• 专利标题:   Method for preparing layered compound and magnetic graphite composite wave-absorbing material, involves adding trivalent iron salt and graphite material into alcohol solution, stirring, placing mixed solution into reaction vessel, filtering, washing, and drying.
  • 专利号:   CN115955833-A
  • 发明人:   ZHONG B, BAO B, TIAN W, WANG C
  • 专利权人:   WEIHAI YUNSHAN TECHNOLOGY CO LTD, HARBIN INST TECHNOLOGY AT WEIHAI
  • 国际专利分类:   H05K009/00
  • 专利详细信息:   CN115955833-A 11 Apr 2023 H05K-009/00 202340 Chinese
  • 申请详细信息:   CN115955833-A CN11455050 21 Nov 2022
  • 优先权号:   CN11455050

▎ 摘  要

NOVELTY - The method for preparing composite wave-absorbing material of layered compound and magnetic graphite, involves adding trivalent iron salt and graphite material into an alcohol solution, stirring and ultrasonically processing to disperse uniformly to obtain a first mixed solution, placing the first mixed solution into a hydrothermal reaction vessel, heating and reacting for a period of time, cooling, filtering, washing, and drying to obtain magnetic iron oxide particle modified magnetic graphite material, dispersing 2-methylimidazole, metal salt and the magnetite material in deionized water, mechanically stirring to obtain second mixed solution, leaving still and aging the second mixed solution and drying the precipitate to obtain the product. The magnetic iron oxide particles have solid and/or hollow spherical shape. USE - Method for preparing layered compound and magnetic graphite composite wave-absorbing material (claimed). ADVANTAGE - The method enables to prepare layered compound and magnetic graphite composite wave-absorbing material with good wave absorbing characteristics, and low preparation cost, and does not cause environmental pollution, and improves the graphite nanosheet single component of electromagnetic wave absorption characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a layered compound and magnetic graphite composite wave-absorbing material. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view illustrating the comparison of the absorbing properties of the layered compound and the magnetic graphite composite absorbing material at different thicknesses.