Impact-resistant and high-temperature-resistant PVC (polyvinyl chloride) film

Abstract

The utility model discloses an impact-resistant high-temperature-resistant PVC (polyvinyl chloride) film, which relates to the technical field of PVC films and comprises a base plate, a first side plate is connected to the top of the base plate, a second side plate is connected to the bottom of the base plate, and second roughing layers are arranged on two sides of the tops and two sides of the bottoms of the first side plate and the second side plate. Through the arrangement of the base plate, the first side plate, the second side plate, the first roughing layer and the second roughing layer, an original PVC film is divided into three parts, namely the base plate, the first side plate and the second side plate, and the three parts can be subjected to different modification schemes to improve different characteristics, such as high temperature resistance, impact resistance and wear resistance; the multiple modified PVC films are fixed into a whole in a bonding mode, only one coating needs to be coated on the surface, the operation difficulty is low, the yield is high, and due to the fact that the multiple modified PVC films are modified and enhanced differently, the use requirement is met, and too large negative effects on the structural strength cannot be generated.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC films, in particular to an impact-resistant and high-temperature-resistant PVC film. Background Art

[0002] PVC film is actually a sheet made of PVC. It is a kind of raw material and is used in the packaging industry, printing industry, construction industry, electronics industry, medical industry and automotive industry. For example, it is used to make packaging bags, packaging boxes, advertising posters, wallpapers, floors, chargers, infusion tubes, car interiors, etc.

[0003] The antistatic PVC film with application number 202320644690.9 includes a PVC substrate layer, a decorative layer is distributed on the upper surface of the PVC substrate layer, a first PET antistatic layer is distributed on the decorative layer, a TPU wear-resistant layer is distributed on the upper surface of the first PET antistatic layer, a first PFA hydrophobic layer is distributed on the TPU wear-resistant layer, a second PET antistatic layer is distributed on the lower surface of the PVC substrate layer, a second PFA hydrophobic layer is distributed on the lower surface of the second PET antistatic layer, and a plurality of mixed embedded structures are distributed on the upper and lower surfaces of the PVC substrate layer. As a result, it has a better antistatic effect, is not easy to adhere to dust on the surface when used for packaging and laying, has better cleanliness, and meets the application needs of multiple fields. It adopts a multi-level layered structure, has a better anti-pull effect, and is not easy to tear under force. The mixed embedded structure is adopted to meet the filling distribution of epoxy glue, and stratification will not easily occur after manufacturing.

[0004] For example, in the technical solution cited above, most PVC films are enhanced mainly by coating, but the process of setting a coating on the coating surface is very cumbersome, and it is easy to increase the possibility of coating shedding. Specifically, the internal coating needs to be processed first, and the external coating can be processed only after the internal coating is dried, and then the external coating needs to be dried. If the internal coating is not dried, the adhesion of the external coating is poor and it is easy to fall off, resulting in more coatings and more time-consuming processing. The dried internal coating needs to be polished, otherwise the external coating is difficult to adhere and easy to fall off, and it is necessary to avoid long-term exposure of the internal coating to the outside world, and avoid external impurities such as oil and dust adhering to the surface of the internal coating, resulting in impurities between the external coating and the internal coating after coating, and reduced adhesion, which easily leads to the external coating falling off; of course, there are also processes for achieving enhancement effects by modifying PVC raw materials, but there are standards for the amount of modifiers used, and adding more types and quantities of modifiers will affect other properties. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an impact-resistant and high-temperature-resistant PVC film to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an impact-resistant and high-temperature resistant PVC film, comprising a substrate, a first side panel connected to the top of the substrate, a second side panel connected to the bottom of the substrate, and a second roughening layer is provided on both sides of the top and the bottom of the first side panel and the second side panel, and a first roughening layer is provided on both sides of the top and the bottom of the substrate.

