PVC (polyvinyl chloride) film with flame-retardant function
By setting a flame retardant layer and a zigzag strip structure in the PVC film, the flammability problem of PVC film is solved, and the flame retardant and carbonization insulation effect is achieved, improving its safety and convenience of use.
Patent Information
- Application Number
- CN202421204997.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Due to the flammability, PVC films have safety risks, which limits their wide application as packaging and decoration materials.
A PVC film with flame retardant function was designed. By setting a flame retardant layer and a glued layer on the side of the polyvinyl chloride body layer, and several stacked zigzag strips were provided on the surface of the flame retardant layer, using diamond film and pyrolysis. Carbon film, carbon or graphite film serves as flame retardant layers, and zigzag strips are carbonized as organic fiber materials at high temperatures, and are protected by fish scale-like laminated structures and inclined settings.
The flame retardant effect and carbonization insulation effect of PVC film are achieved, which improves its safety and convenience of use at high temperatures, enhances the protection of the flame retardant layer, prevents physical damage, and is hydrophobic.
Smart Images
Figure CN222362071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a film, more specifically to a PVC film with flame retardant function. Background Art
[0002] The main component of PVC film is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is a synthetic material that is popular and widely used in the world today. The global usage of PVC film ranks second among various synthetic materials. Among the materials that can produce three-dimensional surface films, PVC is the most suitable material. PVC film can be divided into PVC soft film and PVC hard film. Among them, hard PVC accounts for about 2 / 3 of the market, and soft PVC accounts for 1 / 3. Soft PVC is generally used for floors, ceilings and the surface of leather, but because soft PVC contains softeners (this is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to preserve, so its scope of use is limited. Hard PVC does not contain softeners, so it has good flexibility, is easy to form, is not brittle, is non-toxic and pollution-free, and has a long shelf life, so it has great development and application value. However, PVC film does not have a flame retardant effect. When it is used as a packaging material or decoration material, it is flammable and prone to safety hazards. Summary of the invention
[0003] In view of the deficiencies in the prior art, the utility model provides a PVC film with a flame retardant function, which has the beneficial effects of being flame retardant, convenient to use, and carbonized heat insulation.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a PVC film with flame retardant function, characterized in that it includes a polyvinyl chloride main body layer and a flame retardant layer on one side of the main body layer, and an adhesive layer on the other side; a scale layer is provided on the surface of the flame retardant layer; the scale layer includes a plurality of stacked zigzag scale belts.
[0005] Through the above-mentioned structural setting, the polyvinyl chloride main layer, that is, PVC material, constitutes the main layer, which is the main component of the entire product, and the flame retardant layer plays a flame retardant effect. The adhesive layer is used to adhere the main layer to external objects, such as when used as a material for decorating walls, it can achieve connection. The serrated scale belt of the scale layer is an organic material, which is carbonized at high temperature, and the carbonized material can achieve flame retardancy.
[0006] The utility model is further configured as follows: the flame retardant layer is one of a diamond film, a pyrolytic carbon film, a carbon and a graphite film; the serrated scale band is an organic material, which is carbonized and flame retardant under high temperature combustion; the thickness of the flame retardant layer is less than the thickness of the main body layer.
[0007] Through the above structural setting, the diamond film, pyrolytic carbon film, carbon and graphite film can all play a flame retardant effect, and the serrated scale belt is made of organic fiber material.
[0008] The utility model is further configured as follows: one edge of the zigzag scale belt is glued to the flame retardant layer, and the other side is located above the edge of the next zigzag scale belt glued to the flame retardant layer, so that a plurality of stacked zigzag scale belts present a fish scale-like stacked structure.
[0009] Through the above-mentioned structural setting, the fish-scale stacking structure can effectively protect the flame retardant layer and prevent the flame retardant layer from being physically damaged by external forces.
[0010] The utility model is further configured as follows: the sawtooth scale belt is inclined relative to the flame retardant layer; the width of the sawtooth scale belt is 0.5-2 cm.
[0011] The utility model is further configured as follows: the adhesive layer is coated with a thin layer of glue, which can be glued and adhered to foreign objects; the thickness of the adhesive layer is less than the thickness of the main body layer and the flame retardant layer.
[0012] Through the above-mentioned structural setting, the serrated scales have a fish-scale-like stacked structure, so they are inclined relative to the flame-retardant layer and have a certain hydrophobicity. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Schematic diagram of the layer structure of this embodiment;
[0014] Figure 2 Schematic diagram of the surface structure of this embodiment.
