High-strength heat-insulating PVC (polyvinyl chloride) film

Abstract

The utility model relates to the related field of PVC (polyvinyl chloride) films, in particular to a high-strength heat-insulating PVC film which comprises a first PVC film, a second PVC film, a nano zinc oxide coating, a fluorocarbon resin coating, ceramic particles, micro grooves, a warp layer, a weft layer, a polyurethane resin coating and the like. By arranging the netted warp layer, the netted weft layer and the polyurethane resin coating, the stretching resistance of the PVC film is improved, the strength of the PVC film is improved, the service life of the PVC film is prolonged, and the nano zinc oxide coating can effectively block heat transfer, so that the heat insulation effect of the PVC film is improved, the PVC film can meet the heat insulation requirement, and the service life of the PVC film is prolonged. The micro grooves are formed, so that the permeation area of the adhesive can be increased, the adhesive can be distributed more uniformly, the overall bonding strength is improved, the edge warping condition of the PVC film is reduced, the attractiveness of the PVC film is improved, the tearing or falling of the PVC film is reduced, and the stability of the PVC film in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the field of PVC films, in particular to a high-strength heat-insulating PVC film. Background Art

[0002] PVC film, or polyvinyl chloride film, is a widely used synthetic material film. It is made of polyvinyl chloride resin as the main raw material, and is made by adding plasticizers, stabilizers, lubricants and other auxiliary materials, and through mixing, plasticizing, extruding, cooling, pulling, winding and other processes. Due to its low cost and good flexibility, PVC film is widely used in the packaging industry, construction industry, and electronic appliances and other fields. The existing PVC film has low strength, which makes the PVC film easy to break when subjected to external forces, thereby reducing the service life of the PVC film. In addition, the existing PVC film has poor thermal insulation performance, and it is difficult for PVC film to meet the needs of applications that require good thermal insulation performance. In addition, the existing PVC film may affect the aesthetics due to uneven adhesive coating when pasted, and the warped part is easy to further tear or fall off, which easily reduces the stability of the PVC film during use. Summary of the invention

[0003] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a high-strength heat-insulating PVC film to solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: a high-strength heat-insulating PVC film, comprising a first PVC film and a second PVC film arranged on the top of the first PVC film, wherein a warp layer and a weft layer are arranged between the first PVC film and the second PVC film;

[0005] The bottom end surface of the first PVC film is provided with a plurality of micro grooves;

[0006] The top of the second PVC film is coated with a nano zinc oxide coating, and the top of the nano zinc oxide coating is coated with a fluorocarbon resin coating;

[0007] The warp layer and the weft layer are interwoven to form a reinforcing net, and the upper and lower end surfaces of the reinforcing net are respectively coated with a layer of polyurethane resin coating, and the reinforcing net is connected to the second PVC film and the first PVC film through the upper and lower polyurethane resin coatings.

[0008] Preferably, a plurality of ceramic particles are embedded in the nano zinc oxide coating.

[0009] Preferably, the warp layer and the weft layer are both glass fiber yarns.

[0010] Preferably, the thickness of the fluorocarbon resin coating is 10 μm to 25 μm.

[0011] Beneficial effects of the utility model:

[0012] The utility model improves the tensile strength of the PVC film by arranging a mesh warp layer and a weft layer and a polyurethane resin coating, thereby improving the strength of the PVC film and increasing the service life of the PVC film. The nano zinc oxide coating can effectively block heat transfer, thereby improving the thermal insulation effect of the PVC film, so that the PVC film can meet the thermal insulation needs. The micro grooves can increase the penetration area of ​​the adhesive, so that the adhesive can be more evenly distributed, thereby improving the overall bonding strength, reducing the warping of the PVC film, improving the aesthetics of the PVC film, reducing the tearing or falling off of the PVC film, and improving the stability of the PVC film during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 The utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0015] Among them: a first PVC film-1, a second PVC film-2, a nano zinc oxide coating-3, a fluorocarbon resin coating-4, ceramic particles-5, micro grooves-6, a warp layer-7, a weft layer-8, and a polyurethane resin coating-9. DETAILED DESCRIPTION