[0007] By adopting the above technical scheme, the original PVC film is divided into three parts, namely, a substrate, a first side panel and a second side panel. The three parts can be modified by different schemes to increase different properties, such as high temperature resistance, impact resistance and wear resistance. Then, the substrate, the first side panel and the second side panel are fixed together by adhesive, so that multiple properties of the PVC film are enhanced. At the same time, the bonding area and adhesion are increased by the first roughening layer and the second roughening layer, the grooves on the substrate and the protrusions on the first side panel and the second side panel, so as to increase the bonding strength and effectively reduce the phenomenon of separation and falling of the plate. The parts where the bonding strength is increased are mainly the four edges of the PVC film. First, the phenomenon of separation of the PVC film caused by cracking of the corners is reduced. Second, if the PVC film is a transparent material, the middle area is not roughened to avoid a significant impact on the light transmittance.

[0008] Furthermore, the substrate is made by modifying PVC plastic by adding a high temperature resistant modifier and an impact resistant modifier.

[0009] By adopting the above technical solution, the substrate is modified and strengthened by adding a high temperature resistant modifier and an impact resistant modifier, thereby increasing the high temperature resistance and impact resistance of the PVC film.

[0010] Furthermore, the first side panel and the second side panel are both made of PVC plastic after being modified by adding an impact modifier and a wear-resistant agent.

[0011] By adopting the above technical solution, the first side plate and the second side plate are modified and increased by adding an impact modifier and a wear resistant agent, thereby increasing the wear resistance and impact resistance of the PVC film.

[0012] Furthermore, grooves are provided on both sides of the top and both sides of the bottom of the base plate, and protrusions are provided on both sides of the bottom of the first side plate and both sides of the top of the second side plate.

[0013] By adopting the above technical solution, the bonding area and adhesion are increased by the first roughening layer and the second roughening layer, the grooves on the substrate and the protrusions on the first side panel and the second side panel, thereby increasing the bonding strength to effectively reduce the phenomenon of separation and falling of the panels. The parts where the bonding strength is increased are mainly the four edges of the PVC film. First, the phenomenon of separation of the PVC film due to cracking of the edges and corners is reduced. Second, if the PVC film is made of transparent material, the middle area is not roughened to avoid a significant impact on the light transmittance.

[0014] Furthermore, the protrusions on both sides of the bottom of the first side plate are embedded in the grooves on both sides of the top of the base plate, and the protrusions on both sides of the top of the second side plate are embedded in the grooves on both sides of the bottom of the base plate.

[0015] By adopting the above technical solution, the bonding area is increased by the grooves on the substrate and the protrusions on the first side panel and the second side panel, and the phenomenon of PVC film separation caused by cracking of corners is reduced, thereby increasing the bonding strength to effectively reduce the phenomenon of plate separation and falling off.

[0016] Furthermore, the top of the first side plate and the bottom of the second side plate are both coated with a hydrophobic layer.

[0017] By adopting the above technical solution, a hydrophobic layer can be directly coated on the surface of the first side plate and the second side plate to achieve a waterproof effect, and the second roughening layer can also increase the adhesion of the hydrophobic layer.

[0018] Furthermore, two third roughening layers are respectively arranged between the first side plate and the second side plate and the two hydrophobic layers.