[0015] Figure numerals: 1. main body layer; 2. flame retardant layer; 3. adhesive layer; 4. scale layer; 5. serrated scale belt. DETAILED DESCRIPTION
[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0017] This embodiment discloses a PVC film with flame retardant function, such as Figure 1 to Figure 2 As shown, it has the beneficial effects of flame retardancy, convenience in use, and carbonization heat insulation. It comprises a polyvinyl chloride body layer 1 and a flame retardant layer 2 provided on one side of the body layer 1, and a bonding layer 3 provided on the other side; a scale layer 4 is provided on the surface of the flame retardant layer 2; the scale layer 4 comprises a plurality of stacked zigzag scale bands 5.
[0018] Through the above-mentioned structural setting, the polyvinyl chloride main layer 1, that is, the PVC material, constitutes the main layer 1, which is the main component of the whole product, and the flame retardant layer 2 has a flame retardant effect. The adhesive layer 3 is used for bonding the main layer 1 with external objects, such as when used as a material for decorating walls, to achieve connection. The serrated scale band 5 of the scale layer 4 is an organic material, which is carbonized at high temperature, and the carbonized material can achieve flame retardancy.
[0019] The utility model is further configured as follows: the flame retardant layer 2 is one of a diamond film, a pyrolytic carbon film, a carbon and a graphite film; the serrated scale band 5 is an organic material, which is carbonized and flame retardant under high temperature combustion; the thickness of the flame retardant layer 2 is less than the thickness of the main body layer 1.
[0020] Through the above-mentioned structural setting, the diamond film, the pyrolytic carbon film, the carbon and the graphite film can all play a flame retardant effect, and the serrated scale belt 5 is made of organic fiber material.
[0021] The utility model is further configured as follows: one edge of the serrated scale belt 5 is glued to the flame retardant layer 2, and the other side is located above the edge of the next serrated scale belt 5 glued to the flame retardant layer 2, so that a plurality of stacked serrated scale belts 5 present a fish scale-like stacked structure.
[0022] Through the above-mentioned structural setting, the fish-scale stacking structure can effectively protect the flame-retardant layer 2 and prevent the flame-retardant layer 2 from being physically damaged by external forces.
[0023] The utility model is further configured as follows: the sawtooth scale belt 5 is tilted relative to the flame retardant layer 2; the sawtooth scale belt 5 has a width of 0.5-2 cm.
[0024] The utility model is further configured as follows: the bonding layer 3 is coated with a thin layer of glue, which can be bonded and adhered to foreign objects; the thickness of the bonding layer 3 is less than the thickness of the main body layer 1 and the flame retardant layer 2.
[0025] Through the above-mentioned structural arrangement, the zigzag scale belt 5 has a fish-scale-like stacked structure, so it is inclined relative to the flame-retardant layer 2 and has a certain hydrophobicity.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.
Claims
1. A flame retardant PVC film, characterized in that: It comprises a polyvinyl chloride main body layer (1) and a flame retardant layer (2) provided on one side of the main body layer (1), and a bonding layer (3) provided on the other side; a scale layer (4) is provided on the surface of the flame retardant layer (2); and the scale layer (4) comprises a plurality of stacked zigzag scale bands (5).
2. The flame retardant PVC film according to claim 1, characterized in that: The flame retardant layer (2) is one of a diamond film, a pyrolytic carbon film, a carbon and a graphite film; the sawtooth scale band (5) is an organic material and carbonizes to become flame retardant under high temperature combustion; the thickness of the flame retardant layer (2) is less than the thickness of the main body layer (1).
3. The flame retardant PVC film according to claim 2, characterized in that: One edge of the zigzag scale band (5) is glued to the flame retardant layer (2), and the other side is located above the edge of the next zigzag scale band (5) glued to the flame retardant layer (2), so that a plurality of stacked zigzag scale bands (5) present a fish scale-like stacked structure.
4. The flame retardant PVC film according to claim 3, characterized in that: The sawtooth scale band (5) is arranged obliquely relative to the flame retardant layer (2); the sawtooth scale band (5) has a width of 0.5-2 cm.
5. The flame retardant PVC film according to any one of claims 1 to 4, characterized in that: The adhesive layer (3) is coated with a thin layer of glue and can be glued and bonded to external objects; the thickness of the adhesive layer (3) is smaller than the thickness of the main body layer (1) and the flame retardant layer (2).