基于金属氧化物/氧化石墨烯层层自组装构筑柔性纤维复合材料及其功能性研究

Multifunctional fabrics modified with nanomaterials possess wide applications in functional apparel, medical, personal protective, intelligent monitoring fields owing to its combination properties of inorganic, organic and nanoscale features. In this project, flexible fibrous material is chosen as substrate while transition metal oxides and graphene oxide are employed as functional materials. According to layer-by-layer self-assembly technique, the LbL self-assembled flexible fibrous materials with various components and structures are prepared via controlling the interfaces between self-assembled nano-layer and substrate, interlayer between self-assembled layers respectively. The micro-structure, interface fabrication and functional properties of self-assembled flexible fibrous materials are investigated. Furthermore, some new performances resulting from the interface between transition metal oxides and graphene oxide are elucidated. The mechanism of interfacial interaction and the relationship between micro-structure and synergistic properties in this self-assembled system are also specified investigated to clarify some problems, structure control, well dispersion, stable combination, multi-functional properties, during preparation procedure. The system of controllable preparation, interface recombination and property improvement in the self-assembled fabric is established and could support theoretical foundation and experimental basis for the applications of multifunctional self-assembled flexible fibrous materials.

以纳米材料为功能相的多元功能柔性纤维复合材料综合了无机、有机和纳米材料的优良特性，在功能服装、生物医用、个体防护等领域具有广阔的应用前景。本项目以柔性纤维材料为基体，金属氧化物和氧化石墨烯为功能相；采用层层静电自组装方法与技术，通过控制纳米自组装膜与柔性纤维材料之间、纳米自组装膜层-层之间的界面复合制备不同组分和结构的自组装柔性纤维复合材料。系统研究自组装柔性纤维复合材料的微结构、界面构筑和功能特性，探索金属氧化物/氧化石墨烯界面耦合新效应；阐明纳米自组装复合体系的界面复合机制，揭示金属氧化物/氧化石墨烯自组装柔性纤维复合材料功能特性协同提升规律，以解决自组装制备中结构可控、均匀分散、牢固复合、多元功能的问题。逐步建立基于金属氧化物/氧化石墨烯自组装柔性纤维复合材料的有序构筑、界面复合和性能提升的一体化研究体系，为低成本、多元功能自组装柔性纤维复合材料的制备及其应用提供理论基础和实验依据。

以纳米材料为功能相的多元功能柔性纤维复合材料综合了无机、有机和纳米材料的优良特性，在功能服装、生物医用、个体防护等领域具有广阔的应用前景。本项目以柔性纤维材料为基体，金属氧化物、氧化石墨烯及石墨烯为功能相；采用层层静电自组装方法结合界面接枝技术，通过控制纳米膜与柔性纤维材料之间、纳米膜层-层之间的界面复合制备了不同组分和结构的柔性纤维复合材料。系统的表征了功能柔性复合材料的微观结构及功能特性，揭示了金属氧化物/氧化石烯功能柔性纤维复合材料的功能特性协同影响因素；阐明了纳米膜与柔性纤维材料基体之间、纳米膜层-层之间的界面复合机制；建立层层自组装功能柔性纤维复合材料简便、快速、高效、绿色的制备方法，为低成本、多元功能纤维复合材料开发提供理论依据和实验依据。同时，在功能性金属氧化物/石墨烯修饰改性纺织新材料等领域开展了系列相关性研究。到目前为止，在金属氧化物/氧化石墨烯纳米功能粒子制备、层层自组装功能柔性纤维复合材料、功能性石墨烯修饰改性纺织新材料等领域发表项目标注SCI 论文28 篇，授权发明专利9 项。