[0019] By adopting the above technical solution, if it is necessary to further improve the adhesion of the hydrophobic layer, roughening can be performed in the areas of the first side panel and the second side panel where the second roughening layer is not provided, thereby forming a third roughening layer. It should be noted that the roughening cannot be too deep. As shown in the figure, it should be less than the depth of the second roughening layer to avoid the third roughening layer being too deep and having a greater impact on the transmittance. If the PVC film is not transparent PVC, there is no need to worry.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model divides an original piece of PVC film into three parts, namely the substrate, the first side plate, the second side plate, the first roughening layer and the second roughening layer, through the arrangement of the substrate, the first side plate, the second side plate, the three parts can be modified in different ways to increase different properties, such as high temperature resistance, impact resistance and wear resistance, and then the substrate, the first side plate and the second side plate are fixed together by an adhesive, so that multiple properties of the PVC film are enhanced, and at the same time, the bonding area and adhesion are increased by the first roughening layer and the second roughening layer, as well as the grooves on the substrate and the protrusions on the first side plate and the second side plate, so that Increase the bonding strength to effectively reduce the phenomenon of sheet separation and falling off. The areas where the bonding strength is increased are mainly the four sides of the PVC film. First, it can reduce the phenomenon of PVC film separation caused by cracking at the corners. Second, if the PVC film is a transparent material, the middle area is not roughened to avoid a significant impact on the light transmittance. Use bonding to fix multiple modified PVC films into a whole. Only a layer of coating needs to be applied on the surface. The operation is less difficult and the yield rate is high. In addition, since multiple modified PVC films are modified and enhanced in different ways, they can meet the use requirements without having too much negative impact on the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified view of the structure at A;

[0024] Figure 3 For the utility model Figure 1 A magnified view of the structure at B in FIG.

[0025] Figure 4 This is a schematic diagram of the explosion structure of the first side plate of the utility model;

[0026] Figure 5 This is a schematic diagram of the explosion structure of the second side plate of the utility model.

[0027] In the figure: 1, substrate; 2, first side plate; 3, second side plate; 4, hydrophobic layer; 5, first roughening layer; 6, second roughening layer; 7, third roughening layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] Embodiment 1:

[0031] An impact-resistant and high-temperature-resistant PVC film, such as Figure 1-Figure 5 As shown, it includes a substrate 1, which is made of PVC plastic modified by adding a high-temperature modifier and an impact modifier to increase the high-temperature resistance and impact resistance of the PVC film; the top of the substrate 1 is connected to a first side plate 2, and the bottom of the substrate 1 is connected to a second side plate 3, and the first side plate 2 and the second side plate 3 are both made of PVC plastic modified by adding an impact modifier and a wear-resistant agent to increase the wear resistance and impact resistance of the PVC film; the first side plate 2 and the second side plate 3 are both provided with a second roughening layer 6 on both sides of the top and bottom, and the first side plate 2 Both sides of the bottom and both sides of the top of the second side panel 3 are provided with protrusions, both sides of the top and bottom of the substrate 1 are provided with a first roughening layer 5, both sides of the top and bottom of the substrate 1 are provided with grooves, the protrusions on both sides of the bottom of the first side panel 2 are embedded in the grooves on both sides of the top of the substrate 1, and the protrusions on both sides of the top of the second side panel 3 are embedded in the grooves on both sides of the bottom of the substrate 1. First, the phenomenon of PVC film separation caused by cracking of corners is reduced, and second, if the PVC film is a transparent material, the middle area is not roughened to avoid a significant impact on the light transmittance.

[0032] See also Figure 1-Figure 5 In the above embodiment, the top of the first side panel 2 and the bottom of the second side panel 3 are coated with a hydrophobic layer 4. The hydrophobic layer 4 can be directly coated on the surface of the first side panel 2 and the second side panel 3 to achieve a waterproof effect. At the same time, the second roughening layer 6 can also increase the adhesion of the hydrophobic layer 4.

[0033] Embodiment 2:

[0034] On the basis of the above-mentioned embodiment one, although by setting the substrate 1, the first side panel 2, the second side panel 3, the first roughening layer 5 and the second roughening layer 6, multiple modified PVC films can be fixed into a whole by bonding, it is only necessary to apply a layer of coating on the surface, the operation difficulty is low and the yield rate is high, and because the multiple modified PVC films are modified and enhanced in different ways, it not only meets the use requirements but also does not have too much negative impact on the structural strength; but the adhesion of the middle area of ​​the hydrophobic layer 4 is low; now by setting the third roughening layer 7, the adhesion between the middle area of ​​the hydrophobic layer 4 and the first side panel 2 and the second side panel 3 can be improved.

