Environment-friendly signal data power line structure and preparation method thereof

Abstract

The invention provides an environment-friendly signal data power line structure and a preparation method thereof, the environment-friendly signal data power line structure comprises a wire core, an external new material layer is wrapped outside the wire core, and a recycled material layer is arranged between the wire core and the external new material layer. And an internal new material layer is also arranged between the recycled material layer and the wire core. According to the preparation method, the internal new material layer and the external new material layer are made of brand new materials, the recycled material layer is made of recycled materials, and the two materials are subjected to multi-layer co-extrusion one-time forming together. The protection layer of the wire core is at least arranged to be the recycled material layer and the external new material layer, the external new material layer is good in physical performance and can well protect an external wire skin structure, so that the service life is prolonged, the internal new material layer is arranged at the innermost part, the protection layer is prevented from being easily softened, and the service life is prolonged. And the service lives of signals, data and power lines are further prolonged.

Description

Technical Field

[0001] This invention belongs to the field of power cable technology, and more specifically, relates to an environmentally friendly signal data power cable structure and its preparation method. Background Technology

[0002] As global climate gradually warms, various countries and regions have introduced relevant measures and policies to curb this behavior, and have provided corresponding preferential policies for enterprises that comply with energy conservation and emission reduction.

[0003] For companies that manufacture signal cables, data cables, and power cables for electronic devices, improving the structure or production process of these cables while ensuring functional requirements and meeting energy conservation and emission reduction requirements is a pressing technical issue that needs to be addressed. This will allow them to benefit from the policy dividends of various countries and regions during market sales, thereby reducing production costs and increasing profits.

[0004] With increasing global environmental awareness, the use of recycled materials in the wire and cable manufacturing industry has become an important trend. Currently, there are two main methods for manufacturing environmentally friendly cables: one is to process recycled plastics and mix them with virgin substrates in a certain proportion as fillers, and then perform single-layer extrusion molding; the other is to first extrude the inner insulation layer, and then separately cover it with a recycled material sheath; and the third is to use biodegradable materials.

[0005] However, all of the aforementioned existing technologies have significant drawbacks. For the first method, blending filler, the addition of recycled materials significantly degrades the mechanical strength, electrical insulation properties, and resistance to environmental stress cracking of the blended material. Therefore, the addition ratio is usually strictly limited (generally below 20%), resulting in limited environmental benefits for the cables. For the second method, staged extrusion, although the performance of the inner layer can be guaranteed, the production process is cumbersome and energy-intensive. Furthermore, the different processing sequences between the inner and outer layers may lead to insufficient bonding strength, posing a risk of interfacial delamination. The third method, using biodegradable materials, suffers from insufficient weather resistance, resulting in a significantly shortened service life.

[0006] Therefore, there is an urgent need in this field for a new type of environmentally friendly cable structure and its preparation method that can significantly increase the proportion of recycled materials used while ensuring the key performance of cables and achieve efficient and stable production. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides an environmentally friendly signal data power line structure and its preparation method. By incorporating a recyclable material layer in the protective layer of the wire core, it meets the requirements for energy conservation and emission reduction, enabling it to benefit from the policy dividends of various countries and regions during market sales. This, in turn, reduces enterprise production costs and increases enterprise profits, effectively solving the aforementioned technical problems.

[0008] The purpose and effectiveness of this invention—an environmentally friendly signal data power line structure and its preparation method—are achieved through the following specific technical means:

[0009] An environmentally friendly signal data power cable structure includes a wire core, an outer new material layer wrapped around the wire core, and a recycled material layer disposed between the wire core and the outer new material layer.

[0010] An internal new material layer is also provided between the recycled material layer and the wire core.

[0011] The thickness of the recycled material layer is 30% to 70% of the thickness of the protective layer, and the protective layer includes a recycled material layer, an inner new material layer, and an outer new material layer.

[0012] The inner and outer new material layers have the same thickness.

[0013] A method for preparing an environmentally friendly signal data power line structure, wherein the method comprises: using entirely new materials for the inner and outer new material layers, while using recycled materials for the recycled material layer, and the two materials are co-extruded together in one step.

[0014] The co-extrusion molding temperature is 150-180℃, and the speed is 40-300m / min.

