PFI-TT: Fabrication of color-shifting coatings containing reflective microstructures

PFI-TT：含有反射微结构的变色涂层的制造

• 批准号: 2016420
• 负责人: Lauren Zarzar
• 金额: $ 25万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-15 至 2023-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2016420&HistoricalAwards=false
• 关键词: PFI; TT; Fabrication; color; shifting

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is to design, fabricate, and evaluate the properties of coatings that change color when viewed at different angles or under different lighting conditions for technological and aesthetic use. Color-shifting coatings have commercial applications as diverse as security, anti-counterfeiting, decorative paints, cosmetics, packaging, and advertising. Current color-shifting coatings technologies rely on very small nanoscale structures, which are challenging and expensive to produce. Current technologies also provide little control over the specific colors reflected and the angles to which those colors are reflected. More customizable color-shifting coatings that use larger microscale structures may enhance the distinctiveness of security features, provide new avenues for self-expression, and reduce cost. Success of this project may enable the design of the microstructures to create customized, desired color palettes that can be fabricated by scalable methods. The proposed technology will also be incorporated into an entrepreneurial innovation course at Penn State as a team-based case study to provide undergraduates with hands-on experiences developing a commercialization plan for a new technological invention.The proposed project aims to exploit, for the purposes of coatings design, the color generation that occurs when light reflects multiple times within microstructures. Existing color-shifting materials, such as diffraction gratings or thin films, create optical interference through the use of periodic nanostructures. By using microstructures that are orders of magnitude larger and easier to fabricate in various geometries, there is an opportunity for greater customization of the reflected colors. Objectives of this project include the fabrication of microstructure arrays over large areas, generation of nickel metal molds that can be used for polymer imprinting of microstructures, evaluation of thermoplastic polymer embossing and scalable methods for microstructure film production, and evaluation of the prototype film optical properties as benchmarked against current competitor coatings. Partnerships to aid manufacturing scalability will be pursued. Customer discovery will be conducted to aid in evaluation of commercial potential and target market applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种伙伴关系对创新 - 技术翻译（PFI -TT）项目的更广泛的影响/商业潜力是设计，制造和评估以不同角度或在不同的照明条件下查看颜色的涂料的特性，以用于技术和美学使用。颜色转换涂料的商业应用包括安全性，反爆炸，装饰涂料，化妆品，包装和广告的多样化。当前的变色涂料技术依赖于很小的纳米级结构，这些结构具有挑战性且生产昂贵。 当前的技术还几乎没有控制所反映的特定颜色和这些颜色反映的角度的控制。使用较大的显微镜结构的更可定制的颜色转移涂层可能会增强安全功能的独特性，为自我表达提供新的途径，并降低成本。该项目的成功可能使微观结构的设计能够创建可以通过可扩展方法制造的自定义的，所需的调色板。拟议的技术还将被纳入宾夕法尼亚州立大学的企业家创新课程中，作为一项基于团队的案例研究，以为本科生提供动手实践的体验，为新技术发明制定商业化计划。拟议的项目旨在利用涂料设计的目的来利用涂料设计的目的，即在光学中反映多个时间的颜色产生。现有的变色材料（例如衍射光栅或薄膜）通过使用周期性纳米结构而产生光学干扰。通过使用更大且更易于在各种几何形状上制造的数量级的微观结构，就有机会对反射颜色进行更大的自定义。该项目的目的包括在大面积上制造微观结构阵列，可用于微观结构的聚合物烙印的镍金属模具的产生，评估热塑性聚合物压花以及微观结构膜的可扩展方法，以及对原型膜的评估，以对付当前竞争者的原型膜，以评估原型膜。将追求帮助制造可伸缩性的合作伙伴关系。将进行客户发现以帮助评估商业潜力和目标市场应用。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，被认为值得通过评估来获得支持。