Waterproof scratch-resistant plastic

Abstract

The utility model discloses a waterproof scratch-resistant plastic, which is applied to a cable protective sleeve and comprises a TPU (thermoplastic polyurethane) plastic matrix layer, the glass fiber layer is arranged on the upper surface of the TPU plastic matrix layer; the aluminum plastic film layer is arranged on the upper surface of the glass fiber layer; the silicon carbide layer is arranged on the outer surface of the aluminum plastic film layer; wherein a plurality of bulges are arranged on the outer surface of the silicon carbide layer, the height of the bulges is 0.1-0.5 mu m, and the distance between every two adjacent bulges is 0.5-2 mu m; the water drop contact angle of the plastic is larger than or equal to 150 degrees, and the Mohs hardness of the plastic is 8-9. Compared with the prior art, the plastic cement provided by the utility model has excellent waterproof performance and scratch resistance, and the service life, the safety and the reliability of the cable can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastics, in particular to a waterproof and scratch-resistant plastic. Background Art

[0002] Cable protection sleeves are important protective components for cables, and their performance directly affects the service life and safety of the cables. Currently, cable protection sleeves are often made of plastic materials, but existing plastic cable protection sleeves generally have poor waterproof performance and poor scratch resistance.

[0003] On the one hand, poor waterproof performance of cable protective covers can allow moisture to enter the cable, causing the cable insulation performance to deteriorate, accelerating cable aging, and in severe cases even causing safety accidents such as short circuits and leakage. The waterproof performance of cable protective covers is particularly important, especially in humid environments or rainy and snowy weather.

[0004] On the other hand, during the cable laying process, it will inevitably be worn and scratched by foreign objects such as sand, dust, etc. The existing plastic cable protective cover has poor scratch resistance and is easily scratched, cracked or even damaged under the action of wear and scratching, which greatly reduces the protective effect of the cable.

[0005] Therefore, there is an urgent need to develop a new cable protective cover plastic material with excellent waterproof and scratch resistance to extend the service life of the cable and improve the safety performance of the cable. Utility Model Content

[0006] The purpose of the utility model is to provide a waterproof and scratch-resistant plastic to address the deficiencies of the existing technology, which has excellent waterproof and scratch-resistant properties and can significantly improve the service life and safety and reliability of cables.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A waterproof and scratch-resistant plastic used in cable protective covers, comprising:

[0009] TPU plastic base layer;

[0010] A glass fiber layer is provided on the upper surface of the TPU plastic base layer;

[0011] an aluminum-plastic film layer, disposed on the upper surface of the glass fiber layer;

[0012] a silicon carbide layer, disposed on the outer surface of the aluminum-plastic film layer;

[0013] The outer surface of the silicon carbide layer is provided with a plurality of protrusions with a height of 0.1-0.5 μm and an adjacent spacing of 0.5-2 μm; the water drop contact angle of the plastic is ≥150°, and the Mohs hardness of the plastic is 8-9.

[0014] Preferably, the surface of the TPU plastic base layer is provided with a grid-like groove with a depth of 0.1-1 mm, a width of 0.1-0.3 mm, and a spacing of 1-3 mm. This grid-like groove structure can increase the specific surface area of ​​the plastic surface and improve its bonding strength with other layers.

[0015] Preferably, the contact surfaces between the layers are subjected to plasma treatment to form a concave-convex contact surface.

[0016] Preferably, a fluorocarbon wax layer is further provided between the aluminum-plastic film layer and the silicon carbide layer.

[0017] Preferably, a carbon fiber layer is further provided between the TPU plastic matrix layer and the glass fiber layer.

[0018] Preferably, a graphene heat-conducting layer is further provided between the TPU plastic base layer and the glass fiber layer.

[0019] Preferably, the layers are bonded together by thermal compression or magnetron sputtering to form an integrated structure.

[0020] Preferably, the overall thickness of the plastic is 3 to 10 mm.

[0021] Preferably, the tensile strength of the plastic is 190-200 MPa.