[0016] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0017] like Figure 1 As shown, the utility model provides a high-strength heat-insulating PVC film, comprising a first PVC film 1 and a second PVC film 2 arranged on the top of the first PVC film 1. The first PVC film 1 and the second PVC film 2 are arranged to form a double PVC film, which is beneficial to improving the strength of the PVC film;

[0018] like Figure 1 and Figure 2 As shown, in this embodiment, a warp layer 7 and a weft layer 8 are provided between the first PVC film 1 and the second PVC film 2;

[0019] The bottom end surface of the first PVC film 1 is provided with a plurality of micro grooves 6;

[0020] The top of the second PVC film 2 is uniformly coated with a nano zinc oxide coating 3, and the top of the nano zinc oxide coating 3 is uniformly coated with a fluorocarbon resin coating 4;

[0021] The warp layer 7 and the weft layer 8 are interwoven vertically and horizontally to form a reinforcing net, which is used to improve the strength of the PVC film, and the upper and lower end surfaces of the reinforcing net are each coated with a layer of polyurethane resin coating 9, and the reinforcing net is respectively connected to the second PVC film 2 and the first PVC film 1 through the upper and lower layers of polyurethane resin coating 9. The polyurethane resin coating 9 is set so that the reinforcing net can more stably connect the second PVC film 2 and the first PVC film 1;

[0022] In this embodiment, a plurality of ceramic particles 5 are embedded in the nano zinc oxide coating 3. The ceramic particles 5 can enhance the thermal radiation performance of the PVC film and improve the thermal insulation effect of the PVC film.

[0023] In this embodiment, the warp layer 7 and the weft layer 8 are both glass fiber yarns, which are beneficial to enhancing the tensile strength and tear resistance of the PVC film;

[0024] In this embodiment, the thickness of the fluorocarbon resin coating 4 is 15 μm, which can not only make the PVC film have good hydrophobic properties, but also better control the production cost of the PVC film;

[0025] Specifically, the tensile strength and tear resistance of the PVC film are enhanced by the mesh warp layer 7 and the weft layer 8 supported by the glass fiber yarns, and the polyurethane resin coating 9 can not only improve the stability of the warp layer 7 and the weft layer 8 connecting the first PVC film 1 and the second PVC film 2, but also the polyurethane resin coating 9 has good elasticity, wear resistance and chemical resistance, and can provide additional mechanical strength and tear resistance for the PVC film, thereby further improving the strength of the PVC film;

[0026] The nano zinc oxide coating 3 has good ultraviolet blocking performance and infrared reflecting performance, which can effectively block heat transfer, thereby improving the thermal insulation effect of the PVC film, and the ceramic particles 5 can enhance the thermal radiation performance, which is beneficial to further improve the thermal insulation effect of the PVC film;

[0027] When pasting the PVC film, the adhesive is coated on the bottom of the first PVC film, and the adhesive penetrates into the micro groove 6. The micro groove 6 can increase the penetration area of ​​the adhesive, so that the adhesive can be distributed more evenly, thereby improving the overall bonding strength of the PVC film and reducing the warping of the PVC film.

[0028] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength heat-insulating PVC film, comprising a first PVC film and a second PVC film arranged on top of the first PVC film; It is characterized in that A warp layer and a weft layer are provided between the first PVC film and the second PVC film; The bottom end surface of the first PVC film is provided with a plurality of micro grooves; The top of the second PVC film is coated with a nano zinc oxide coating, and the top of the nano zinc oxide coating is coated with a fluorocarbon resin coating; The warp layer and the weft layer are interwoven to form a reinforcing net, and the upper and lower end surfaces of the reinforcing net are respectively coated with a layer of polyurethane resin coating, and the reinforcing net is connected to the second PVC film and the first PVC film through the upper and lower polyurethane resin coatings.

2. The high-strength heat-insulating PVC film according to claim 1, characterized in that: A plurality of ceramic particles are embedded in the nano zinc oxide coating.

3. The high-strength heat-insulating PVC film according to claim 1, characterized in that: The warp layer and the weft layer are both glass fiber yarns.

4. The high-strength heat-insulating PVC film according to claim 1, characterized in that: The thickness of the fluorocarbon resin coating is 10 μm to 25 μm.

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