High strength thermoplastic pipe and method of assembling same

Abstract

The application provides a high-strength thermoplastic pipeline and an assembling method, and the high-strength thermoplastic pipeline and the assembling method comprise the following steps: (1) winding a reinforcing belt: winding a glass fiber reinforcing belt on the surface of a base pipe; (2) applying static electricity: applying opposite charges on carbon nanotubes and molten working surface one and molten working surface two respectively; (3) releasing the carbon nanotubes; and (4) forced assembling: the working surface one and the working surface two in a molten state are bonded under the action of mechanical pressure. In the combining process, due to the anchoring effect of the carbon nanotubes on the glass fiber reinforcing belt, the slippage phenomenon of the glass fiber under the action of high pressure is obviously avoided, and the pressure strength of the ordinary pipe can be increased from 20 MPa to 80 MPa.

Description

Technical Field

[0001] This invention relates to the field of pipeline technology, and in particular to a high-strength thermoplastic pipeline and its assembly method. Background Technology

[0002] During urban infrastructure construction, numerous pipelines are often laid to transport water, gas, electricity, and other utilities to meet the needs of the public. These pipelines are often buried underground for extended periods and require high strength. To improve their pressure resistance, fiberglass braided strips (such as...) are added to the pipe wall of the base pipe. Figure 1 As shown), because the surface of the glass fiber braided tape 1 is smooth, when local pressure occurs inside the base tube causing slight deformation of the tube wall, it can lead to glass fiber slippage, resulting in glass fiber dispersion (as shown). Figure 2 As shown in the figure, this exacerbates pipe wall deformation, leading to a decrease in pressure resistance. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: A high-strength thermoplastic assembly method includes the following steps: (1) Winding the reinforcing strip: A glass fiber reinforcing strip is wound on the surface of the base tube. During the winding process, two heating laser sources are used to irradiate the working surface one of the base tube and the working surface two of the glass fiber reinforcing strip, respectively, so that the polymer composite material of the working surface one of the base tube and the working surface two of the glass fiber reinforcing strip are in a molten state. The glass fiber reinforcing strip is wound on the surface of the base tube in a spiral winding manner, and the edges of the adjacent two winds of glass fiber reinforcing strip are joined together. (2) Applying static electricity: Apply opposite charges to the carbon nanotube and the molten working surface one and the molten working surface two respectively. Specifically, a metal plate one is set on the side of the working surface one and the working surface two to form a negative electrode, and the carbon nanotube is placed in the container and then connected to the metal plate two to form a positive electrode. (3) Release carbon nanotubes: Due to the mutual attraction of positive and negative charges, the carbon nanotubes are vertical, accelerate upward and invade the surfaces of working surface one and working surface two. By controlling the release time and release channel area of ​​the carbon nanotubes, the thickness of the carbon nanotubes on working surface one and working surface two can be controlled. (4) Apply shear force field to force assembly: The working surfaces 1 and 2 in the molten state generate a shear force field under mechanical pressure. Under the action of shear force, the carbon nanotubes on the working surfaces 1 and 2 invade each other, and the working surfaces 1 and 2 are bonded together to complete the assembly.

[0004] As a preferred embodiment, the glass fiber reinforcing tape is wound in one or more layers on the surface of the base tube.

[0005] As a preferred embodiment, the thickness of the carbon nanotube between working surface one and working surface two is 50-500 nanometers.

[0006] As a preferred embodiment, the glass fiber reinforced tape is 0.2-0.8 mm thick.

[0007] A high-strength thermoplastic pipe includes a base pipe with a glass fiber reinforcing tape wound around its surface. A carbon nanotube layer is provided between the base pipe and the glass fiber reinforcing tape at the interface, and the carbon nanotube layer anchors the base pipe and the glass fiber reinforcing tape together.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: During the bonding process of the molten working surfaces one and two, the anchoring effect of the carbon nanotubes on the glass fiber reinforcement is obvious, effectively avoiding the slippage phenomenon of glass fibers under high pressure, and increasing the pressure resistance of ordinary tubes from 20MPa to 80MPa.

[0009] The forced assembly process increases the anchoring force between the glass fiber reinforced tape and the base pipe, improves the overall performance of the pipeline, and thus increases the hydrostatic resistance of the finished pipeline, as well as its resistance to creep and water hammer. Attached Figure Description

