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Carbon fiber composite core composition and method for preparing carbon fiber composite core

A carbon fiber and composition technology, which is applied in the field of carbon fiber composite core composition and carbon fiber composite core preparation, can solve the problems of high operating temperature, corrosion resistance, small current carrying capacity, etc., and achieves high electrical conductivity, increased span, The effect of high current carrying capacity

Active Publication Date: 2010-04-28
艾瑞科电力电子科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing power wires are steel-cored aluminum-hinged wires, and the defects of steel-cored aluminum-hinged wires: ①Low strength
②Low electrical conductivity, small current carrying capacity, magnetic loss and thermal effect caused by steel wire material during wire operation, and high operating temperature
⑤ Not resistant to corrosion, there is a problem of galvanic corrosion between the aluminum wire and the galvanized steel wire when the conventional steel-cored aluminum hinged wire is energized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A carbon fiber composite core composition is composed of AFG-90 high temperature epoxy resin, curing agent, accelerator, and carbon fiber, wherein AFG-90 high temperature epoxy resin: curing agent: accelerator: carbon fiber=100:120~140:1~ 3:60-80, the carbon fiber is polyacrylonitrile-based carbon fiber, the curing agent is methyltetrahydrophthalic anhydride, medinadic acid anhydride, and the accelerator is 2-ethyl4-methylimidazole, Dimethylaminomethyl, benzyldimethylamine. The preparation method is the same as in Example 3.

Embodiment 2

[0033] The carbon fiber composite core composition is composed of AFG-90 high temperature epoxy resin, curing agent, accelerator, and carbon fiber. Among them, AFG-90 high temperature epoxy resin: curing agent: accelerator: carbon fiber = 100: 125 ~ 135: 1.5 ~ 2.5: 65-75, the curing agent is methyltetrahydrophthalic anhydride and medinadic acid anhydride, and the accelerator is 2-ethyl 4-methylimidazole, dimethylaminomethyl, and benzyldimethylamine . The preparation method is the same as in Example 3.

[0034] Carbon fiber composite core wire, including a resin matrix tube with a carbon fiber core connected to the inner cavity, a layer of clockwise rotating metal wire wrapped around the outer circumference of the resin matrix tube, and a counterclockwise layer wrapped around the outer circumference of the clockwise metal wire For the rotating metal wire, the outer circumferential end of the metal wire that rotates counterclockwise is connected with a tightening band, and the fun...

Embodiment 3

[0036] A method for preparing a carbon fiber composite core is carried out according to the following steps:

[0037] a. The carbon fiber enters the coupling agent sprayer from the creel through the guide mechanism and the tension control mechanism;

[0038] b. The fiber tension controller adjusts the tension, and the fiber monofilament tension is 45N~55N;

[0039] c. The coupling agent sprayer is equipped with a high-pressure nozzle to spray mist KH560 solvent. KH560 is made into a 1%-3% solution with 95% ethanol, and the spray volume is 0.05cm 3 / Minute, the fiber enters the vacuum injection prepreg device through the coupling agent sprayer to impregnate the high temperature epoxy resin glue and then enters the heated forming mold to be cured and formed. The heated forming mold is heated in three zones, namely the preheating zone and the gel zone. And the curing zone, the temperature of the three zones are respectively: 120℃~135℃, 155℃~175℃, 170℃~190℃;

[0040] d. After curing, it i...

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PUM

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Abstract

The invention relates to an electric lead, in particular to a carbon fiber composite core composition and a method for preparing a carbon fiber composite core. The composition comprises high-temperature epoxy resin, a curing agent, an accelerant and carbon fiber. The preparation method comprises the following steps that: the carbon fiber enters a coupling agent sprayer by a creel through a yarn-guide mechanism and a tension control mechanism; a tension controller adjusts the tension; a high-pressure spray head is arranged in the coupling agent sprayer to spray a foggy solvent; the fiber enters a vacuum injection pre-soaking device through the coupling agent sprayer to soak a high-temperature epoxy resin adhesive and then enters a heating molding mould to be cured and molded; the molding mould is divided into three areas for heating, and the three areas are a preheating area, a gelling area and a curing area respectively; the fiber is cured again by a drying cylinder after being cured; and the whole process is continuously driven by a hydraulic driving machine. Compared with the conventional lead, a carbon composite core lead has the advantages of light weight, high strength, low line loss, small sag, high temperature resistance, corrosion resistance, environmental friendliness and the like, and achieves the energy conservation, environmental protection and security of power transmission. The carbon fiber composite core composition and the method for preparing the carbon fiber composite core are widely applied to overhead power lines.

Description

Technical field [0001] The invention relates to a power wire, in particular to a carbon fiber composite core composition and a preparation method of the carbon fiber composite core. Background technique [0002] The existing power wire is a steel core aluminum hinged wire. The defects of the steel core aluminum hinged wire: ①Low strength. ②The conductivity is low, the current-carrying capacity is small, there are magnetic losses and thermal effects caused by the steel wire material in the wire operation, and the operating temperature is high. ③The coefficient of linear expansion is large, the strength is high, and the temperature of the steel core aluminum stranded wire rises from 26℃ to 183℃. The strength increased from 236mm to 1422mm. Increased 35 times. ④Heavy. ⑤It is not resistant to corrosion. When the conventional steel core aluminum hinged wire is energized, there is a galvanic corrosion problem between the aluminum wire and the galvanized steel wire. Summary of the ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/00C08K7/06C08G59/42H01B7/18
Inventor 吴亚明
Owner 艾瑞科电力电子科技(江苏)有限公司
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