[0015] The present invention has at least the following beneficial effects:

[0016] 1. Achieving a balance between high performance and high environmental friendliness: Through an innovative three-layer structure design of "inner virgin material - recycled material - outer virgin material," the recycled material layer is placed between the inner and outer layers of virgin material. This structure allows the recycled material layer to avoid directly bearing the main electrical insulation or external protection functions, thereby increasing the application ratio of recycled materials to 30%-70% of the protective layer thickness while ensuring that the overall mechanical performance, insulation performance, and weather resistance of the cable do not decline, resulting in significant environmental benefits.

[0017] 2. Ensures excellent interlayer bonding and structural stability: The inner and outer layers of brand-new materials and the middle layer of recycled materials are formed in one step using synchronous multi-layer co-extrusion technology. This method fuses the three layers of melt into a dense whole under high temperature and high pressure, eliminating interface defects that may occur during staged extrusion. The interlayer bonding is strong, avoiding the risk of delamination during use, and ensuring long-term stable and reliable product structure.

[0018] 3. Optimized production process and reduced costs: The single-step co-extrusion molding method simplifies the original multi-step process into a single step, greatly improving production efficiency and reducing energy consumption and production costs. Simultaneously, the co-extrusion temperature of 150-180℃ and the production speed of 40-300m / min provided by this invention offer a wide and feasible processing window for commonly used polyolefin materials and their recycled materials, exhibiting strong process adaptability and facilitating large-scale production.

[0019] 4. Balanced and reasonable structural design: The thickness of the internal new material layer and the external new material layer are further limited to be consistent, so that the cross-section of the cable is symmetrical. This is conducive to the uniform distribution of thermal stress during extrusion, and prevents warping or deformation caused by structural asymmetry when the cable is bent, thereby improving the process quality and service life of the product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one of the structures in Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of another structure in Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of one of the structures in Embodiment 2 of the present invention;

[0023] Figure 4 This is a schematic diagram of another structure in Embodiment 2 of the present invention.

[0024] Attached diagram labels: 1-core wire, 2-inner new material layer, 3-recycled material layer, 4-outer new material layer. Detailed Implementation

[0025] The embodiments of the present invention will be described in further detail below through examples. These examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0026] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Example 1:

[0029] This invention provides an environmentally friendly signal data power line structure and its preparation method, as shown in the attached figure. Figure 1-2 As shown, an environmentally friendly signal data power line structure, such as Figure 1 , 2 As shown, it includes a wire core 1, which is wrapped with a protective layer. The protective layer includes a recycled material layer 3, and the recycled material layer 3 is wrapped with an outer new material layer 4.

[0030] This invention comprises at least a recycled material layer 3 and an outer new material layer 4 as the protective layer for the core 1. The recycled material layer 3 is made of recycled materials, while the new material layer 4 is made of virgin materials. The physical properties of the recycled material used in the recycled material layer 3 are lower than those of the virgin material. Therefore, the recycled material layer 3 has lower performance in terms of wear resistance, corrosion resistance, and high-temperature resistance than the outer new material layer 4. The outer new material layer 4, due to its superior wear resistance, corrosion resistance, and high-temperature resistance, is placed on the outermost layer to effectively protect the internal core 1, thereby improving the service life of the signal, data, and power line structure. Although the recycled material layer 3 has poor physical properties and cannot be used as the outermost layer, its inclusion ensures that the entire signal, data, and power line structure meets energy conservation and emission reduction requirements. This allows the signal, data, and power lines of this invention to benefit from policy incentives in various countries and regions during market sales, thereby reducing production costs and increasing profits for enterprises.

[0031] The thickness of the recycled material layer 3 is 30% to 50% of the thickness of the protective layer, so that the performance of the protective layer can reach the optimal state while the prepared environmentally friendly signal data power line meets the requirements of energy conservation and emission reduction.

[0032] Example 2:

[0033] This invention provides an environmentally friendly signal data power line structure and its preparation method, as shown in the attached figure. Figure 3-4 As shown, an environmentally friendly signal data power line structure, such as Figure 3 , 4As shown, the device includes a wire core 1, which is surrounded by a protective layer. The protective layer consists of an inner new material layer 2, a recycled material layer 3, and an outer new material layer 4, arranged from the inside out. This embodiment differs from Embodiment 1 in that it includes an inner new material layer 2. This inner new material layer 2 is included because signal, data, and power lines generate a significant amount of heat during high-power operation (such as fast charging on a mobile phone). If this heat directly acts on the recycled material layer 3, it will soften, affecting the operation of the signal, data, and power lines. Therefore, an inner new material layer 2 is provided. The inner new material layer 2 has better high-temperature resistance than the recycled material layer 3, and the large amount of heat generated by the wire core 1 during high-power operation will not soften the protective layer when it acts on it.

