碳微米管的改性机制及其吸波性能的研究

The novel microwave absorbing composite with improved microwave absorbing properties was prepared using the carbon microtubes modified by ingredients doping, the magnetic nanoparticles and conductive polymer for the electromagnetic wave absorbing applications. The modified carbon microtubes films were designed and prepared by a paper filter to prepare the composite with multiple loss mechanisms by the laminated impregnated curing process. The effects of the doped and modified methods, as well as the process parameters on the microstructure and the properties of the electric, mechanical and the electromagnetic wave absorbing of the carbon microtubes and its composites were investigated. The effect mechanism of the modification and composition of the modification microtubes film on the properties was studied. The aim is to clarify its lightweight radar absorbing properties, influencing factors and the physical nature of the carbon microtubes and its modified composites; to find the key factors to regulate its composition, microstructure and properties of the carbon microtubes; to obtain the information about the application of radar absorbing materials, which will bulid the basis of theory and application of the composites with lightweight, high-strength, and the excellent microwave absorbing properties.

本项目以电磁波吸波隐身材料为应用背景，拟对碳微米管进行成分掺杂及复合改性制备新型复合吸波体，以进一步提高其吸波性能。同时采用造纸过滤法制备改性碳微米管膜，并采用叠层浸渍固化工艺制备具有多重损耗机制的吸波隐身复合材料。实验研究碳微米管的掺杂和复合改性方法，以及工艺参数对碳微米管及其复合吸波体结构和电、力学及电磁吸波性能的影响规律；研究改性碳微米管膜的改性、复合以及对材料性能的影响机制。目的是弄清碳微米管及其改性材料的轻质吸波特性、影响因素及其物理本质，找到调控碳微米管及其复合材料成分、微结构及性能的关键因素，获得该材料作为吸波隐身应用的有关信息，为推进开发轻质、高强、吸波于一体的高效吸波隐身材料奠定理论与应用基础

本项目以轻质、高性能电磁波吸收隐身材料为应用背景，分别采用碳微米管、石墨烯等轻质微纳米材料为基体，进行成分掺杂及复合改性制备新型复合吸波体，有效地提高了吸波性能。本项目还开拓性的进行了高温吸波材料的研发，制备了具有多重损耗机制的吸波隐身复合材料。实验研究了碳微米管、石墨烯的掺杂和复合改性方法，以及工艺参数对碳微米管及其复合吸波体结构和电、力学及电磁吸波性能的影响规律；研究改性碳微米管、石墨烯的改性、复合以及对材料性能的影响机制。弄清了碳微米管、石墨烯及其改性材料的轻质吸波特性、影响因素及其物理本质，找到调控碳微米管、石墨烯及其复合材料成分、微结构及性能的关键因素，获得该材料作为吸波隐身应用的有关信息，，对推进轻质、高强、吸波、高温于一体的高效吸波隐身材料奠定了理论与应用基础。