Interfacial Wetting and Adhesion Enhancement in Advanced Organic-Fiber/Polymer Composites through a "Nano-nectar" Methodology

通过“纳米花蜜”方法增强先进有机纤维/聚合物复合材料的界面润湿和附着力

• 批准号: 1029940
• 负责人: Weihong (Katie) Zhong
• 金额: $ 30.23万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1029940&HistoricalAwards=false
• 关键词: Interfacial; Wetting; Adhesion; Enhancement; Advanced

The research objective of this award is to establish the mechanism that is responsible for wetting and adhesion in organic fiber reinforced polymeric composite materials. Instead of applying fiber surface treatments to the organic fibers that can degrade the organic fiber properties, this methodology involves development of a reactive "nano-nectar" (a "liquid nano-reinforcement") that will lead to reactive nano-matrix materials for improved wettability to the organic fiber surface. Not a simple mixture of nanofiller and polymers, the nano-nectar based reactive nano-epoxy materials are chemically unified and will result in significantly enhanced mechanical properties for their composites. Deliverables include a nanotechnology method for the nano-nectar fabrication, mechanisms of the interfacial wetting/adhesion enhancement, and establishment of the relationships of structure and properties of composites on macro-, micro- and nano-scale levels.If successful, the results of this research will demonstrate that nanotechnology is an effective tool for improving interfacial wetting/adhesion of fiber composites. It will offer enhanced composite properties without sacrificing the inherent benefits of the organic fibers. Development of such an approach will be a viable alternative for current ineffective surface treatments for organic fibers. Success of this research will initiate new studies on surface and interface science and engineering and will contribute to the development of new lightweight high performance composites for a broad array of industry sectors including aerospace, renewable energy structures, and ground transportation systems. Organic fibers can avoid problems with carbon fibers such as corrosion with metals and importantly, this cost/energy efficient technology may provide a realistic option to the growing demand for carbon fiber composites, which are currently suffering from a global shortage as applications increase. Students with different levels including under-represented groups will benefit from lectures and seminars as well as involvement in the research.

该奖项的研究目标是建立负责有机纤维增强聚合物复合材料的润湿和粘附的机制。代替对有机纤维施加可降低有机纤维性质的纤维表面处理，该方法涉及开发反应性“纳米花蜜”（“液体纳米增强物”），其将导致反应性纳米基质材料用于改善对有机纤维表面的润湿性。不是纳米填料和聚合物的简单混合物，基于纳米花蜜的反应性纳米环氧材料是化学统一的，并将导致其复合材料的机械性能显著增强。研究内容包括纳米花蜜的制备方法、界面润湿/粘附增强的机理以及在宏观、微观和纳米尺度上建立复合材料的结构与性能之间的关系，如果成功的话，本研究的结果将证明纳米技术是改善纤维复合材料界面润湿/粘附的有效工具。它将提供增强的复合材料性能，而不牺牲有机纤维的固有优点。这种方法的发展将是一个可行的替代目前无效的有机纤维表面处理。这项研究的成功将启动对表面和界面科学与工程的新研究，并将有助于为航空航天、可再生能源结构和地面交通系统等广泛的工业部门开发新型轻质高性能复合材料。有机纤维可以避免碳纤维的问题，如金属腐蚀，重要的是，这种成本/能源效率高的技术可以为碳纤维复合材料不断增长的需求提供一个现实的选择，随着应用的增加，碳纤维复合材料目前正在遭受全球短缺。不同层次的学生，包括代表性不足的群体，将受益于讲座和研讨会，以及参与研究。