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Preparation method for composite cable core

A composite material and cable core technology, used in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of small volume shrinkage, slow curing speed, and difficult pultrusion process.

Inactive Publication Date: 2017-02-15
余姚市楷瑞电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the heat resistance and other properties of epoxy resin are very good, its curing characteristics: slow curing speed, small volume shrinkage during curing, and large reaction heat release
This also leads to difficulties in the pultrusion process

Method used

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  • Preparation method for composite cable core

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Embodiment Construction

[0032] Embodiments for carrying out the present invention will be described below. However, the scope of the present invention is not limited to the above-described embodiments, and various changes can be made to the present invention as long as the gist is not impaired. Unless otherwise stated, the following proportions refer to weight ratios.

[0033] Examples and Comparative Examples

[0034]The formula shown in the table below and the samples of the examples and the comparative examples were prepared according to the method described above, wherein the glass fibers used were two kinds of untwisted glass fiber rovings, and the specifications were 2400tex and 1200Tex respectively. The resin formula I that adopts in the embodiment: resin: curing agent: release agent: filler: accelerator=100: 141: 5: 30: 3, the resin formula II that comparative example adopts is as follows: resin: curing agent: accelerator= 100:140:0.8.

[0035] The result is as follows:

[0036]

[003...

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Abstract

The invention provides a preparation method for a composite cable core. The preparation method comprises the following steps that (1) continuous glass fibers are soaked in a solution of a resin system; (2) the soaked glass fibers are pulled and extruded by a pulling and extruding device comprising a pulling and extruding die, wherein the pulling and extruding speed is 20-40 cm / min, and the temperatures of three areas of the pulling and extruding die are respectively 180-200 DEG C, 210-215 DEG C and 210-215 DEG C; and (3) the resin system is furthered cured by a heating chamber, wherein the resin system comprises the following components in percent by weight: 100 parts of epoxy resin, 130-150 parts of a curing agent, 3-8 parts of a filler, 20-50 parts of a release agent and 2-5 parts of an accelerant. Through the adoption of the preparation method, the problem that during the pulling and extruding process, the surface of a composite is powdered, so that the surface of the composite is unsmooth is solved.

Description

technical field [0001] The invention relates to a composite material cable core and a preparation method thereof. Background technique [0002] People are constantly trying to find ideal conductors for overhead transmission lines to replace traditional conductors, such as heat-resistant aluminum alloy conductors (TACSR), heat-resistant aluminum alloy conductors with invar cores (ZTACSR), and heat-resistant aluminum alloy conductors with gap steel cores (GTACSR). , Aluminum-based ceramic fiber aluminum stranded wire ACCR (Alaminum ConductorComposite Reinforced), carbon fiber core composite material synthetic core annealed aluminum conductor (JRLX / T) and other types. [0003] In the 1990s, Japan used a composite material core wire composed of carbon fiber and thermosetting resin to replace the steel core, and developed a new composite material synthetic core wire, that is, carbon fiber core aluminum stranded wire. First, the PAN-based 12K carbon fiber with a single diameter o...

Claims

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Application Information

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IPC IPC(8): B29C70/52H01B13/00B29K63/00
CPCB29C70/52B29C70/525B29K2063/00H01B13/00
Inventor 应国军
Owner 余姚市楷瑞电子有限公司
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