 4 are relatively thick and set to be 50 to 150 μm so that the peeling layers are relatively easily peeled off from the substrate surface.

The thickness of the primer layer 3 is 80-90 μm, and the primer layer 3 is an epoxy zinc-rich primer layer; strong adhesion, strong anti-permeability performance and long-acting corrosion resistance;

the thickness of the fire-proof layer 5 is 30-40 μm, and the fire-proof layer 5 is a FEVE fluorocarbon resin fire-proof coating; the fireproof layer effectively prevents external open fire from directly influencing the internal coating;

the primer layer 3 is provided with the second stripping layer 4, the second stripping layer 4 is shrunk when the inside of the coating is burnt, so that the second stripping layer 4 is subjected to a larger contraction force, and the second stripping layer 4 is directly stripped from the primer layer 3, thereby effectively avoiding the cracking caused by the overlarge heating of the primer layer 3; in a similar way, the first stripping layer 2 is also reduced when being burnt in the coating, so that the cracking caused by over-heating of the base material layer 1 is effectively avoided; the first stripping layer 2 and the second stripping layer 4 are arranged in two layers, and when the fire only spreads to the second stripping layer 4, the second stripping layer 4 is shrunk to avoid the influence on the primer layer 3, the first stripping layer 2 and the substrate layer 1 of the lower layer.

The thickness of the surface paint layer 6 is 90-150 mu m, the surface paint layer 6 is a water-based polyurethane surface paint coating, and the surface paint coating has excellent fullness, glossiness, scratch resistance, weather resistance, water resistance and chemical resistance and has good interlayer adhesion with a fireproof layer.

The water-based strippable paint can be applied to more fields, including weaponry, ship buildings, automobile parts, port machine transportation, electronic equipment, wood furniture, precise instruments, glass curtain walls and the like.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A structure for temporarily protecting an aqueous peelable coating, comprising: the fireproof paint comprises a substrate layer, a first stripping layer, a primer layer, a second stripping layer, a fireproof layer and a finish paint layer, wherein the first stripping layer, the primer layer, the second stripping layer, the fireproof layer and the finish paint layer are sequentially fixedly connected on the substrate layer from bottom to top, and the total thickness of the strippable coating is 250-fold 530 mu m.

2. A structure for temporary protection of an aqueous peelable coating according to claim 1 wherein: the first and second peeling layers each have a thickness of 50 to 150 μm.

3. A structure for temporary protection of an aqueous peelable coating according to claim 2 wherein: the first and second peeling layers each have a thickness of 70 to 100 μm.

4. A structure for temporary protection of an aqueous peelable coating according to claim 3 wherein: the thickness of the primer layer is 80-90 μm.

5. A structure for temporary protection of water-based peelable coating according to claim 4, wherein: the primer layer is an epoxy zinc-rich primer layer.

6. A structure for temporary protection of water-based peelable coating according to claim 5, wherein: the thickness of the fire-proof layer is 30-40 μm.

7. A structure for temporary protection of water-based peelable coating according to claim 6, wherein: the fireproof layer is an FEVE fluorocarbon resin fireproof coating.

8. A structure for temporary protection of water-based peelable coating according to claim 7, wherein: the thickness of the finishing paint layer is 90-150 mu m.

9. A structure for temporary protection of an aqueous peelable coating according to claim 8 wherein: the finish paint layer is a water-based polyurethane finish paint layer.