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Composite material cable conduit

A technology of cable conduit and composite materials, applied in shielding materials, rigid plastic containers with coated shielding materials, electrical components, etc., can solve problems such as signal leakage, permanent damage, signal, human and object interference, etc., and achieve good shielding Performance, good shielding effect, effective effect of electromagnetic radiation

Pending Publication Date: 2021-03-19
南京特塑复合材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ordinary cable ducts do not have shielding function, and various transmission lines installed in them will generate electromagnetic radiation during the process of transmitting signals. On the one hand, it will cause signal leakage, increase transmission loss, and reduce transmission distance and transmission efficiency; on the other hand , electromagnetic radiation will cause interference to nearby signals, people and objects, or even cause permanent damage

Method used

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  • Composite material cable conduit

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Using 12K carbon fiber as a reinforcing material, a polypropylene composite cable conduit with a diameter of 200mm and shielding function was prepared. The specific preparation process is as follows:

[0024] A composite material cable conduit, comprising a high melting point polypropylene inner tube 1 and a composite material shielding layer 2 coated on the surface of the inner tube;

[0025] The shielding layer 2 is a carbon fiber reinforced modified polypropylene layer;

[0026] The modified polypropylene is low-melting polypropylene for shielding with conductive filler added.

[0027] The preparation steps are:

[0028] Step (1): Put polypropylene with a melting point of 165°C and 800-mesh silver powder into a high-speed mixer for thorough mixing, and then extrude to granulate;

[0029] Step (2): put polypropylene with a melting point of 185°C into a twin-screw extruder for melt extrusion, traction, and shaping to prepare a high-melting-point polypropylene inner t...

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PUM

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Abstract

The invention discloses a composite material cable conduit, which comprises a high-melting-point polypropylene inner tube 1 and a composite shielding layer 2 coating the surface of the inner tube, andis specifically formed by the following steps of: (1) putting low-melting-point polypropylene and conductive filler into a high-speed mixer to be fully mixed, and then extruding and granulating; (2)putting high-melting-point polypropylene into a double-screw extruder for melt extrusion to prepare a high-melting-point polypropylene inner pipe 1; and (3) performing melt impregnation on the carbonfiber to modify the low-melting-point polypropylene, winding the carbon fiber on the surface of the high-melting-point polypropylene inner tube, and performing curing molding to obtain a composite shielding layer 2. The prepared composite cable conduit has excellent shielding performance, meanwhile, the circumferential direction of the cable conduit is reinforced, the strength is higher, and the service life is longer.

Description

technical field [0001] The invention belongs to the field of cable guides and relates to a composite material cable guide. Background technique [0002] With the progress of the times, the intelligence and precision control of various intelligent and technological electronic products are getting higher and higher, which largely depends on the transmission efficiency and transmission accuracy of the transmission signal. At present, ordinary cable ducts do not have shielding function, and various transmission lines installed in them will generate electromagnetic radiation during the process of transmitting signals. On the one hand, it will cause signal leakage, increase transmission loss, and reduce transmission distance and transmission efficiency; on the other hand , electromagnetic radiation will cause interference to nearby signals, people and objects, or even cause permanent damage. Contents of the invention [0003] The object of the present invention is to provide a ...

Claims

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Application Information

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IPC IPC(8): H02G3/04H05K9/00C08L23/12C08K3/08C08K7/06C08J5/04
CPCH02G3/0406H02G3/0462H05K9/0047H05K9/009H05K9/0098C08J5/042C08J2323/12C08K2003/0806C08K7/06C08K2201/001C08L2203/18
Inventor 水锋杨杰张守玉王孝军陈同海敬雪峰
Owner 南京特塑复合材料有限公司
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