[0022] Compared to the prior art, the present invention has the following beneficial effects: A waterproof and scratch-resistant plastic material, applied to a cable protective sheath, comprises: a TPU plastic base layer; a glass fiber layer disposed on the upper surface of the TPU plastic base layer; an aluminum-plastic film layer disposed on the upper surface of the glass fiber layer; and a silicon carbide layer disposed on the outer surface of the aluminum-plastic film layer; wherein the outer surface of the silicon carbide layer is provided with a plurality of protrusions with a height of 0.1-0.5 μm and a spacing of 0.5-2 μm between adjacent protrusions; the plastic material has a water droplet contact angle of ≥150° and a Mohs hardness of 8-9. The present invention, applied to a cable protective sheath, utilizes a multilayer composite structure of a TPU plastic base layer, a glass fiber layer, an aluminum-plastic film layer, and a silicon carbide layer, and optimizes the design of each layer structure to achieve excellent waterproof and scratch-resistant properties, significantly improving the service life and safety and reliability of the cable. Among them, TPU is used as the plastic base material layer. TPU is a material with good waterproofness and good elasticity, which can ensure the overall stability of the plastic. A glass fiber layer is set on the TPU plastic base layer. Glass fiber has excellent mechanical properties and can improve the tensile strength and impact resistance of the plastic, making the plastic less likely to be damaged by external forces. At the same time, the glass fiber layer also plays a role in further blocking moisture, further improving the waterproof performance of the plastic. An aluminum-plastic film layer is set on the glass fiber layer. The aluminum-plastic film is composed of aluminum foil and plastic film, and has excellent water-blocking performance and airtightness. Significantly improve the water-proof properties of plastics; a silicon carbide layer is provided on the outer surface of the aluminum-plastic film layer, and protrusions with a height of 0.1-0.5μm and an adjacent spacing of 0.5-2μm are provided on the surface of the silicon carbide layer, thereby obtaining a water droplet contact angle of more than 150°, exhibiting super-hydrophobic properties; water droplets falling on such a hydrophobic surface will roll off quickly, carrying away surface dust and stains. At the same time, the hardness of silicon carbide is as high as 8-9 Mohs hardness, so the silicon carbide layer provides the plastic with a self-cleaning, wear-resistant super-hydrophobic surface, significantly improving the plastic's waterproof and scratch-resistant properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the plastic in Example 1 of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of the plastic in Example 2 of the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of the plastic in Example 3 of the present utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the plastic in Example 4 of the present utility model.

[0027] In the figure: 1. TPU plastic base layer; 11. groove; 2. glass fiber layer; 3. aluminum-plastic film layer; 4. silicon carbide layer; 41. protrusion; 5. fluorocarbon wax layer; 6. carbon fiber layer; 7. graphene thermal conductive layer. DETAILED DESCRIPTION

[0028] In order to make the technical solutions and advantages of the present invention clearer, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and the accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides a waterproof and scratch-resistant plastic, which is applied to a cable protective cover, including:

[0031] TPU plastic base layer 1;

[0032] The glass fiber layer 2 is provided on the upper surface of the TPU plastic base layer 1;

[0033] The aluminum-plastic film layer 3 is arranged on the upper surface of the glass fiber layer 2;

[0034] The silicon carbide layer 4 is provided on the outer surface of the aluminum-plastic film layer 3;

[0035] The outer surface of the silicon carbide layer 4 is provided with a plurality of protrusions 41 with a height of 0.1-0.5 μm and a spacing of 0.5-2 μm between adjacent protrusions 41; the water drop contact angle of the plastic is ≥150°, the Mohs hardness of the plastic is 8-9, and the tensile strength of the plastic is 190-200 MPa.

[0036] Among them, the waterproof and scratch-resistant plastic used in the cable protective cover provided by the utility model has excellent waterproofness, scratch resistance and mechanical properties through the synergistic effect of the multi-layer composite structure, which can comprehensively improve the service life and safety performance of the cable.

[0037] Among them, TPU is used as the plastic base material layer. TPU is a material with good waterproofness and good elasticity, which can ensure the overall stability of the plastic. A glass fiber layer 2 is arranged on the TPU plastic base layer 1. The glass fiber has excellent mechanical properties and can improve the tensile strength and impact resistance of the plastic, making the plastic less likely to be damaged by external forces. At the same time, the glass fiber layer 2 also plays a role in further blocking moisture, further improving the waterproof performance of the plastic. An aluminum-plastic film layer 3 is arranged on the glass fiber layer 2. The aluminum-plastic film is composed of aluminum foil and plastic film, and has excellent water-blocking performance and air tightness. The silicon carbide layer 4 is provided on the outer surface of the aluminum-plastic film layer 3, and protrusions 41 with a height of 0.1-0.5 μm and a spacing of 0.5-2 μm are provided on the surface of the silicon carbide layer 4, thereby achieving a water droplet contact angle of over 150°, exhibiting super-hydrophobic properties. Water droplets falling on such a hydrophobic surface will roll off quickly, carrying away surface dust and stains. At the same time, the hardness of silicon carbide is as high as 8-9 on the Mohs hardness scale. Therefore, the silicon carbide layer 4 provides the plastic with a self-cleaning, wear-resistant, super-hydrophobic surface, significantly improving the plastic's waterproof and scratch-resistant properties.

