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High-thermal-conductivity plastic pipe for cable as well as preparation method and application thereof

A technology of plastic pipes and high thermal conductivity, applied in the field of plastic pipes, can solve the problems of reducing the transmission efficiency and cable life, increasing the transportation cost, and short board of thermal conductivity. The effect of thermal conductivity

Inactive Publication Date: 2021-09-03
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal conductivity of plastic pipes is a short board, especially when it is used in electric power and optical cable sheathing, because the power transmission of the cable will generate heat, if it cannot be discharged, it will greatly reduce the transmission efficiency and the service life of the cable. Increased delivery costs

Method used

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  • High-thermal-conductivity plastic pipe for cable as well as preparation method and application thereof
  • High-thermal-conductivity plastic pipe for cable as well as preparation method and application thereof
  • High-thermal-conductivity plastic pipe for cable as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The embodiment of the present application provides a method for preparing plastic pipes for high thermal conductivity cables, and the specific operation steps are as follows:

[0056] (1) Weigh 1.5g of graphene microflakes (diameter 100 μm) and mix with 100mL of 95% ethanol and 50mL of deionized water, stir and disperse, and ultrasonicate for 50min in an ultrasonic disperser to prepare a suspension of graphene microflakes.

[0057] (2) Preparation of Fe 2+ and Fe 3+ mixed solution, Fe 2+ and Fe 3+ The molar ratio of the two is 5:1, weigh 2.085g FeSO 4 ·7H 2 O and 0.495gFeCl 3 ·6H 2 O, dissolved in 150 mL deionized water.

[0058] (3) Add graphene microsheet suspension in 500mL round bottom flask, after adding Fe 2+ and Fe 3+ The mixed solution is placed in a constant temperature water bath, and stirred electrically to make it evenly mixed to obtain a mixed solution.

[0059] (4) After stirring for 90 minutes, NaOH solution (0.4mol / L) was added dropwise to the ...

Embodiment 2

[0068] The embodiment of the present application provides a method for preparing plastic pipes for high thermal conductivity cables, and the specific operation steps are as follows:

[0069] The preparation method of the embodiment of the present application refers to the embodiment 1, the difference is that the graphene microsheet of the embodiment 1 is replaced by a carbon fiber tube; the rest of the steps are the same as the embodiment 1, and the plastic pipe for the high thermal conductivity cable is obtained.

[0070] The carbon fiber tubes used in this embodiment have a mesh size of 450-550 mesh and are purchased from Toray Corporation of Japan.

[0071] Using American Standard ASTM-E1461 for thermal conductivity and national standard GB / T1040.2-2006 for mechanical properties as test standards, the thermal conductivity and mechanical properties of the plastic pipe for high thermal conductivity cables prepared in Example 2 were tested. The computer simulation results show...

Embodiment 3

[0073] The embodiment of the present application provides a method for preparing plastic pipes for high thermal conductivity cables, and the specific operation steps are as follows:

[0074] The preparation method of the embodiment of the present application refers to the embodiment 1, the difference is that the graphene microsheet of the embodiment 1 is replaced by boron nitride; the rest of the steps are the same as the embodiment 1, and the plastic pipe for the high thermal conductivity cable is obtained.

[0075] Using American Standard ASTM-E1461 for thermal conductivity and national standard GB / T1040.2-2006 for mechanical properties as test standards, the thermal conductivity and mechanical properties of the plastic pipe for high thermal conductivity cables prepared in Example 3 were tested. The results of computer simulation show that the thermal conductivity of the plastic pipe for high thermal conductivity cables prepared in Example 3 of the present application is 1.8 ...

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Abstract

The invention belongs to the technical field of plastic pipes, and particularly relates to a high-thermal-conductivity plastic pipe for a cable and a preparation method and application of the plastic pipe. The invention provides the preparation method of the high-thermal-conductivity plastic pipe for a cable, and the method comprises the following steps: loading Fe3O4 on a thermal conductive filler to obtain a mixture; subjecting the mixture, plastic and a coupling agent to melt blending and extrusion in a double-screw extruder to obtain the high-thermal-conductivity plastic pipe for a cable. An annular electromagnetic device is arranged at a discharge port of the double-screw extruder in a sleeving manner. The prepared magnetized mixture is directionally arranged in the plastic pipe along the central axis through induction of an annular magnetic field, the radial heat conduction capacity and the temperature response speed of Fe3O4 in the plastic pipe are improved, the heat conduction performance of the plastic pipe is improved on the basis that the mechanical performance of the plastic pipe is not greatly reduced, and the plastic pipe can be applied to a long-distance power transmission pipeline to effectivley solve the technical problems that a plastic cable is poor in heat conduction capability and heat is difficult to dissipate.

Description

technical field [0001] The application belongs to the technical field of plastic pipes, and in particular relates to a plastic pipe for high thermal conductivity cables and its preparation method and application. Background technique [0002] Plastic pipe is a high-tech composite chemical building material. It is the fourth largest new type of building material after steel, wood and cement. Compared with traditional cast iron pipes, galvanized steel pipes, cement pipes and other pipes, plastic pipes have the advantages of energy saving, environmental protection, light weight and high strength, corrosion resistance, smooth inner wall without scaling, easy construction and maintenance, and long service life. Widely used in building water supply and drainage, electric power, optical cable sheathing and industrial fluid transportation and other fields. However, the thermal conductivity of plastic pipes is a short board, especially when it is used in electric power and optical c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/04C08K3/22C08K9/12C08K5/5425C08K7/06C08K3/38
CPCC08K3/042C08K3/22C08K9/12C08K5/5425C08K7/06C08K3/38C08K2003/385C08K2003/2275C08K2201/01C08L2203/18C08L23/12
Inventor 张婧婧黄华斌黄家安谭英杰吴嘉杰胡陈诚
Owner GUANGDONG UNIV OF TECH
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