Design and self-assembly of functional colloidal films

功能胶体薄膜的设计与自组装

• 批准号: 2131960
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2131960
• 关键词: Design; self; assembly; functional; colloidal

The properties of a material are heavily influenced by its surface and bulk structures. Colloidal self-assembly methods, using particles suspended in a solvent as the building blocks, have been recently proposed as a single-step alternative for obtaining surfaces "on demand. In this project, blends of polymer colloids and silica nanoparticles will be self-assembled into structured films. It is expected that the silica nanoparticles will move to the top surface, providing enhanced scratch resistance. Self-assembly parameters, such as solids content, size and number ratio, and wet film thickness, will be tuned to optimize the surface coverage. In the second half of the project, the silica will be incorporated inside the polymer particles, making the final film structure more durable. The functionalization of the silica nanoparticles with hydrophobic monomers will improve the water barrier properties of the final coating, which will have enhanced hardness and scratch resistance because of the presence of silica.

材料的性质在很大程度上受其表面和体相结构的影响。胶体自组装方法，使用悬浮在溶剂中的颗粒作为构建块，最近已被提出作为一个单一的步骤替代获得表面“的需求。在该项目中，聚合物胶体和二氧化硅纳米颗粒的混合物将自组装成结构化薄膜。预期二氧化硅纳米颗粒将移动到顶部表面，从而提供增强的耐刮擦性。自组装参数，如固体含量，尺寸和数量比，和湿膜厚度，将被调整，以优化表面覆盖。在项目的后半部分，二氧化硅将被掺入聚合物颗粒中，使最终的薄膜结构更加耐用。二氧化硅纳米颗粒与疏水性单体的官能化将改善最终涂层的防水性能，由于二氧化硅的存在，最终涂层将具有增强的硬度和耐刮擦性。