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the existing technology structure; Figure 2 This is a schematic diagram of a slightly deformed base tube structure in existing technology; Figure 3 This is a schematic diagram of the wound reinforcing strip structure of the present invention; Figure 4 This is a schematic diagram of the electrostatic application structure of the present invention; Figure 5 This is a schematic diagram of the carbon nanotube structure of the present invention; Figure 6 This is a schematic diagram of the forced assembly structure of working surface one and working surface two of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the base tube of the present invention. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: A method for assembling a high-strength thermoplastic pipe includes the following steps: (1) Winding the reinforcing strip: A glass fiber reinforcing strip 2 is wound on the surface of the base tube 1. During the winding process, two heating laser sources are used to irradiate the working surface 3 of the base tube 1 and the working surface 4 of the glass fiber reinforcing strip 2 respectively, so that the polymer composite material of the working surface 3 of the base tube and the working surface 4 of the glass fiber reinforcing strip are in a molten state. The glass fiber reinforcing strip 2 is wound on the surface of the base tube 1 in a spiral winding manner, and the edges of the adjacent two winds of glass fiber reinforcing strip 2 are joined together. (2) Applying static electricity: Apply opposite charges to the carbon nanotube and the molten working surface 1 and the molten working surface 2 respectively. Specifically, metal plate 5 is set on the side of working surface 3 and working surface 2 to form a negative electrode, and carbon nanotube 6 is placed in container 7 and then connected to metal plate 2 to form a positive electrode. (3) Release carbon nanotubes: Due to the mutual attraction of positive and negative charges, carbon nanotubes 6 are vertical, accelerate upward and invade the surfaces of working surface 1 3 and working surface 2 4. By controlling the release time and release channel area of ​​carbon nanotubes 6, the thickness of carbon nanotubes 6 on working surface 1 1 and working surface 2 4 can be controlled. (4) Apply shear force field to force assembly: The working surfaces 1 and 4 in the molten state generate a shear force field under mechanical pressure. Under the action of shear force, the carbon nanotubes 6 on the working surfaces 1 and 4 invade each other respectively, and the working surfaces 1 and 4 adhere together to complete the assembly.

[0012] Furthermore, the glass fiber reinforced tape 2 is wound on the surface of the base tube 1.

[0013] Furthermore, the thickness of the carbon nanotube 6 between working surface 1 and working surface 4 is 50 nanometers.

[0014] Furthermore, the glass fiber reinforced tape 2 is 0.2 mm thick.

[0015] A high-strength thermoplastic pipe manufactured according to the above steps includes a base pipe 1, the surface of which is wound with a glass fiber reinforcing tape 2, and a carbon nanotube layer 7 is provided between the interface of the base pipe 1 and the glass fiber reinforcing tape 2, the carbon nanotube layer 7 anchoring the base pipe 1 and the glass fiber reinforcing tape 2 together.

[0016] Example 2: A method for assembling a high-strength thermoplastic pipe includes the following steps: (1) Winding the reinforcing strip: A glass fiber reinforcing strip 2 is wound on the surface of the base tube 1. During the winding process, two heating laser sources are used to irradiate the working surface 3 of the base tube 1 and the working surface 4 of the glass fiber reinforcing strip 2 respectively, so that the polymer composite material of the working surface 3 of the base tube and the working surface 4 of the glass fiber reinforcing strip are in a molten state. The glass fiber reinforcing strip 2 is wound on the surface of the base tube 1 in a spiral winding manner, and the edges of the adjacent two winds of glass fiber reinforcing strip 2 are joined together. (2) Applying static electricity: Apply opposite charges to the carbon nanotube and the molten working surface 1 and the molten working surface 2 respectively. Specifically, metal plate 5 is set on the side of working surface 3 and working surface 2 to form a negative electrode, and carbon nanotube 6 is placed in container 7 and then connected to metal plate 2 to form a positive electrode. (3) Release carbon nanotubes: Due to the mutual attraction of positive and negative charges, carbon nanotubes 6 are vertical, accelerate upward and invade the surfaces of working surface 1 3 and working surface 2 4. By controlling the release time and release channel area of ​​carbon nanotubes 6, the thickness of carbon nanotubes 6 on working surface 1 1 and working surface 2 4 can be controlled. (4) Apply shear force field to force assembly: The working surfaces 1 and 4 in the molten state generate a shear force field under mechanical pressure. Under the action of shear force, the carbon nanotubes 6 on the working surfaces 1 and 4 invade each other respectively, and the working surfaces 1 and 4 adhere together to complete the assembly.

[0017] Furthermore, the glass fiber reinforced tape 2 is wound in two layers on the surface of the base tube 1.

[0018] Furthermore, the thickness of the carbon nanotube 6 between working surface 1 and working surface 4 is 200 nanometers.

[0019] Furthermore, the glass fiber reinforced tape 2 is 0.3 mm thick.

[0020] A high-strength thermoplastic pipe manufactured according to the above steps includes a base pipe 1, the surface of which is wound with a glass fiber reinforcing tape 2, and a carbon nanotube layer 7 is provided between the interface of the base pipe 1 and the glass fiber reinforcing tape 2, the carbon nanotube layer 7 anchoring the base pipe 1 and the glass fiber reinforcing tape 2 together.

