I-Corps: Nanocellulose Filaments for Thermal Management in Apparel Fabrics

I-Corps：用于服装面料热管理的纳米纤维素长丝

• 批准号: 2120125
• 负责人: Jihua Gou
• 金额: $ 5万
• 依托单位: The University of Central Florida Board of Trustees
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-02-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2120125&HistoricalAwards=false
• 关键词: Corps; Nanocellulose; Filaments; Thermal; Management

The broader impact/commercial potential of this I-Corps project is the development of nanocellulose filaments for a variety of thermal management applications. With high thermal conductivity, the filaments (threads) may be used to develop thermally conductive functional apparel fabrics potentially used for athleisure and industrial apparel brands. Currently, end-consumers such as athletes, workout enthusiasts, fire fighters, and soldiers suffer from insufficient thermoregulation of apparel fabrics. The demand for printed circuit board products has increased exponentially due to the rapid development of higher performance computers and smart electronic devices. The filaments also may be integrated into the manufacturing process of printed circuit boards with capabilities of directional cooling. The societal impact of this filament technology is its sustainability. Currently, 60% of materials in textiles are derived from petro-chemicals. However, the proposed technology is mainly converted from sustainable plant biomass so the starting material is more sustainably sourced.This I-Corps project is based on the development of nanocellulose filaments with high thermal conductivity. The proposed technology consists of cellulose nanofibers and boron nitride nanotubes that are uniformly dispersed through the microfluidizer process. The filaments are fabricated via wet spinning of the suspension of cellulose nanofibers and boron nitride nanotubes in a coagulation bath. The high thermal conductivity of the filaments is attributed to high intrinsic thermal conductivities of boron nitride nanotubes and cellulose nanofibers as well as low interfacial thermal resistance due to the strong interaction between them.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.

这个I-Corps项目更广泛的影响/商业潜力是开发用于各种热管理应用的纳米纤维素长丝。具有高导热性的长丝（线）可用于开发导热功能性服装织物，其潜在地用于运动员和工业服装品牌。 目前，诸如运动员、健身爱好者、消防员和士兵的终端消费者遭受服装织物的温度调节不足。由于更高性能的计算机和智能电子设备的快速发展，对印刷电路板产品的需求呈指数级增长。细丝还可以集成到具有定向冷却能力的印刷电路板的制造过程中。这种长丝技术的社会影响是其可持续性。目前，纺织品中60%的材料来自石化产品。然而，拟议的技术主要是从可持续的植物生物质转化，因此起始材料更可持续地来源。这个I-Corps项目是基于开发具有高导热性的纳米纤维素长丝。所提出的技术由纤维素纳米纤维和氮化硼纳米管组成，它们通过微流化器过程均匀分散。通过在凝固浴中湿纺纤维素纳米纤维和氮化硼纳米管的悬浮液来制造长丝。这种纤维的高导热性归功于氮化硼纳米管和纤维素纳米纤维的高固有导热性，以及它们之间强相互作用导致的低界面热阻。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。