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Preparation method and application of boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material
The invention discloses a preparation method and application of a boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material. The preparation method comprises the following steps: preparing a boron and nitrogen doped graphene oxide solution; adding the phenolic resin precursor solution into the boron and nitrogen doped graphene oxide solution to obtain a precursor mixed solution; adding the precursor mixed solution into mineral oil, stirring at a high speed and then stirring at a low speed, heating and curing to obtain an organic particle/mineral oil mixture; filtering, separating, cleaning and drying the organic particle/mineral oil mixture to obtain organic composite aerogel powder; putting the organic composite aerogel powder into a carbonization furnace, and sintering and carbonizing under the protection of inert gas to obtain the boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material. The boron and nitrogen co-doped graphene/carbon aerogel wave-absorbing material prepared by the invention has a higher attenuation factor and a better impedance matching characteristic, so that more electromagnetic waves can be absorbed into the material, and the material can be reflected and absorbed for multiple times.
本发明公开了一种硼、氮共掺杂石墨烯碳气凝胶吸波材料的制备方法及应用，包括：将制备硼、氮掺杂氧化石墨烯溶液；将酚醛树脂前驱体溶液加入硼、氮掺杂氧化石墨烯溶液中，得到前驱体混合溶液；将前驱体混合溶液加入矿物油中，高速搅拌后低速搅拌，并升温、固化，得到有机颗粒/矿物油混合物；将有机颗粒/矿物油混合物过滤分离，清洗，干燥，得到有机复合气凝胶粉末；将有机复合气凝胶粉末放入炭化炉中，在惰性气体保护下进行烧结，碳化，得到硼、氮共掺杂石墨烯碳气凝胶吸波材料。该发明制得的硼、氮共掺杂石墨烯/碳气凝胶吸波材料具有更高的衰减因子与更好的阻抗匹配特性，能够使更多的电磁波吸收到上述材料中，并对其进行多次反射和吸收。
Preparation method and application of boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material
The invention discloses a preparation method and application of a boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material. The preparation method comprises the following steps: preparing a boron and nitrogen doped graphene oxide solution; adding the phenolic resin precursor solution into the boron and nitrogen doped graphene oxide solution to obtain a precursor mixed solution; adding the precursor mixed solution into mineral oil, stirring at a high speed and then stirring at a low speed, heating and curing to obtain an organic particle/mineral oil mixture; filtering, separating, cleaning and drying the organic particle/mineral oil mixture to obtain organic composite aerogel powder; putting the organic composite aerogel powder into a carbonization furnace, and sintering and carbonizing under the protection of inert gas to obtain the boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material. The boron and nitrogen co-doped graphene/carbon aerogel wave-absorbing material prepared by the invention has a higher attenuation factor and a better impedance matching characteristic, so that more electromagnetic waves can be absorbed into the material, and the material can be reflected and absorbed for multiple times.
本发明公开了一种硼、氮共掺杂石墨烯碳气凝胶吸波材料的制备方法及应用，包括：将制备硼、氮掺杂氧化石墨烯溶液；将酚醛树脂前驱体溶液加入硼、氮掺杂氧化石墨烯溶液中，得到前驱体混合溶液；将前驱体混合溶液加入矿物油中，高速搅拌后低速搅拌，并升温、固化，得到有机颗粒/矿物油混合物；将有机颗粒/矿物油混合物过滤分离，清洗，干燥，得到有机复合气凝胶粉末；将有机复合气凝胶粉末放入炭化炉中，在惰性气体保护下进行烧结，碳化，得到硼、氮共掺杂石墨烯碳气凝胶吸波材料。该发明制得的硼、氮共掺杂石墨烯/碳气凝胶吸波材料具有更高的衰减因子与更好的阻抗匹配特性，能够使更多的电磁波吸收到上述材料中，并对其进行多次反射和吸收。
Preparation method and application of boron and nitrogen co-doped graphene carbon aerogel wave-absorbing material
一种硼、氮共掺杂石墨烯碳气凝胶吸波材料的制备方法及应用
YUAN LEI (author) / WANG CHAOYANG (author) / NIU GAO (author) / XU XIBIN (author) / LIU XUDONG (author) / ZHONG MINGLONG (author)
2024-08-16
Patent
Electronic Resource
Chinese
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