A kind of carbon nanotube composite absorbing material and preparation method thereof
A carbon nanotube composite and wave-absorbing material technology, which is applied to carbon compounds, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problems of low purity, poor environmental stability, and wave-absorbing performance. Poor and other problems, to achieve the effect of high purity, improved microwave absorption performance, and light weight
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Embodiment 1
[0034] Such as figure 1 , figure 2 with Figure 4 As shown, a carbon nanotube composite wave-absorbing material, the material is a precursor solution 1 prepared by dissolving a catalyst in a liquid carbon source containing additives, and then made by a pressureless sintering method with carbon nanotubes as a matrix 1. Add iron particles and cobalt-nickel alloy particles to the inner wall of the carbon nanotubes, and a composite wave-absorbing material with rare earth compounds attached to the outer wall; the liquid carbon source is 1,2-dichloroethane solution, and the additive is Lanthanum nitrate, ethanol that promotes the dissolution of lanthanum nitrate is also added in the liquid carbon source; the volume ratio of the 1,2-dichloroethane solution to ethanol is 9:1, and the catalyst contains: 33.93wt% dichloromethane Iron, 33.19 wt% cobaltocene and 32.88 wt% nickelocene.
[0035] The rare earth compound is LaOCl (lanthanum oxychloride).
[0036] The component ratio of t...
Embodiment 2
[0049] Such as figure 1 , image 3 with Figure 5 As shown, in this embodiment, the step (1) of the preparation method of the carbon nanotube composite wave-absorbing material is: dissolving 0.82g ferrocene, 0.80g ferrocene cobalt, and 0.78g ferrocene in 54ml of 1,2-dichloroethane and 6ml of ethanol in the mixed solution, mix well and then add 0.24g lanthanum nitrate to the mixed solution, after ultrasonic vibration evenly, make the precursor solution 1;
[0050] Other than that, other contents are the same as those in Embodiment 1.
Embodiment 3
[0052] In this embodiment, in the step (3) of the preparation method of the carbon nanotube composite wave-absorbing material, the temperature of the preheating zone 4 is kept at 220° C., and the reaction zone of the tube furnace 5 is heated so that The reaction zone temperature was maintained at 750°C.
[0053] Other than that, other contents are the same as those in Embodiment 1.
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