Metal-loaded carbon/polymer-based electromagnetic shielding material and preparation method thereof
An electromagnetic shielding material and electromagnetic shielding technology, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problems of poor mechanical properties and electromagnetic shielding performance of carbon/polymer-based materials, achieve environmental friendliness, and improve electromagnetic shielding efficiency. Effect
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Embodiment 1
[0024] A metal-supported carbon / polymer-based electromagnetic shielding material comprising: CoFe 2 o 4 Nano powder modified MoS 2 On, get MoS 2 @CoFe 2 o 4 Nano-powder, then loaded on the graphene microchip, then impregnated by polyurethane (PU), then melted and loaded on polylactide (PLA), and then filled with PBAT by vacuum infiltration to obtain an electromagnetic shielding composite material, the MoS 2 @CoFe 2 o 4 The nano powder content is 10wt%, the graphene microsheet content is 12wt%, the polyurethane content is 8wt%, the PBAT content is 10wt%, and the balance is polylactide.
[0025] Among them, the MoS 2 @CoFe 2 o 4 The molar ratio of Mo, Co and Fe in the nanopowder is 1:2:1.
[0026] A method for preparing an electromagnetic shielding composite material, comprising the following steps:
[0027] S1, CoFe 2 o 4 Preparation of nanoparticles: Mix iron acetylacetonate and cobalt acetylacetonate in ammonium oleate, and continuously magnetically stir at room ...
Embodiment 2
[0036] A metal-supported carbon / polymer-based electromagnetic shielding material comprising: CoFe 2 o 4 Nano powder modified MoS 2 On, get MoS 2 @CoFe 2 o 4 Nano-powder, then loaded on the graphene microchip, then impregnated by polyurethane (PU), then melted and loaded on polylactide (PLA), and then filled with PBAT by vacuum infiltration to obtain an electromagnetic shielding composite material, the MoS 2 @CoFe 2 o 4 The nano powder content is 10wt%, the graphene microsheet content is 15wt%, the polyurethane content is 5wt%, the PBAT content is 8wt%, and the balance is polylactide.
[0037] Among them, the MoS 2 @CoFe 2 o 4 The molar ratio of Mo, Co and Fe in the nanopowder is 1.5:2:1.2.
[0038] A method for preparing an electromagnetic shielding composite material, comprising the following steps:
[0039] S1, CoFe 2 o 4 Preparation of nanoparticles: Mix iron acetylacetonate and cobalt acetylacetonate in ammonium oleate, and continuously magnetically stir at ro...
Embodiment 3
[0049] A metal-supported carbon / polymer-based electromagnetic shielding material comprising: CoFe 2 o 4 Nano powder modified MoS 2 On, get MoS 2 @CoFe 2 o 4 Nano-powder, loaded on the graphene microchip, then impregnated by polyurethane (PU), melted and loaded on polylactide (PLA), and then filled with PBAT by vacuum infiltration to obtain electromagnetic shielding composite material, the CoFe 2 o 4 The nano powder content is 8wt%, the graphene microsheet content is 14wt%, the polyurethane content is 6wt%, the PBAT content is 9wt%, and the balance is polylactide.
[0050] Among them, the MoS 2 @CoFe 2 o 4 The molar ratio of Mo, Co and Fe in the nanopowder is 1.5:2:1.
[0051] A method for preparing an electromagnetic shielding composite material, comprising the following steps:
[0052] S1, CoFe 2 o 4 Preparation of nanoparticles: Mix iron acetylacetonate and cobalt acetylacetonate in ammonium oleate, and continuously magnetically stir at room temperature for 1 h t...
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