A kind of cobalt/polypyrrole nanocomposite absorbing material and preparation method thereof
A composite wave-absorbing material, pyrrole nanotechnology, applied in the field of wave-absorbing materials, can solve the problems of poor oxidation resistance and corrosion resistance of magnetic metal powder, and achieve excellent wave-absorbing effects
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[0026] (1) with CoCl 2 ·6H 2 O as raw material, NaBH 4 and NaOH as reducing agent, oleic acid as dispersant, 0.7molCoCl 2 ·6H 2 O was dissolved in 150 mL of distilled water, and 0.04 mol of oleic acid was added dropwise to obtain solution A, where 0.3 mol of NaOH and 0.6 mol of NaBH 4 Prepare 15mL solution B with distilled water, and slowly drop solution B into solution A in a water bath at 40°C at a rate of 2 seconds / drop while vigorously stirring;
[0027] (2) After solution B is added dropwise, continue to stir for 30 minutes, age for 30 minutes; then centrifuge, wash the precipitated product 2 to 3 times with deionized water and 2 to 3 times with absolute ethanol, and dry it in vacuum at 60°C 24h, under the protection of nitrogen, heat preservation at 500°C for 2h to obtain gray-black nano-cobalt powder;
[0028] (3) Add 0.1 mol of pyrrole monomer and nano-cobalt powder accounting for 20% of the mass of pyrrole monomer into 35 mL of hydrochloric acid solution (0.1 mol...
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