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Preparation method of ferrite electromagnetic shielding material
The invention discloses a preparation method of a ferrite electromagnetic shielding material. The ferrite electromagnetic shielding material comprises the following raw materials: NiO, ZnO, CuO, Fe2O3 and Co2O3; the preparation method comprises the following steps: carrying out dry ball-milling mixing on powder of the raw materials for 2-5 hours to obtain a mixture with the particle size of less than or equal to 1.0 mu m; sintering the mixture at 800-850 DEG C for 2-3 hours to obtain a pre-sintered material; carrying out coarse crushing on the pre-sintered material, and then carrying out continuous dry fine crushing to obtain fine powder with the particle size D50 of 0.5-0.8 micron and the particle size D90 of 1.5-1.8 microns; stirring and defoaming the fine powder, an additive and an organic solvent to obtain tape casting slurry; casting the slurry onto a PET release film, drying and slicing to obtain a cast sheet; and sintering the cast sheet at 900-1000 DEG C for 2-3 hours to obtain the electromagnetic shielding material, the preparation method disclosed by the invention is obviously more efficient, and corresponding drying steps are reduced.
本发明公开了一种铁氧体电磁屏蔽材料的制备方法，包括原料：NiO、ZnO、CuO、Fe2O3以及Co2O3；制备方法包括以下步骤：将所述原料的粉末进行干法球磨混合2～5h，得粒度≤1.0μm的混合料；将混合料800～850℃烧结2～3小时，得预烧料；将预烧料先粗破碎，然后进行连续性的干法细碎，得到粒度D50为0.5～0.8微米，D90为1.5～1.8微米的细粉；将细粉与添加剂和有机溶剂搅拌脱泡，得到流延浆料；将浆料流延到PET离型膜上，干燥后切片，得流延片；将流延片900～1000℃烧结2～3小时，得到所述电磁屏蔽材料；本发明制备方法明显更加的高效同时减少相应的干燥步骤。
Preparation method of ferrite electromagnetic shielding material
The invention discloses a preparation method of a ferrite electromagnetic shielding material. The ferrite electromagnetic shielding material comprises the following raw materials: NiO, ZnO, CuO, Fe2O3 and Co2O3; the preparation method comprises the following steps: carrying out dry ball-milling mixing on powder of the raw materials for 2-5 hours to obtain a mixture with the particle size of less than or equal to 1.0 mu m; sintering the mixture at 800-850 DEG C for 2-3 hours to obtain a pre-sintered material; carrying out coarse crushing on the pre-sintered material, and then carrying out continuous dry fine crushing to obtain fine powder with the particle size D50 of 0.5-0.8 micron and the particle size D90 of 1.5-1.8 microns; stirring and defoaming the fine powder, an additive and an organic solvent to obtain tape casting slurry; casting the slurry onto a PET release film, drying and slicing to obtain a cast sheet; and sintering the cast sheet at 900-1000 DEG C for 2-3 hours to obtain the electromagnetic shielding material, the preparation method disclosed by the invention is obviously more efficient, and corresponding drying steps are reduced.
本发明公开了一种铁氧体电磁屏蔽材料的制备方法，包括原料：NiO、ZnO、CuO、Fe2O3以及Co2O3；制备方法包括以下步骤：将所述原料的粉末进行干法球磨混合2～5h，得粒度≤1.0μm的混合料；将混合料800～850℃烧结2～3小时，得预烧料；将预烧料先粗破碎，然后进行连续性的干法细碎，得到粒度D50为0.5～0.8微米，D90为1.5～1.8微米的细粉；将细粉与添加剂和有机溶剂搅拌脱泡，得到流延浆料；将浆料流延到PET离型膜上，干燥后切片，得流延片；将流延片900～1000℃烧结2～3小时，得到所述电磁屏蔽材料；本发明制备方法明显更加的高效同时减少相应的干燥步骤。
Preparation method of ferrite electromagnetic shielding material
一种铁氧体电磁屏蔽材料的制备方法
TAN CHUNLIN (author) / ZHANG ZHILU (author) / XIAO DAN (author) / TANG DEMING (author) / LIU GUO (author) / LYU JIA (author)
2024-03-26
Patent
Electronic Resource
Chinese
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