[0034] The thickness of the recycled material layer 3 is 30% to 70% of the thickness of the protective layer, and the thickness of the inner new material layer 2 and the outer new material layer 4 are the same, so that the performance of the protective layer can reach the optimal state while the prepared environmentally friendly signal data power line meets the requirements of energy conservation and emission reduction.

[0035] The reason why this invention adopts the structure of the above embodiments one and two is that the environmentally friendly recycled material constituting the recycled material layer 3 has been used and recycled countless times, and its molecular structure is no longer stable. If it is mixed with the new material constituting the new material layer, it will weaken the structure of the new material. Therefore, this invention adopts this structural method so that the new material layer and the recycled material layer 3 are clearly separated without changing the molecular structure of each layer. Using this new structural method, it can meet environmental protection regulations and has the stability and weather resistance provided by the new material layer, thus meeting the customer's requirements for environmentally friendly and weather-resistant products.

[0036] This invention also claims protection for a method for preparing an environmentally friendly signal data power line structure. The environmentally friendly signal data power line structure is prepared using multi-layer co-extrusion technology. During the preparation process, the inner and outer new material layers are formed by extruding entirely new materials, while the recycled material layer is formed by extruding fully recycled materials. Currently, some signal data power line structures also use recycled materials to reduce production costs. However, currently, recycled materials are mixed with different new materials, melted, and then extruded to form different protective layers. While this can also reduce production costs, because each protective layer is prepared from a mixture of recycled and different new materials, the performance of the extruded mixed material protective layer is lower than that of a protective layer made entirely of new materials. The wear resistance, corrosion resistance, and high-temperature resistance of the mixed material protective layer are significantly lower than those of the new material protective layer, thus reducing the service life of the mixed material protective layer.

[0037] Compared with existing technologies, this invention sets the protective layer of the wire core to at least a recycled material layer and an outer new material layer. The outer new material layer has better physical properties, such as wear resistance, corrosion resistance, and high temperature resistance, which can effectively protect the internal wire core structure, thereby improving the service life of the signal, data, and power lines and ensuring that the signal, data, and power lines meet usage requirements. The recycled material layer, due to its poor physical properties, cannot be used as the outermost layer. However, by including the recycled material layer, the entire data and power line structure meets the requirements of energy conservation and emission reduction, thus facilitating the enjoyment of policy benefits in various countries and regions during market sales, thereby reducing enterprise production costs and increasing enterprise profits. The innermost new material layer can reduce the impact of the large amount of heat generated during high-power energization of the data and power lines on the protective layer, preventing the protective layer from softening easily, and further improving the service life of the signal, data, and power lines.

[0038] Any aspects of this invention not described in detail are well-known to those skilled in the art.

[0039] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An environmentally friendly signal data power cable structure, comprising a wire core (1), and an outer new material layer (4) wrapped around the wire core (1), characterized in that: A recycled material layer (3) is provided between the core (1) and the outer new material layer (4).

2. The environmental protection signal data power line structure according to claim 1, characterized in that: An internal new material layer (2) is also provided between the recycled material layer (3) and the wire core (1).

3. The environmental protection signal data power line structure according to claim 2, characterized in that: The thickness of the recycled material layer (3) is 30% to 70% of the thickness of the protective layer. The protective layer includes the recycled material layer (3), the inner new material layer (2), and the outer new material layer (4).

4. The environmental protection signal data power line structure according to claim 2, characterized in that: The inner new material layer (2) and the outer new material layer (4) have the same thickness.

5. The method for preparing the environmentally friendly signal data power line structure according to any one of claims 1-4, characterized in that: The method is as follows: the inner new material layer (2) and the outer new material layer (4) are made of brand new materials, while the recycled material layer (3) is made of recycled materials. The two materials are co-extruded together in one step.

6. The method for preparing the environmental protection signal data power line structure according to claim 5, characterized in that: The co-extrusion molding temperature is 150-180℃, and the speed is 40-300m / min.

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