Flame-retardant scratch-resistant PVC (polyvinyl chloride) film

Abstract

The utility model relates to the related field of PVC (polyvinyl chloride) films, in particular to a flame-retardant scratch-resistant PVC film, which comprises a first PVC film, a second PVC film, a scratch-resistant layer, a flame-retardant layer and the like. According to the anti-scratch PVC film, the anti-scratch layer and the flame-retardant layer are arranged, the flame-retardant layer improves the flame-retardant capability of the PVC film and improves the safety of the PVC film, and the nano ceramic coating can greatly enhance the surface hardness and wear resistance of the PVC film and improve the anti-scratch capability of the PVC film; the UV absorbent coating and the polyurethane coating respectively improve the ultraviolet resistance and the impact resistance of the PVC film, so that the PVC film can better cope with external ultraviolet radiation and physical impact, and the comprehensive physical properties of the PVC film can be maintained to a certain extent, thereby indirectly contributing to improving the scratch resistance of the material, preventing the PVC film from being scratched due to external acting force, and prolonging the service life of the PVC film. The attractiveness of the PVC film is improved, the service life of the PVC film is prolonged, and the practicability of the PVC film is improved.

Description

Technical Field

[0001] The utility model relates to the field of PVC films, in particular to a flame-retardant and scratch-resistant PVC film. Background Art

[0002] PVC film, full name polyvinyl chloride film, is a plastic film mainly made of polyvinyl chloride resin, processed through a specific process by adding auxiliary materials such as plasticizers, stabilizers, lubricants, etc. PVC films are widely used in multiple industries such as industry, agriculture, construction, decoration, packaging, and medical due to their good corrosion resistance, chemical resistance, flexibility, and plasticity. The existing household PVC films have poor flame retardancy and scratch resistance, which easily reduces the safety of PVC films during use. The poor scratch resistance of PVC films easily causes scratches on the PVC films due to external forces, which greatly affects the aesthetics of PVC films. At the same time, it also easily shortens the service life of PVC films and reduces the practicality of PVC films. Summary of the Invention

[0003] Therefore, to solve the above deficiencies, the utility model provides a flame-retardant and scratch-resistant PVC film to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: A flame-retardant and scratch-resistant PVC film includes a first PVC film and a second PVC film arranged on the first PVC film. A flame-retardant layer is arranged between the first PVC film and the second PVC film, and an anti-scratch layer is arranged on the second PVC film;

[0005] The anti-scratch layer includes a polyurethane coating, a UV absorber coating, and a nano-ceramic coating evenly arranged on the top surface of the second PVC film from bottom to top in sequence.

[0006] Preferably, the flame-retardant layer is an aluminum hydroxide coating arranged between the first PVC film and the second PVC film.

[0007] Preferably, a number of intumescent red phosphorus flame-retardant particles and a number of magnesium hydroxide flame-retardant particles are embedded in the aluminum hydroxide coating.

[0008] Preferably, a silane coupling agent layer is coated on each of the upper and lower end faces of the aluminum hydroxide coating, and the aluminum hydroxide coating is connected to the second PVC film and the first PVC film respectively through the upper and lower two silane coupling agent layers.

[0009] Advantages of the Utility Model

[0010] The utility model improves the flame retardancy of the PVC film by setting a flame retardant layer, enhances the protection effect of the PVC film on household products, improves the safety of the PVC film. By setting the nano-ceramic coating, the surface hardness and wear resistance of the PVC film can be greatly enhanced, and the scratch resistance of the PVC film can be improved. The UV absorber coating and the polyurethane coating improve the UV resistance and impact resistance of the PVC film respectively, enabling the PVC film to better cope with external UV radiation and physical impacts, maintaining the comprehensive physical properties of the PVC film to a certain extent, thus indirectly contributing to improving the scratch resistance of the material, preventing the PVC film from leaving scratches due to external forces, improving the aesthetics of the PVC film, being beneficial to increasing the service life of the PVC film, and enhancing the practicality of the PVC film. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is of the utility model Figure 1 is an enlarged schematic diagram of the sectional structure at A in;

[0013] Figure 3 is of the utility model Figure 1 is an enlarged schematic diagram of the sectional structure at B in.

