Carbon nano tube-doped poly-schiff base/ carbonyl iron powder composite stealth material
A carbon nanotube and carbonyl iron powder technology is applied in the field of carbon nanotube-doped polySchiff base/carbonyl iron powder composite stealth materials, and can solve the problems of general wave absorption effect, narrow wave absorption frequency band, narrow frequency band, etc. The effect of good wave absorption, wide absorption frequency and light weight
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Embodiment 1
[0020] Dissolve 0.2 mol p-phenylenediamine and 0.2 mol glyoxal in 300 ml ethanol solution, then add 10.6 g carbon nanotubes, and react with electromagnetic stirring at 50° C. for 8 h. The resulting product was filtered under reduced pressure, rinsed with ethanol for 2 to 3 times, dried and sintered at 300°C for 2 to 4 hours to obtain carbon nanotube-doped poly-Schiff base; Carbonyl iron powder mixed with 16.7g of carbonyl iron powder evenly to obtain carbon nanotube doped poly-Schiff base / carbonyl iron powder composite stealth material, wherein the carbonyl iron powder preferably has an average particle size of less than 3.5um. The composite stealth material is composed of carbon nanotubes: 11%, poly-Schiff base: 27%, and the rest is carbonyl iron powder. The composite cloaking material powder is blended with paraffin wax to prepare a compound, the composite cloaking material accounts for 50% by weight of the whole compound, and the rest is paraffin wax. The composite is coat...
Embodiment 2
[0022] 0.2 mol p-phenylenediamine and 0.2 mol glyoxal were dissolved in 300 ml ethanol solution, then 7.5 g carbon nanotubes were added, and reacted with electromagnetic stirring at 50° C. for 10 h. The resulting product was filtered under reduced pressure, rinsed with ethanol for 2 to 3 times, dried and sintered at 300°C for 2 to 4 hours to obtain carbon nanotube-doped poly-Schiff base; The carbon nanotube doped poly-Schiff base / carbonyl iron powder composite stealth material was obtained by uniformly mixing the Schiff base with 16.7 g carbonyl iron powder. Among them, the carbonyl iron powder preferably has an average particle size of less than 3.5um. The composite stealth material is composed of carbon nanotubes: 8%, poly-Schiff base: 29%, and the rest is carbonyl iron powder. The composite cloaking material powder is blended with paraffin wax to prepare a compound, the composite cloaking material accounts for 50% by weight of the whole compound, and the rest is paraffin w...
Embodiment 3
[0024] 0.2 mol p-phenylenediamine and 0.2 mol glyoxal were dissolved in 300 ml ethanol solution, then 5.28 g carbon nanotubes were added, and reacted with electromagnetic stirring at 50° C. for 10 h. The resulting product was filtered under reduced pressure, rinsed with ethanol for 2 to 3 times, dried and sintered at 300°C for 2 to 4 hours to obtain carbon nanotube-doped poly-Schiff base; The carbon nanotube doped poly-Schiff base / carbonyl iron powder composite stealth material was obtained by uniformly mixing the Schiff base with 16.7 g carbonyl iron powder. Among them, the carbonyl iron powder preferably has an average particle size of less than 3.5um. The composite stealth material is composed of carbon nanotubes: 6%, poly-Schiff base: 31%, and the rest is carbonyl iron powder. The composite cloaking material powder is blended with paraffin wax to prepare a compound, the composite cloaking material powder accounts for 50% by weight of the whole compound, and the rest is pa...
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