航空材料学报2026，Vol.46Issue(4)：52-63,12.DOI:10.11868/j.issn.1005-5053.2025.000142
RGO/CBNNTs复合材料的设计及微波吸收性能
Preparation and microwave absorption properties of RGO/CBNNTs composite
摘要
Abstract
Graphene oxide(GO)is used as the substrate material and MgCl2 is used as the catalyst.Under a mixed atmosphere of N2 and NH3,GO is converted into reduced graphene oxide(RGO)by chemical vapor deposition.Meanwhile,collapse boron nitride nanotubes(CBNNTs)are grown on its surface to synthesize RGO/CBNNTs composite materials.By controlling the reaction temperature(800,850,900℃),the generation of by-product MgF2 can be effectively inhibited and the growth of the inner diameter of CBNNTs tube wall can be controlled,thereby preparing three types of RGO/CBNNTs composite materials.The wave absorption performance of RGO/CBNNTs composite in the 2-18 GHz frequency band is investigated by attaching CBNNTs of different pipe diameters to the surface of RGO.Among them,the absorption performance of RGO/CBNTS-900 is the best.According to the test data,at 13.36 GHz,the minimum reflection loss(RLmin)of RGO/CBNTS-900 reaches-49.17 dB,and the matching thickness is only 1.59 mm.All the above parameters are stronger than those of RGO.Due to the high electrical conductivity and large dielectric constant of RGO,it is extremely prone to causing electromagnetic impedance mismatch problems.The introduction of CBNNTs has reduced the ε'of RGO from 7.7 to 5.1,alleviating the problems of high electrical conductivity and large dielectric constant of RGO,and improving the microwave absorption performance.This method provides a new idea for the application of RGO materials in the field of microwave absorption.关键词
还原氧化石墨烯/崩溃型氮化硼纳米管/化学气相沉积法/微波吸收性能Key words
reduced graphene oxide/collapsed boron nitride nanotube/chemical vapor deposition/microwave absorption perform-ance分类
通用工业技术引用本文复制引用
胡琦,徐晨皓,齐存康,华玉龙,张静,王月敏..RGO/CBNNTs复合材料的设计及微波吸收性能[J].航空材料学报,2026,46(4):52-63,12.基金项目
天津市教委高等教育科技发展基金(2023KJ244) （2023KJ244）
