CF/GN/CNT全碳功能体网络的构建及其多功能复合材料

To meet the requirments of high conductivity and electromagnetic shielding performance, high mechanical properties of lightweight multifunctional composites for spatial structure platforms, aircraft, and other important equipment , carbon nanotubes,CNT, and grapheme, GN, were introduced in carbon fiber reinforcing composite material. By the mutual dispersion effect between CNT and GN, theri high degree of dispersion was achieved , and the constitute CF/GN/CNT function body network was obtain, which will greatly improve the current transmission, electromagnetic shielding and other functions .Based on the research on the GN/CNT dispersion behavior mechanism in particular resin solution, and CF/GN/CNT composites technology , the relationship between the material organizational structure with each component characteristics and process of the parameter were established. .Based on the work on the carrier transport mechanism, the interaction mechanism of microwaves with the carbon materials of the CF/GN/CNT network, and failure mechanism of the composites, the relationship between a composite material electrical, magnetic and mechanical properties of its components, organization, structure was created. This project develops the CF/GN/CNT multifunctional composites and established the base for its the applications in aerospace.

面向空间结构平台、飞行器等重要装备对兼具高导电性、高电磁屏蔽性能、高力学性能的轻质多功能复合材料的需求，在碳纤维复合材料中同时引入碳纳米管与石墨烯，利用它们的"互分散"效应，实现其在碳纤维间的高度分散排布，并与碳纤维一起构成"CF/GN/CNT"全碳材料功能体网络，将实现电流传输、电磁屏蔽等功能的极大提升。通过在特定树脂溶液介质中GN/CNT分散行为调控机制研究，获得高度分散的GN/CNT体系；通过CF/GN/CNT复合材料的制备技术基础研究，建立材料组织结构与各组元特性及过程参数的关系；通过对复合材料中CF/GN/CNT功能体网络的载流子传输机制、与微波的交互作用机制，以及典型力学载荷下复合材料失效机制的研究，建立复合材料电、磁性能及力学性能与其组份、组织、结构的关系。本项目发展的新型CF/GN/CNT多功能复合材料的设计、制备与调控理论与方法，将为其在空天装备关键材料中的应用建立基础。

针对空间结构平台、空天飞行器等重要装备对兼具高导电性、高电磁屏蔽性能、高力学性能的轻质多功能复合材料的需求，在碳纤维复合材料中引入具不同维度特性的碳纳米材料——碳纳米管、石墨烯，构建由三类碳功能体构成的CF/GN/CNT三维网络，在细观尺度上对碳纤维间隙“空白区域”进行电磁屏蔽功能填补，并促进载流子传输。. 利用GN/CNT“互分散”效应，进行在特定树脂/溶剂介质中的分散体系形态与调控机制研究，实现了GN/CNT良好分散；进行了含GN/CNT的复合树脂流变行为、固化行为研究，并基本建立了CF/GN/CNT复合材料的原材料与制备过程参数与材料组织结构的关系；进行了复合材料中载流子传输机制、功能体与微波的交互作用机制、以及典型力学载荷下的失效机制的研究，并基本建立了复合材料导电性、介电性、电磁屏蔽性能及力学性能与组织结构及组份的关系；发展新型CF/GN/CNT多功能复合材料的设计、制备与调控理论与方法，为其在空天装备关键材料中的应用建立了基础。