[0038] In this embodiment, the layers are bonded together by thermal compression or magnetron sputtering to form an integrated structure.

[0039] In this embodiment, the surface of the TPU plastic base layer 1 is provided with grid-like grooves 11 with a depth of 0.1-1 mm, a width of 0.1-0.3 mm, and a spacing of 1-3 mm; this grid-like groove 11 structure can increase the specific surface area of ​​the plastic surface and improve its bonding strength with other layers.

[0040] In this embodiment, the contact surfaces between the layers are plasma treated to form a concave and convex contact surface. While increasing the contact area, the concave and convex structure can also act as a bite lock, thereby greatly improving the bonding force between the layers and making the overall plastic structure more stable.

[0041] In this embodiment, the overall thickness of the plastic is 3 to 10 mm, which can meet the requirements of cable protection while being not too bulky and convenient for laying.

[0042] Example 2

[0043] like Figure 2 As shown, the difference from Example 1 is that a fluorocarbon wax layer 5 is further provided between the aluminum-plastic film layer 3 and the silicon carbide layer 4. Fluorocarbon wax has the properties of being hydrophobic, oleophobic, and corrosion-resistant, and can further enhance the overall waterproof performance of the plastic.

[0044] The other structures are the same as those in Example 1 and will not be described again here.

[0045] Example 3

[0046] like Figure 3 As shown, the difference from Example 1 is that a carbon fiber layer 6 is further provided between the TPU plastic matrix layer 1 and the glass fiber layer 2. Carbon fiber has excellent mechanical properties, further improving the tensile strength and toughness of the plastic.

[0047] The other structures are the same as those in Example 1 and will not be described again here.

[0048] Example 4

[0049] like Figure 4 As shown, unlike Example 1, a graphene thermal conductive layer 7 is further provided between the TPU plastic matrix layer 1 and the glass fiber layer 2 of this embodiment; by providing the graphene thermal conductive layer 7, the heat inside the cable can be quickly conducted to the external environment, thereby improving the thermal conductivity of the cable. Among them, the thermal conductivity of the graphene thermal conductive layer 7 in this embodiment is 2000-2500W / m·K. Commonly used thermal conductive materials such as copper have a thermal conductivity of approximately 400W / m·K, while the thermal conductivity of silver is approximately 430W / m·K. Therefore, the thermal conductivity of the graphene used in this application is significantly better than these traditional metal thermal conductive materials, and can quickly conduct heat from the inside of the plastic to prevent the plastic from aging due to excessive temperature.

[0050] The other structures are the same as those in Example 1 and will not be described again here.

[0051] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. A waterproof and scratch-resistant plastic used for cable protection sleeves, characterized in that: include: TPU plastic base layer; A glass fiber layer is provided on the upper surface of the TPU plastic base layer; an aluminum-plastic film layer, disposed on the upper surface of the glass fiber layer; a silicon carbide layer, disposed on the outer surface of the aluminum-plastic film layer; The outer surface of the silicon carbide layer is provided with a plurality of protrusions with a height of 0.1-0.5 μm and an adjacent spacing of 0.5-2 μm; the water drop contact angle of the plastic is ≥150°, and the Mohs hardness of the plastic is 8-9.

2. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: The surface of the TPU plastic base layer is provided with grid-like grooves with a depth of 0.1-1 mm, a width of the grooves of 0.1-0.3 mm, and a spacing of 1-3 mm.

3. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: The contact surfaces between the layers are plasma treated to form a bumpy contact surface.

4. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: A fluorocarbon wax layer is further provided between the aluminum-plastic film layer and the silicon carbide layer.

5. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: A carbon fiber layer is further provided between the TPU plastic matrix layer and the glass fiber layer.

6. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: A graphene heat-conducting layer is further provided between the TPU plastic matrix layer and the glass fiber layer.

7. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: The layers are bonded together by thermal compression or magnetron sputtering to form an integrated structure.

8. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: The overall thickness of the plastic is 3 to 10 mm.

9. The waterproof and scratch-resistant plastic according to claim 1, characterized in that: The tensile strength of the plastic is 190-200 MPa.

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