[0021] Example 3: A method for assembling a high-strength thermoplastic pipe includes the following steps: (1) Winding the reinforcing strip: A glass fiber reinforcing strip 2 is wound on the surface of the base tube 1. During the winding process, two heating laser sources are used to irradiate the working surface 3 of the base tube 1 and the working surface 4 of the glass fiber reinforcing strip 2 respectively, so that the polymer composite material of the working surface 3 of the base tube and the working surface 4 of the glass fiber reinforcing strip are in a molten state. The glass fiber reinforcing strip 2 is wound on the surface of the base tube 1 in a spiral winding manner, and the edges of the adjacent two winds of glass fiber reinforcing strip 2 are joined together. (2) Applying static electricity: Apply opposite charges to the carbon nanotube and the molten working surface 1 and the molten working surface 2 respectively. Specifically, metal plate 5 is set on the side of working surface 3 and working surface 2 to form a negative electrode, and carbon nanotube 6 is placed in container 7 and then connected to metal plate 2 to form a positive electrode. (3) Release carbon nanotubes: Due to the mutual attraction of positive and negative charges, carbon nanotubes 6 are vertical, accelerate upward and invade the surfaces of working surface 1 3 and working surface 2 4. By controlling the release time and release channel area of ​​carbon nanotubes 6, the thickness of carbon nanotubes 6 on working surface 1 1 and working surface 2 4 can be controlled. (4) Apply shear force field to force assembly: The working surfaces 1 and 4 in the molten state generate a shear force field under mechanical pressure. Under the action of shear force, the carbon nanotubes 6 on the working surfaces 1 and 4 invade each other respectively, and the working surfaces 1 and 4 adhere together to complete the assembly.

[0022] Furthermore, the glass fiber reinforced tape 2 is wound in three layers on the surface of the base tube 1.

[0023] Furthermore, the thickness of the carbon nanotube 6 between working surface 1 and working surface 4 is 500 nanometers.

[0024] Furthermore, the glass fiber reinforced tape 2 is 0.8 mm thick.

[0025] A high-strength thermoplastic pipe manufactured according to the above steps includes a base pipe 1, the surface of which is wound with a glass fiber reinforcing tape 2, and a carbon nanotube layer 7 is provided between the interface of the base pipe 1 and the glass fiber reinforcing tape 2, the carbon nanotube layer 7 anchoring the base pipe 1 and the glass fiber reinforcing tape 2 together.

[0026] The specific implementation of the present invention has been described in detail above, but it is only an example. The present invention is not limited to the specific implementation cases described above, and equivalent modifications to the present invention are also within the protection scope of the present invention.

Claims

1. A method for assembling a high-strength thermoplastic pipe, characterized in that, Includes the following steps: (1) Winding the reinforcing strip: A glass fiber reinforcing strip (2) is wound on the surface of the base tube (1). During the winding process, two heating laser sources are used to irradiate the working surface one (3) of the base tube (1) and the working surface two (4) of the glass fiber reinforcing strip (2) respectively, so that the polymer composite material of the working surface one (3) of the base tube and the working surface two (4) of the glass fiber reinforcing strip are in a molten state; the glass fiber reinforcing strip (2) is wound on the surface of the base tube (1) in a spiral winding manner, and the edges of the adjacent two winds of glass fiber reinforcing strip (2) are joined together; (2) Applying static electricity: Apply opposite charges to the carbon nanotube and the molten working surface one (3) and the molten working surface two respectively. Specifically, a metal plate one (5) is set on the working surface one (3) and the working surface two (4) to form a negative electrode, and the carbon nanotube (6) is placed in the container and then connected to the metal plate two (8) to form a positive electrode. (3) Release carbon nanotubes: Due to the mutual attraction of positive and negative charges, the carbon nanotubes (6) are vertical, accelerate upward and invade the surfaces of working surface one (3) and working surface two (4). By controlling the release time and release channel area of ​​the carbon nanotubes (6), the thickness of the carbon nanotubes (6) on working surface one (3) and working surface two (4) can be controlled. (4) Apply shear force field to force assembly: The working surface 1 (3) and working surface 2 (4) in the molten state generate a shear force field under mechanical pressure. Under the action of shear force, the carbon nanotubes (6) on the working surface 1 (3) and working surface 2 (4) invade each other respectively, and the working surface 1 (3) and working surface 2 (4) are bonded together to complete the assembly.

2. The assembly method of the high-strength thermoplastic pipe according to claim 1, characterized in that, The glass fiber reinforced tape (2) is wound in one or more layers on the surface of the base tube (1).

3. The assembly method of the high-strength thermoplastic pipe according to claim 1, characterized in that, The thickness of the carbon nanotube (6) between working surface one (3) and working surface two (4) is 50-500 nanometers.

4. The assembly method of the high-strength thermoplastic pipe according to claim 1, characterized in that, The glass fiber reinforced tape (2) is 0.2-0.8 mm thick.

5. A high-strength thermoplastic pipe manufactured by the assembly method according to any one of claims 1-4, comprising a base pipe (1), characterized in that, The base tube (1) is wrapped with a glass fiber reinforcing tape (2), and a carbon nanotube layer (7) is provided between the base tube (1) and the glass fiber reinforcing tape (2). The carbon nanotube layer (7) anchors the base tube (1) and the glass fiber reinforcing tape (2) together.

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