High Throughput Manufacturing of Carbide Nanowire-Carbon Microfiber Hybrid Structures and Polymer Composites from Cotton Textiles

利用棉纺织品高通量制造碳化物纳米线-碳微纤维混合结构和聚合物复合材料

• 批准号: 1418696
• 负责人: Xiaodong Li
• 金额: $ 17.06万
• 依托单位: University of Virginia Main Campus
• 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: 2013-09-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1418696&HistoricalAwards=false
• 关键词: Throughput; Manufacturing; Carbide; Nanowire; Carbon

This grant provides funding for synthesizing large quantities of radially-aligned high-strength carbide nanowires using cotton textiles as both the template and carbon source. Nanowires are of great interest for use as reinforcements in polymer matrix composites but are not in widespread use today due to manufacturing challenges. The primary goal of this work is to solve the two most critical limitations in nanocomposite manufacturing, i.e., poor dispersion of the reinforcements and low throughput. The novelty of the approach is the controlled dispersion of the nanowires "by design" as the result of growing the nanowires on a substrate that is both the template and carbon source. This research program will study both the mechanisms of formation for the nanowires on the cotton substrate as well as study the reinforcing mechanisms of the carbide nanowire-carbon microfiber hybrid structures in composite structures. High throughput manufacturing of laminated polymer nanocomposites will be explored through specially designed spin casting and sheet molding processes. If successful, the results of this research will contribute to a better understanding of the manufacturing-structure-property-function of carbide nanowire-carbon microfiber hybrid structures and their reinforced polymer nanocomposites. This research has the potential to change the conventional concepts for nano-reinforcement dispersion and to significantly impact existing nanomaterials manufacturing technologies. The research advances made through this project will generate new knowledge that will be introduced to undergraduate and graduate students through existing courses and the research activities will be used as an educational platform for students at all levels to learn about materials processing and manufacturing.

该赠款为合成大量辐射辐射高强度碳化物纳米线的资金提供了资金，既是模板和碳源。纳米线是在聚合物基质复合材料中用作增强材料的极大兴趣，但由于制造挑战，如今并未广泛使用。这项工作的主要目的是解决纳米复合制造中的两个最关键局限性，即增援部队的分散不良和低通量。该方法的新颖性是纳米线“通过设计”的受控分散体，这是由于在模板和碳源的基板上种植纳米线的结果。该研究计划将研究棉质底物上纳米线的形成机理，以及研究复合结构中碳化物纳米纤维 - 碳纤维微生物杂交结构的增强机制。层压聚合物纳米复合材料的高吞吐量生产将通过专门设计的旋转铸造和板材成型工艺进行探索。如果成功的话，这项研究的结果将有助于更好地理解碳化物纳米 - 碳纤维微纤维杂种结构及其增强的聚合物纳米复合材料的制造结构 - 特性功能。这项研究有可能改变纳米增强分散的常规概念，并显着影响现有的纳米材料制造技术。通过该项目做出的研究进展将产生新知识，通过现有课程将向本科和研究生介绍，研究活动将被用作各级学生的教育平台，以了解材料处理和制造。