多功能耦合的彩色碳纤维的仿生构建与微结构调控

The chemical inertness interface is the crucial for the development of multicolored carbon fiber. Inspired by the biomimetic structure-color formation, atomic layer deposition method was applied to construct the amorphous photonic films with different scales on the surface of carbon fiber/fabric. The formation mechanism and the stability-affected factors of amorphous photonic film structure were systematically studied. In order to achieve high accurate and controllable surface thickness, composition and structure of deposited functional films, ALD/MLD were used together to co-dope and modify the surface. The temperature, reaction pressure and time for the fabrication of amorphous photon film were modulated to tune the photonic bandgap thus improving the chromophore effect of the amorphous photonic film. And then high level and applicable structure-colored carbon fiber can be fabricated. We expect to explore the key factors and internal laws of structural color, formation on colorful carbon fiber/fabric, reveal the structure construction and modulation mechanism of the functional film on carbon fiber/fabric, establish the scientific model describing the relationship between the functional films with microscale-coupled structure at different scales, and provide theoretical guidance for the preparation of colorful functional fiber bearing flexibility, durability and colorful attractiveness.

惰性的化学界面是制约彩色碳纤维发展的关键。本项目从仿生结构生色的思路出发，采用原子层沉积技术在碳纤维/织物表面构建尺度各异的鳞片式排列微观耦合结构光学性能非晶光子薄膜，探究非晶光子薄膜形成机制及影响非晶光子薄膜结构稳定性的关键因素，并进一步利用ALD/MLD协同掺杂及表面修饰，为非晶TiO2薄膜在碳纤维织物表面的厚度、成分和结构高度精准可控生长提供一定的理论基础。通过控制影响非晶光子薄膜的温度、压强以及时间等因素调控低阶光子带隙，提高非晶光子薄膜的生色效应，制得具有较高水平的，可实际应用的结构生色碳纤维及其织物。期望通过本项目研究，探明实现彩色碳纤维/织物结构生色的关键因素和内在规律，揭示碳纤维/织物表面功能薄膜结构构建和调控机理，建立尺度各异的鳞片式排列微观耦合结构光学性能功能薄膜与其生色效应关系的科学模型，为制备既保持柔性和耐用性又具有绚丽多彩生色效果的彩功能纤维材料提供理论指导

从仿生结构生色的思路出发，采用原子层沉积技术在碳纤维/织物表面构建尺度各异的鳞片式排列微观耦合结构光学性能非晶光子薄膜，揭示了非晶光子薄膜形成机制及影响非晶光子薄膜结构稳定性的关键因素，制得具有较高水平的，可实际应用的结构生色碳纤维及其织物，并探索了工业放大的普通化学结构生色的方法和策略。在此基础上将其进一步拓展到其他织物，如棉织物等，实现了系列新型功能纺织品，如抗菌纺织品，自清洁耐污纺织品等开发。同时，基于结构生色的环保无污染特性，探索开发了有机溶剂-水复合染色体系，在实现其高色度染色的同时减少了对水体的污染，极大的践行了“碳中和”的目标。本项目发表SCI收录论文18篇，申请专利9项，培养博士研究生6人，培养硕士研究生5人。