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High-strength PE electric conduit and preparation method thereof

A high-strength, electric technology, applied in the direction of general water supply saving, coating, polyurea/polyurethane coating, etc., can solve the requirements of high compressive performance and impact resistance of power tubes, affect the service life of power tubes, and poor mechanical strength And other problems, to achieve good shock absorption, long service life, improve the effect of mechanical strength

Active Publication Date: 2022-07-08
广东中讯通讯设备实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the use of power conduits, wires and cables are usually placed inside the power pipes, and then the power pipes are buried in the ground or built into walls; Some power conduits are mostly made of plastic integral molding, with a single structure, and their mechanical strength is mainly determined by the material itself
[0004] Therefore, the existing PE power conduit has the problem of poor mechanical strength, and is prone to deformation or rupture under impact and high pressure conditions, which affects the service life of the power conduit

Method used

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  • High-strength PE electric conduit and preparation method thereof
  • High-strength PE electric conduit and preparation method thereof

Examples

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Effect test

preparation example 1

[0047] Preparation Example 1: The modified silicon carbide fiber was prepared by the following method:

[0048] Weigh 1kg of silicon carbide fiber and place it in 3kg of triethylenetetramine solution, ultrasonically disperse it for 5min at 20kHz, the length of silicon carbide fiber is 1μm, and triethylenetetramine is an aqueous solution of triethylenetetramine with a mass fraction of 20%, then Modified silicon carbide fibers are prepared by drying and dispersing until they are not bonded to each other.

preparation example 2

[0049] Preparation Example 2: The modified silicon carbide fiber was prepared by the following method:

[0050] Weigh 1kg of silicon carbide fiber and place it in 2kg of triethylenetetramine solution, ultrasonically disperse it for 5min under the condition of 20kHz, the length of silicon carbide fiber is 1μm, and triethylenetetramine is an aqueous solution of triethylenetetramine with a mass fraction of 20%, then Modified silicon carbide fibers are prepared by drying and dispersing until they are not bonded to each other.

preparation example 3

[0051] Preparation Example 3: The modified silicon carbide fiber was prepared by the following method:

[0052] Weigh 1kg of silicon carbide fiber and place it in 4kg of triethylenetetramine solution, ultrasonically disperse it for 5min at 20kHz, the length of silicon carbide fiber is 1μm, and triethylenetetramine is an aqueous solution of triethylenetetramine with a mass fraction of 20%, then Modified silicon carbide fibers are prepared by drying and dispersing until they are not bonded to each other.

[0053] Preparation example of adhesion-promoting paint

[0054] The following raw materials and equipment are all commercially available.

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Abstract

The invention relates to the field of power cable accessory preparation, and particularly discloses a high-strength PE power conduit and a preparation method thereof. The high-strength PE electric conduit comprises a PE pipe, an adhesion promoting layer and an epoxy resin layer, the adhesion promoting layer is prepared from a polyurethane hot melt adhesive and modified silicon carbide fibers; the epoxy resin layer is prepared from the following raw materials: epoxy resin, an amine curing agent, a toughening agent, modified composite fibers, filling micro powder, a flatting agent and an anti-ultraviolet additive; the preparation method comprises the following steps: hot-melting the polyurethane hot melt adhesive, and mixing with the modified silicon carbide to obtain an adhesion-promoting coating; weighing epoxy resin, an amine curing agent, a toughening agent, modified composite fibers, filling micro powder, a flatting agent and an anti-ultraviolet additive, and mixing to obtain an epoxy resin coating; the surface of the PE pipe is sprayed with an adhesion-promoting coating, then the surface of the PE pipe is sprayed with an epoxy resin coating, and after curing, the adhesion-promoting coating is cured into an adhesion-promoting layer; the epoxy resin coating is cured into an epoxy resin layer; the invention has the advantages of improving the mechanical strength of the electric conduit and prolonging the service life of the electric conduit.

Description

technical field [0001] The present application relates to the field of preparation of power cable accessories, and more particularly, to a high-strength PE power conduit and a preparation method thereof. Background technique [0002] With the development of the electric power industry, the use of the supporting power conduits has also gradually increased. The power conduits have good electrical insulation and will not produce electrical corrosion. [0003] During the use of the power conduit, the wires and cables are usually arranged inside the power pipe, and then the power pipe is buried underground or built into the wall; so the compressive performance and impact resistance of the power pipe are required to be high, and the current Some power conduits are mostly made of plastic integrated molding, with a single structure, and their mechanical strength is mainly determined by the material itself. [0004] Therefore, the existing PE power conduit has the problem of poor me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/043C08L23/06C08K3/22C09D175/04C09D7/62C09D163/00C09D7/65C09D7/61
CPCC08J7/042C08J7/043C09D175/04C09D7/62C09D163/00C09D7/65C09D7/61C09D7/70C08K3/22C08J2323/06C08J2463/00C08J2475/04C08K2201/011C08K2003/2244C08L23/06C08K9/04C08K7/10C08L61/28C08K7/08C08K9/06C08K3/36Y02A20/20
Inventor 杨国涛杨杰
Owner 广东中讯通讯设备实业有限公司
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