Environment-friendly cold-resistant PVC reflective material

Abstract

The utility model discloses an environment-friendly cold-resistant PVC (polyvinyl chloride) reflective material, and particularly relates to the technical field of reflective materials, the reflective material comprises a reflective material main body, the reflective material main body comprises a PVC base film and a PTU elastic film, the PVC base film is the main body part of the PVC reflective material, an easily degradable PVDF (polyvinylidene fluoride) fiber film is arranged between the PVC base film and the PTU elastic film, the PVC base film comprises a plurality of combination sheets, and the combination sheets are arranged on the PVC base film. The structures of the PVC base film and the PTU elastic film are completely the same. According to the utility model, the easily degradable PVDF fiber membrane is arranged between the PVC base membrane and the PTU elastic membrane, and the PVC base membrane and the PTU elastic membrane are not formed by splicing a plurality of combined sheets, so that after the PVC base membrane and the PTU elastic membrane are abandoned, the PVDF fiber membrane is degraded firstly and the PVC base membrane and the PTU elastic membrane are dispersed into the combined sheets, the degradation efficiency is improved, the crushing step is omitted, and the process is quicker and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of reflective materials, in particular to an environmentally friendly and cold-resistant PVC reflective material. Background Art

[0002] Reflective film is commonly used in the field of traffic safety, such as traffic signs, traffic markings, etc. Traffic signs covered with reflective film can be more eye-catching in bad weather conditions, ensuring driving safety.

[0003] Reflective film is a composite material, generally using PVC, PET and other films as the base material, on this basis, glass bead technology, micro prism technology, etc. are added, so that the base material has reflective properties, such as a reflective heat-insulating material with publication number CN217729930U in the prior art.

[0004] The reflective film covering traffic signs needs to be used in outdoor environments. After a long period of exposure to wind and sun, it will inevitably become damaged and aged, and therefore needs to be replaced. Since its basic materials are PVC, PET, etc., these materials are difficult to degrade, so the replaced old reflective film cannot be discarded at will;

[0005] When old reflective film is discarded as garbage, in order to improve the degradation efficiency of microorganisms, it can be crushed before disposal to increase its contact area with the soil, but the crushing process is relatively cumbersome. Utility Model Content

[0006] The purpose of the utility model is to provide an environmentally friendly and cold-resistant PVC reflective material. By arranging an easily degradable PVDF fiber membrane between the PVC base membrane and the PTU elastic membrane, after being discarded, the PVDF fiber membrane will be degraded first and cause the PVC base membrane and the PTU elastic membrane to be dispersed into combined sheets, thereby improving the degradation efficiency and eliminating the crushing step, which is faster and more convenient.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an environmentally friendly and cold-resistant PVC reflective material, comprising a reflective material body, wherein the reflective material body comprises a PVC base film and a PTU elastic film, wherein the PVC base film is the main part of the PVC reflective material, and a degradable PVDF fiber film is provided between the PVC base film and the PTU elastic film;

[0008] The PVC base film includes multiple composite sheets. The structures of the PVC base film and the PTU elastic film are exactly the same. Therefore, once the PVDF fiber membrane is degraded, the PVC base film and the PTU elastic film will quickly disperse. There is a seam between any two adjacent composite sheets. The seams between the composite sheets on the PVC base film and the seams between the composite sheets on the PTU elastic film are staggered. Therefore, the composite sheets on the PTU elastic film can reinforce the seams between the composite sheets on the PVC base film. The PTU elastic film is elastic and can buffer the tension, thereby preventing the composite sheets on the PVC base film from being torn by external forces at the seams.

[0009] Furthermore, the PVC base membrane is fixed on the top of the PVDF fiber membrane, the bottom of the PVDF fiber membrane is fixed with a reflective layer, and the PTU elastic membrane is fixed on the bottom of the reflective layer. A reflective layer can be formed by aluminum plating to play a reflective role.

[0010] Furthermore, a plurality of micro-reflective glass beads are embedded in the interior of the PVC base film, and the micro-reflective glass beads are evenly distributed inside each composite piece of the PVC base film. The micro-reflective glass beads give the PVC base film a reflective property, and the even distribution of the micro-reflective glass beads makes the overall reflective effect of the PVC base film more uniform.

[0011] Furthermore, an adhesive layer is fixedly provided at the bottom end of the PTU elastic film, and a release paper is adhered to the bottom end of the adhesive layer. The PVC reflective material can be adhered to carriers such as walls and road signs through the adhesive layer.