[0014] Wherein: the first PVC film - 1, the second PVC film - 2, the scratch-resistant layer - 3, the flame retardant layer - 4, the polyurethane coating - 31, the UV absorber coating - 32, the nano-ceramic coating - 33, the aluminum hydroxide coating - 41, the intumescent red phosphorus flame retardant particles - 42, the magnesium hydroxide flame retardant particles - 43, the silane coupling agent layer - 44. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to further explain the technical solution of the utility model, the following will be elaborated in detail through specific embodiments.

[0016] As Figure 1 shown, the utility model provides a flame retardant and scratch-resistant PVC film, including a first PVC film 1 and a second PVC film 2 provided on the first PVC film 1;

[0017] As Figures 1 to 3 shown, in this embodiment, a flame retardant layer 4 for improving the flame retardancy of the PVC film is provided between the first PVC film 1 and the second PVC film 2, and a scratch-resistant layer 3 is provided on the second PVC film 2 for improving the scratch resistance of the PVC film;

[0018] The scratch-resistant layer 3 includes a polyurethane coating 31, a UV absorber coating 32, and a nano-ceramic coating 33 which are uniformly provided on the top surface of the second PVC film 2 in sequence from bottom to top;

[0019] In this embodiment, the flame retardant layer 4 is an aluminum hydroxide coating 41 provided between the first PVC film 1 and the second PVC film 2;

[0020] In this embodiment, a number of intumescent red phosphorus flame retardant particles 42 and a number of magnesium hydroxide flame retardant particles 43 are embedded in the aluminum hydroxide coating 41 to further improve the flame retardant effect of the PVC film;

[0021] In this embodiment, a layer of silane coupling agent layer 44 is coated on each of the upper and lower end faces of the aluminum hydroxide coating 41, and the aluminum hydroxide coating 41 is connected to the second PVC film 2 and the first PVC film 1 respectively through the upper and lower layers of silane coupling agent layers 44. By setting the silane coupling agent layer 44, the aluminum hydroxide coating 41 is more stably connected to the first PVC film 1 and the second PVC film 2, so that the first PVC film 1 and the second PVC film 2 are not easily detached from the aluminum hydroxide coating 41. Therefore, when burning, the aluminum hydroxide coating 41 can more effectively exert its flame retardant effect;

[0022] Specifically, in use, the polyurethane coating 31 and the UV absorber coating 32 respectively improve the impact resistance and UV resistance of the PVC film. Although improving the UV resistance and impact resistance of the PVC film is mainly to cope with external UV radiation and physical impacts, they can both maintain the comprehensive physical properties of the PVC film to a certain extent, thereby indirectly helping to improve the scratch resistance of the PVC film. The nano-ceramic coating 33 can greatly enhance the surface hardness and wear resistance of the PVC film. It has extremely high hardness and good chemical corrosion resistance, and can effectively improve the scratch resistance of the PVC film;

[0023] And when the PVC burns, the aluminum hydroxide coating 41 provided can decompose and absorb heat at high temperature, and at the same time release water vapor, which helps to dilute the concentration of combustible gases and play a flame retardant role. When the PVC film burns, the intumescent red phosphorus flame retardant particles 42 can promote the formation of a carbon layer, effectively isolate oxygen, and further enhance the flame retardant effect of the PVC film. The magnesium hydroxide flame retardant particles 43 also release water vapor when heated, and synergistically enhance the flame retardant effect of the PVC film. By improving the flame retardant effect of the PVC film, the safety during the use of the PVC film is improved, and to a certain extent, the safety of the materials covered by the PVC film is also improved.

[0024] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flame-retardant and scratch-resistant PVC film, comprising a first PVC film and a second PVC film disposed on the first PVC film; It is characterized in that A flame-retardant layer is provided between the first PVC film and the second PVC film, and a scratch-resistant layer is provided on the second PVC film; The scratch-resistant layer comprises a polyurethane coating, a UV absorber coating, and a nano-ceramic coating which are uniformly arranged on the top surface of the second PVC film from bottom to top in sequence.

2. The flame-retardant and scratch-resistant PVC film according to claim 1, wherein: The flame-retardant layer is an aluminum hydroxide coating disposed between the first PVC film and the second PVC film.

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