[0035] See also Figure 1-Figure 5 In the above embodiment, two third roughening layers 7 are respectively arranged between the first side plate 2 and the second side plate 3 and the two hydrophobic layers 4. Roughening can be performed in the areas of the first side plate 2 and the second side plate 3 where the second roughening layer 6 is not arranged, so as to further improve the adhesion of the hydrophobic layer 4.

[0036] The implementation principle of the utility model is as follows: first, a piece of PVC film is divided into three parts, namely a substrate 1, a first side panel 2 and a second side panel 3. The three parts can be modified in different ways to increase different properties, such as high temperature resistance, impact resistance and wear resistance. Then, the substrate 1, the first side panel 2 and the second side panel 3 are fixed together by an adhesive, so that multiple properties of the PVC film are enhanced. At the same time, the bonding area and adhesion are increased by the first roughening layer 5 and the second roughening layer 6, as well as the grooves on the substrate 1 and the protrusions on the first side panel 2 and the second side panel 3, so as to increase the bonding strength and effectively reduce the phenomenon of separation and falling of the panels. The parts where the bonding strength is increased are mainly the four edges of the PVC film. First, the cracking of the corners is reduced. The phenomenon of PVC film separation occurs. Secondly, if the PVC film is made of transparent material, the middle area is not roughened to avoid a significant impact on the transmittance. After that, the hydrophobic layer 4 can be directly coated on the surface of the first side panel 2 and the second side panel 3 to achieve a waterproof effect. At the same time, the second roughened layer 6 can also increase the adhesion of the hydrophobic layer 4. Of course, if it is necessary to further improve the adhesion of the hydrophobic layer 4, the area of ​​the first side panel 2 and the second side panel 3 where the second roughened layer 6 is not provided can be roughened to form a third roughened layer 7. It should be noted that the roughening should not be too deep. As shown in the figure, it should be less than the depth of the second roughened layer 6 to avoid the third roughened layer 7 being too deep and having a greater impact on the transmittance. If the PVC film is not transparent PVC, there is no need to worry.

[0037] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An impact-resistant and high-temperature-resistant PVC film, comprising a substrate (1), characterized in that: The top of the base plate (1) is connected to a first side plate (2), the bottom of the base plate (1) is connected to a second side plate (3), and both sides of the top and bottom of the first side plate (2) and the second side plate (3) are provided with a second roughening layer (6), and both sides of the top and bottom of the base plate (1) are provided with a first roughening layer (5).

2. The impact-resistant and high-temperature-resistant PVC film according to claim 1, characterized in that: The substrate (1) is made of PVC plastic after being modified by adding a high temperature resistant modifier and an impact resistant modifier.

3. The impact-resistant and high-temperature-resistant PVC film according to claim 1, characterized in that: The first side plate (2) and the second side plate (3) are both made of PVC plastic after being modified by adding an impact-resistant modifier and a wear-resistant agent.

4. The impact-resistant and high-temperature-resistant PVC film according to claim 3, characterized in that: The base plate (1) is provided with grooves on both sides of the top and both sides of the bottom, and the first side plate (2) is provided with protrusions on both sides of the bottom and the second side plate (3) are provided with protrusions on both sides of the top.

5. The impact-resistant and high-temperature-resistant PVC film according to claim 4, characterized in that: The protrusions on both sides of the bottom of the first side plate (2) are embedded in the grooves on both sides of the top of the base plate (1), and the protrusions on both sides of the top of the second side plate (3) are embedded in the grooves on both sides of the bottom of the base plate (1).

6. The impact-resistant and high-temperature-resistant PVC film according to claim 1, characterized in that: The top of the first side plate (2) and the bottom of the second side plate (3) are both coated with a hydrophobic layer (4).

7. The impact-resistant and high-temperature-resistant PVC film according to claim 6, characterized in that: Two third roughening layers (7) are respectively arranged between the first side plate (2) and the second side plate (3) and the two hydrophobic layers (4).

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