[0012] Furthermore, a surface layer is provided on the top of the composite sheet, which has a protective effect on the PVC reflective material. The surface layer includes a UV coating fixed on the top of the composite sheet. The UV coating is applied to the top of the composite sheet and cured by ultraviolet radiation to form a UV coating. The UV coating does not contain volatile components and therefore does not cause environmental pollution. The UV coating can improve the hardness and corrosion resistance of the PVC base film, thereby increasing its service life. An EVA waterproof film is fixed on the top of the UV coating. The main component of the EVA waterproof film is ethylene-vinyl acetate copolymer, which is a degradable and environmentally friendly material and has excellent waterproof and anti-seepage functions, making the PVC reflective material less susceptible to moisture erosion and aging.

[0013] Furthermore, a transparent heat-insulating coating is sprayed on the top of the EVA waterproof membrane. The main component of the transparent heat-insulating coating is indium tin oxide. While having high light transmittance, it also has excellent heat-insulating performance, thereby hindering the flow of heat and protecting the PVC reflective material under cold weather conditions. A transparent wear-resistant coating is sprayed on the top of the transparent heat-insulating coating. The main components of the transparent wear-resistant coating are polyester resin, curing agent, etc., which can improve the surface strength of the PVC reflective material and reduce wear during use.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By setting a degradable PVDF fiber membrane between the PVC base membrane and the PTU elastic membrane, and neither the PVC base membrane nor the PTU elastic membrane is spliced ​​together with multiple composite pieces, after being discarded, the PVDF fiber membrane will be degraded first and cause the PVC base membrane and the PTU elastic membrane to be dispersed into composite pieces, which improves the degradation efficiency while eliminating the crushing step, making it faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a cross-sectional view of the utility model;

[0018] Figure 2 This is a cross-sectional view of the reflective material body of the present utility model;

[0019] Figure 3 For the utility model Figure 2 Enlarged view of part A in the middle;

[0020] Figure 4 This is a structural diagram of the PVC base film of the utility model;

[0021] Figure 5 This is an exploded view of the surface of the present utility model.

[0022] Description of reference numerals:

[0023] 1. Surface layer; 101. UV coating; 102. EVA waterproof membrane; 103. Transparent heat-insulating coating; 104. Transparent wear-resistant coating; 2. Reflective material body; 3. Adhesive layer; 4. Release paper; 5. PVC base film; 501. Composite sheet; 6. TPU elastic film; 7. Micro-reflective glass beads; 8. PVDF fiber membrane; 9. Reflective layer. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides Figure 1-5 The environmentally friendly, cold-resistant PVC reflective material shown includes a reflective material body 2, which includes a PVC base film 5 and a PTU elastic film 6. The PVC base film 5 is the main part of the PVC reflective material. A degradable PVDF fiber film 8 is disposed between the PVC base film 5 and the PTU elastic film 6. An adhesive layer 3 is fixed to the bottom end of the PTU elastic film 6, and a release paper 4 is adhered to the bottom end of the adhesive layer 3.

[0026] The PVC base film 5 is fixed on the top of the PVDF fiber membrane 8, the bottom of the PVDF fiber membrane 8 is fixed with a reflective layer 9, and the PTU elastic film 6 is fixed on the bottom of the reflective layer 9. The reflective layer 9 can be formed by aluminum plating to play a reflective role.

[0027] The PVC base film 5 is inlaid with a plurality of micro-reflective glass beads 7, and the micro-reflective glass beads 7 are evenly distributed inside each composite piece 501 of the PVC base film 5. The micro-reflective glass beads 7 give the PVC base film 5 a reflective property, and the even distribution of the micro-reflective glass beads 7 makes the overall reflective effect of the PVC base film 5 more uniform.

[0028] By setting micro-reflective glass beads 7 inside the PVC base film 5 and aluminum-plating the bottom end of the PVDF fiber film 8 to make a reflective layer 9, the PVC reflective material has the basic reflective function. In actual use, the release paper 4 is torn off from the bottom end of the adhesive layer 3 to expose the adhesive layer 3 to the outside, and then the PVC reflective material is adhered to the carrier through the adhesive layer 3.

[0029] In order to facilitate degradation after disposal, Figure 2 、 4 As shown, the PVC base film 5 includes multiple composite sheets 501. The structures of the PVC base film 5 and the PTU elastic film 6 are exactly the same. Therefore, once the PVDF fiber membrane 8 is degraded, the PVC base film 5 and the PTU elastic film 6 will quickly disperse. There is a seam between any two adjacent composite sheets 501. The seams between the composite sheets 501 on the PVC base film 5 and the seams between the composite sheets 501 on the PTU elastic film 6 are staggered with each other. Therefore, the composite sheets 501 on the PTU elastic film 6 can reinforce the seams between the composite sheets 501 on the PVC base film 5. The PTU elastic film 6 is elastic and can buffer the tension, thereby preventing the composite sheets 501 on the PVC base film 5 from being torn by external force at the seams.

