CuO/Ni/carbon fiber composite absorbing material and preparation method thereof
A composite wave-absorbing material and carbon fiber technology, applied in chemical instruments and methods, metal material coating technology, other chemical processes, etc., can solve problems such as narrow absorption frequency band and weak absorption strength, and achieve the effect of excellent impedance matching characteristics
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Embodiment 1
[0029] 1) Soak the carbon fiber in acetone and sonicate for 30 minutes, then clean it with distilled water to get a clean carbon fiber;
[0030] 2) Put the clean carbon fiber into concentrated nitric acid with a mass concentration of 65% for roughening treatment. The specific method of roughening: soak the clean carbon fiber in concentrated sulfuric acid while ultrasonically treating it for 1 hour, and then continue soaking in concentrated nitric acid for 6 hours , followed by washing with distilled water to neutrality to obtain roughened carbon fibers; ultrasonic treatment while soaking clean carbon fibers can make carbon fibers fully contact with concentrated nitric acid;
[0031] 3) Electrodeposit the coarsened carbon fibers in the nickel plating solution. During the electrodeposition, the nickel plating solution is continuously stirred under the condition of a constant temperature water bath at 25°C, so that the surface of the carbon fibers is electrodeposited with a metal ...
Embodiment 2
[0035] 1) Soak the carbon fiber in acetone and sonicate for 30 minutes, then clean it with distilled water to get a clean carbon fiber;
[0036] 2) Put the clean carbon fiber into concentrated nitric acid with a mass concentration of 65% for roughening treatment. The specific method of roughening: soak the clean carbon fiber in concentrated sulfuric acid while ultrasonically treating it for 1 hour, and then continue soaking in concentrated nitric acid for 6 hours , followed by washing with distilled water to neutrality to obtain roughened carbon fibers; ultrasonic treatment while soaking clean carbon fibers can make carbon fibers fully contact with concentrated nitric acid;
[0037] 3) Electrodeposit the coarsened carbon fibers in the nickel plating solution. During the electrodeposition, the nickel plating solution is continuously stirred under the condition of a constant temperature water bath at 25°C, so that the surface of the carbon fibers is electrodeposited with a metal ...
Embodiment 3
[0041] 1) Soak the carbon fiber in acetone and sonicate for 30 minutes, then clean it with distilled water to get a clean carbon fiber;
[0042] 2) Put the clean carbon fiber into concentrated nitric acid with a mass concentration of 65% for roughening treatment. The specific method of roughening: soak the clean carbon fiber in concentrated sulfuric acid while ultrasonically treating it for 1 hour, and then continue soaking in concentrated nitric acid for 6 hours , followed by washing with distilled water to neutrality to obtain roughened carbon fibers; ultrasonic treatment while soaking clean carbon fibers can make carbon fibers fully contact with concentrated nitric acid;
[0043] 3) Electrodeposit the coarsened carbon fibers in the nickel plating solution. During the electrodeposition, the nickel plating solution is continuously stirred under the condition of a constant temperature water bath at 25°C, so that the surface of the carbon fibers is electrodeposited with a metal ...
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