I-Corps: Closed Composites

I-Corps：封闭复合材料

• 批准号: 2232557
• 负责人: Travis Williams
• 金额: $ 5万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2232557&HistoricalAwards=false
• 关键词: Corps; Closed; Composites

The broader impact/commercial potential of this I-Corps project is the development of carbon fiber-reinforced, polymer recycling technology in the US marketplace. The lack of efficient recycling routes is a primary hurdle to the use of carbon fiber-reinforced polymers in automotive and other large-scale manufacturing applications. Such recycled fibers represent a new class of feedstock for composite manufacturers as their surface chemistry is unaffected by the recycling process and their native length and architecture is preserved, maximizing their physical properties and maintaining their performance. This technology may accelerate the acceptance of carbon fiber composites as a ‘green’ material by upcycling composite waste from the aerospace sector for use in automotive, sporting goods, and wind blade industries. This I-Corps project is based on the development of a novel technology to remanufacture carbon fiber-reinforced polymer composites from post-consumer waste into carbon fiber sheets and resin raw materials recovered through a recycling process. The proposed technology incorporates a homogeneous chemical recycling reaction which utilizes oxygen as the terminal oxidant to oxidize key carbon-nitrogen bonds formed during the thermoset curing reaction of the polymer. As a result, woven carbon fiber sheets are recovered, still in their native architecture, with minimal damage to their surface chemistries. These recycled fiber weaves retain their physical properties and may enable myriad remanufacturing possibilities.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.

该 I-Corps 项目的更广泛影响/商业潜力是在美国市场开发碳纤维增强聚合物回收技术。缺乏有效的回收路线是碳纤维增强聚合物在汽车中使用的主要障碍。这种回收纤维代表了复合材料制造商的新型原料，因为它们的表面化学性质不受回收过程的影响，并且保留了它们的天然长度和结构，从而最大限度地提高了它们的物理性能并保持了它们的性能。通过将航空航天领域的复合材料废料升级改造用于汽车、体育用品和风力叶片行业，加速碳纤维复合材料作为“绿色”材料的接受。该 I-Corps 项目基于新技术再制造的开发。该技术采用均相化学回收反应，将消费后废物转化为碳纤维片材和树脂原材料，利用氧气作为终端氧化剂进行氧化。在聚合物的热固性固化反应过程中形成的关键碳-氮键，因此，编织碳纤维片材得以恢复，仍保持其原有结构，对其表面化学成分的损害最小，这些回收的纤维编织物保留了其物理性能。实现无数再制造的可能性。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。