各向异性银纳米粒子自组装的纤维结构生色及其光谱特性与调控

项目名称： 各向异性银纳米粒子自组装的纤维结构生色及其光谱特性与调控

项目编号： No.51273153

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 王训该

作者单位： 武汉纺织大学

项目金额： 80万元

中文摘要： 不同形状和大小的各向异性银纳米粒子由于其局域表面等离子体共振（LSPR）效应而呈现艳丽、丰富的色彩，可作纤维结构生色之用。通过改变各向异性银纳米粒子的合成条件，掌握粒子形貌调控规律及其光谱特性；研究银纳米粒子的表面修饰以赋予其特定的电荷或活性基团并提高其稳定性，同时对纤维进行修饰使其具有和银纳米粒子相反的电荷及释出特征性基团，进而揭示银纳米粒子与纤维大分子间建立库伦力、氢键及共价键结合的条件和银纳米粒子在纤维上自组装结构生色的机制；通过修饰剂、修饰参数对银纳米粒子和纤维修饰产物结构性能的影响及银纳米粒子向纤维电荷位点定向自组装动力学、银纳米粒子在纤维上自组装的聚集形态等的研究，阐明实现对银纳米粒子在纤维上自组装的吸附速率、结构生色均匀性、纤维光谱特性及色相明度等颜色指标调控的规律性，探明各向异性银纳米粒子复配自组装纤维结构生色的光谱特性，为进一步开发纤维银纳米粒子结构颜色技术奠定基础。

中文关键词： 纤维；银纳米粒子；结构生色；自组装；光谱特性

英文摘要： Anisotropic silver nanoparticles can be applied to color fibers because of vivid colors from their localized surface plasmon resonance (LSPR) effect. Insights into the shape control mechanism of anisotropic silver nanoparticles and their spectroscopic properties will be gained by adjusting the synthesis conditions of silver nanoparticles. Surface modification of the silver nanoparticles will be performed to endow the particles with certain charges/active groups and improve the stability of silver nanoparticles. The surface of fibers will also be modified to carry the opposite charge to silver nanoparticles or expose certain characteristic groups. Interfacial bonding between silver nanoparticles and fibers, including Coulomb force, hydrogen bond and covalent bond, will be investigated.The mechanism of coloration based on orientational self-assembly of silver nanoparticles on fibers will be elucidated. Modifying agents and modification parameters in the reaction system will be researched to clarify their influence on silver nanoparticle modified fibers and the kinetics of orientational self-assembly of silver nanoparticles on fibers. Furthermore, the coloration process will be used to control adsorption rate of silver nanoparticles,uniformity of coloration, spectroscopic properties of modified fibers and color ind

英文关键词： fiber；silver nanoparticle；structural coloration；self-assembly；spectral properties