Flaky carbonyl iron/octahedral tapered zinc ferrite wave-absorbing material, and preparation method and application thereof
A technology of zinc ferrite and wave-absorbing materials, applied in chemical instruments and methods, iron compounds, magnetic field/electric field shielding, etc., can solve problems such as reducing electromagnetic absorption performance, and achieve good wave-absorbing performance and good effective dielectric loss The effect of ability and simple process
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Embodiment 1
[0032] A preparation method of flake carbonyl iron / octahedral cone-shaped zinc ferrite wave-absorbing material, comprising the steps of:
[0033] Step 1: Weigh 250 mg flake carbonyl iron and 50 mg zinc acetate respectively and place them in a beaker, add 30 mL of distilled water and 30 mL of ethylene glycol into the beaker to obtain an initial solution, and mechanically stir the solution for 30 minutes;
[0034] Step 2, transfer the solution obtained in step 1 to an autoclave for solvothermal reaction, the temperature required for the reaction is 180°C, and the reaction time is 12h;
[0035] Step 3, after the reaction described in step 2 is completed, wash with distilled water and absolute ethanol three times respectively, and dry after washing to obtain the desired product.
Embodiment 2
[0037] A preparation method of flake carbonyl iron / octahedral cone-shaped zinc ferrite wave-absorbing material, comprising the steps of:
[0038] Step 1. Weigh 250 mg flake iron carbonyl and 100 mg zinc acetate and place them in a beaker, add 30 mL of distilled water and 30 mL of ethylene glycol into the beaker to obtain an initial solution, and mechanically stir the solution for 30 minutes;
[0039] Step 2, transfer the solution obtained in step 1 to an autoclave for solvothermal reaction, the temperature required for the reaction is 180°C, and the reaction time is 12h;
[0040] Step 3, after the reaction described in step 2 is completed, wash with distilled water and absolute ethanol three times respectively, and dry after washing to obtain the desired product.
Embodiment 3
[0042] A preparation method of flake carbonyl iron / octahedral cone-shaped zinc ferrite wave-absorbing material, comprising the steps of:
[0043] Step 1: Weigh 250 mg flake carbonyl iron and 150 mg zinc acetate respectively and place them in a beaker, add 30 mL of distilled water and 30 mL of ethylene glycol into the beaker to obtain an initial solution, and mechanically stir the solution for 30 minutes;
[0044] Step 2, transfer the solution obtained in step 1 to an autoclave for solvothermal reaction, the temperature required for the reaction is 180°C, and the reaction time is 12h;
[0045] Step 3, after the reaction described in step 2 is completed, wash with distilled water and absolute ethanol three times respectively, and dry after washing to obtain the desired product.
[0046] Figure 1~3 It is respectively the SEM picture of the sheet carbonyl iron / octahedral cone-shaped zinc ferrite absorbing material prepared in embodiment 1, 2, 3, from figure 1 It can be seen tha...
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