IRES: Responsive Fibers

IRES：响应纤维

• 批准号: 1259419
• 负责人: Antal Jakli
• 金额: $ 19.09万
• 依托单位: Kent State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-15 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1259419&HistoricalAwards=false
• 关键词: IRES; Responsive; Fibers

Technical AbstractThe potential technologies enabled by advanced fiber materials are countless, ranging from better body armor to artificial neurons to instantaneously drying raincoats. Electro-optical and electro-mechanical responses of the filamentous materials offer flexible and wearable displays and hold the promise for an entirely new class of artificial muscles and/or strain sensors. The goal of this project is to incorporate two important functionalities into fibers: electro-optics and electro-mechanical couplings. This will be achieved by three different approaches. (i) Incorporate liquid crystals and functional nanoparticles in electrospun polymer fibers in coaxial and tri-axial configurations; (ii) Draw stable free-standing fluid fibers from low molecular weight bent-core liquid crystals and study their mechanical and optical properties; (iii) Study both electrospun and self assembling liquid crystal polymer fibers in their pure form, with functional nanoparticles and in UV-induced cross-linked elastomer forms. Students will learn about coaxial and double coaxial electrospinning techniques, optical wave-guiding, nanoparticle preparations, and polymerization processes. They will acquire various characterization methods, such as polarizing optical microscopy, Scanning and Transmission Electron Microscopy and high-speed camera photography. Non-technical AbstractOur body is soft, stretchable and curved, but the present electronics are rigid, heavy and breakable. Making electronics flexible, stretchable, lightweight, rugged and wearable is an emerging and transformative direction for research. In this three years project 24 US students will work either in Suwon, South Korea or Magdeburg, Germany to combine liquid crystals and polymers to make responsive smart fibers. During their work abroad the students will learn cutting edge new technologies involving sophisticated experimental techniques probing fiber properties, such as stability, strength, flexibility, optical and mechanical sensitivity to electric fields. The students will also learn how to collaborate at international scientific level, will appreciate the culture of foreign countries, and will represent the greatest features of the American culture abroad. This way we will educate global scientists, who will be able to compete in the international science market.

技术摘要先进的纤维材料带来的潜在技术不计其数，从更好的防弹衣到人造神经元，再到瞬间干燥的雨衣。丝状材料的电光和机电响应提供了灵活和可穿戴的显示器，并有望成为一种全新的人工肌肉和/或应变传感器。该项目的目标是将两个重要的功能纳入光纤：电光和机电耦合。这将通过三种不同的方法来实现。(i)将液晶和功能性纳米粒子以同轴和三轴结构引入静电纺丝聚合物纤维中;（ii）从低分子量的双芯液晶中提取稳定的自支撑流体纤维并研究其机械和光学性能;（iii）研究纯形式的静电纺丝和自组装液晶聚合物纤维，以及功能性纳米粒子和紫外线诱导交联弹性体形式。 学生将学习同轴和双同轴静电纺丝技术，光波导，纳米颗粒制备和聚合过程。他们将获得各种表征方法，如偏光显微镜，扫描和透射电子显微镜和高速相机摄影。amp;#8195;非技术性摘要我们的身体是柔软的、可拉伸的和弯曲的，但目前的电子产品是刚性的、沉重的和易碎的。使电子产品具有柔性、可拉伸、重量轻、坚固耐用和可穿戴性是一个新兴的变革性研究方向。在这个为期三年的项目中，24名美国学生将在韩国的水原或德国的马格德堡工作，将联合收割机液晶和聚合物结合起来，制造出响应性智能纤维。在国外工作期间，学生将学习尖端的新技术，包括探测光纤特性的复杂实验技术，如稳定性，强度，柔韧性，对电场的光学和机械灵敏度。学生还将学习如何在国际科学水平上进行合作，欣赏外国文化，并在国外代表美国文化的最大特色。 通过这种方式，我们将教育全球科学家，他们将能够在国际科学市场上竞争。