Carbon fiber composite core composition and method for preparing carbon fiber composite core
A carbon fiber and composite core technology, applied in conductors, electrical components, circuits, etc., can solve problems such as high operating temperature, low ampacity, and galvanic corrosion, and achieve high conductivity, large ampacity, and high tensile strength.
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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, medinaric anhydride, and the accelerator is 2-ethyl 4-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, wherein AFG-90 high-temperature epoxy resin: curing agent: accelerator: carbon fiber=100:125~135:1.5~2.5: 65 to 75, the curing agent is methyl tetrahydrophthalic anhydride, medinac anhydride, the accelerator is 2-ethyl 4-methylimidazole, dimethylaminomethyl, benzyldimethylamine . The preparation method is the same as in Example 3.
[0034] Carbon fiber composite core wire, including a resin matrix tube inner cavity connected with a carbon fiber core, a layer of clockwise rotating metal wire wrapped around the outer circumference of the resin matrix tube, and a layer of counterclockwise rotating metal wire wrapped around the outer circumference of the clockwise metal wire The rotating metal wire is connected with a fastening hoop at the end of the outer circumference of the counterclockwise rotating metal wire, and the function of ...
Embodiment 3
[0036] A method for preparing a carbon fiber composite core, carried out according to the following steps:
[0037] a. The carbon fiber enters the coupling agent sprayer from the creel through the yarn 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, and KH560 is prepared into a 1%-3% solution with 95% ethanol, and the spraying volume is 0.05cm 3 per minute, the fiber enters the vacuum injection prepreg device through the coupling agent sprayer, impregnated with high-temperature epoxy resin glue, and then enters the heated molding mold for curing and molding. The heated molding mold is heated in three zones, namely the preheating zone and the gelling zone and curing zone, the temperatures of the three zones are respectively: 120°C~135°C, 155°C~175°C, 170°C~190°...
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