[0030] The PVC base film 5 and the PTU elastic film 6 are fixed on the PVDF fiber membrane 8 from the upper and lower sides respectively. The PVC base film 5 and the PTU elastic film 6 are identical in structure and are both composed of multiple assembled pieces 501 arranged and spliced ​​together. After being discarded, if the entire piece of PVC reflective material is directly discarded, the PVDF fiber membrane 8 will be degraded first. After the PVDF fiber membrane 8 is degraded, the PVC base film 5 and the PTU elastic film 6 attached to the PVDF fiber membrane 8 will directly disperse and be divided into multiple assembled pieces 501. The dispersed PVC base film 5 and the PTU elastic film 6 will be in more complete contact with the soil, microorganisms, water and other substances in the external environment, and the degradation efficiency will be higher, thus being more environmentally friendly. In addition, by providing the PVDF fiber membrane 8, while ensuring high degradation efficiency, the processing step of crushing before degradation is omitted, which is faster and more convenient.

[0031] In order to improve the performance of the PVC reflective material, Figure 1 、 5 As shown, a surface layer 1 is provided on the top of the composite sheet 501, and the surface layer 1 has a protective effect on the PVC reflective material. The surface layer 1 includes a UV coating 101 fixedly provided on the top of the composite sheet 501. The UV coating is applied to the top of the composite sheet 501 and is cured by ultraviolet radiation to form the UV coating 101. The UV coating 101 does not contain volatile components and therefore does not cause environmental pollution. The UV coating 101 can improve the hardness and corrosion resistance of the PVC base film 5, thereby increasing its service life. An EVA waterproof membrane 102 is fixedly provided on the top of the UV coating 101. The main component of the EVA waterproof membrane 102 is ethylene-vinyl acetate copolymer, which is a degradable and environmentally friendly material and has excellent waterproof and anti-seepage functions, making the PVC reflective material less susceptible to moisture erosion and aging.

[0032] The top of the EVA waterproof membrane 102 is sprayed with a transparent heat-insulating coating 103. The main component of the transparent heat-insulating coating 103 is indium tin oxide. While having high light transmittance, it also has excellent heat-insulating performance, thereby hindering the flow of heat and protecting the PVC reflective material under cold weather conditions. The top of the transparent heat-insulating coating 103 is sprayed with a transparent wear-resistant coating 104. The main components of the transparent wear-resistant coating 104 are polyester resin, curing agent, etc., which can improve the surface strength of the PVC reflective material and reduce wear during use.

[0033] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An environmentally friendly and cold-resistant PVC reflective material, comprising a reflective material body (2), characterized in that: The reflective material body (2) comprises a PVC base film (5) and a PTU elastic film (6), and an easily degradable PVDF fiber film (8) is provided between the PVC base film (5) and the PTU elastic film (6); The PVC base film (5) comprises a plurality of composite sheets (501), the structures of the PVC base film (5) and the PTU elastic film (6) are completely identical, there is a seam between any two adjacent composite sheets (501), and the seams between the composite sheets (501) on the PVC base film (5) and the seams between the composite sheets (501) on the PTU elastic film (6) are staggered.

2. The environmentally friendly and cold-resistant PVC reflective material according to claim 1, characterized in that: The PVC base film (5) is fixedly arranged on the top of the PVDF fiber film (8), the bottom of the PVDF fiber film (8) is fixedly provided with a reflective layer (9), and the PTU elastic film (6) is fixedly arranged on the bottom of the reflective layer (9).

3. The environmentally friendly and cold-resistant PVC reflective material according to claim 1, characterized in that: A plurality of micro-reflective glass beads (7) are embedded in the interior of the PVC base film (5), and the micro-reflective glass beads (7) are evenly distributed inside each composite sheet (501) of the PVC base film (5).

4. The environmentally friendly and cold-resistant PVC reflective material according to claim 1, characterized in that: An adhesive layer (3) is fixedly provided at the bottom end of the PTU elastic film (6), and a release paper (4) is adhered to the bottom end of the adhesive layer (3).

5. The environmentally friendly and cold-resistant PVC reflective material according to claim 1, characterized in that: The top of the composite sheet (501) is provided with a surface layer (1), and the surface layer (1) includes a UV coating (101) fixedly provided on the top of the PVC base film (5), and an EVA waterproof film (102) is fixedly provided on the top of the UV coating (101).

6. The environmentally friendly and cold-resistant PVC reflective material according to claim 5, characterized in that: The top of the EVA waterproof membrane (102) is sprayed with a transparent heat-insulating coating (103), and the top of the transparent heat-insulating coating (103) is sprayed with a transparent wear-resistant coating (104).

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