SBIR Phase I: Vapor Deposition for Non-Metallic Conductive Yarns

SBIR 第一阶段：非金属导电纱线的气相沉积

• 批准号: 2026077
• 负责人: Juan Woodroffe
• 金额: $ 25.52万
• 依托单位: SOLIYARN, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2021-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2026077&HistoricalAwards=false
• 关键词: SBIR; Phase; Vapor; Deposition; Non

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project is to develop the next generation of wearables. Applications include heated garments, biosensors, textile supercapacitors, and textile energy harvesters. Other conductive yarns that exist to date are either non-textile (metal) or heavily-modified-textile materials (carbon fibers, metal-doped and metal-plated fibers, carbon nanotube-doped yarns, conductive ink-dipped yarns) that often do not look, feel, or behave like conventional textile materials. This project will deliver launderable, mechanically-rugged, encapsulated conductive yarns that can be seamlessly incorporated into garments and other functional textiles. These yarns are unaffected by strains such as movement, stretching, bending, and physical wear in a garment. This Small Business Innovation Research (SBIR) Phase I project develops conformal, uniform, and robust textiles based on conductive yarns using a process of oxidative chemical vapor deposition. The project uses the conductive flexible polymers to form coatings in the vapor phase under low vacuum. The vapor allows for high conformality to the yarn's rough surface and uniform layer thickness across the circumference, both due to the mean free path of the monomers and oligomers after reaching the yarn surface during deposition. The low vacuum environment can be used to tune these parameters to improve polymerization in the lateral direction, rather than outward from the surface, as occurs in other processes. In turn, the coatings' conformality and uniformity leaves the yarn largely unaffected only marginally impacts its weight. Furthermore, with the vapor phase reaction, the process offers excellent chemical and physical adhesion unparalleled even with solution methods, as observed by conductivity unaffected by many wash cycles and significant wear.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.

这个小型企业创新研究（SBIR）第一阶段项目的更广泛的影响/商业潜力是开发下一代可穿戴设备。应用包括加热服装、生物传感器、纺织品超级电容器和纺织品能量采集器。迄今为止存在的其他导电纱线是非纺织品（金属）或重改性纺织品材料（碳纤维，金属掺杂和镀金属纤维，碳纳米管掺杂纱线，导电油墨浸渍纱线），其通常看起来，感觉或表现不像传统的纺织品材料。 该项目将提供可洗涤、机械坚固、封装的导电纱线，可无缝地融入服装和其他功能性纺织品中。这些纱线不受服装中的运动、拉伸、弯曲和物理磨损等应变的影响。这个小企业创新研究（SBIR）第一阶段项目开发了基于导电纱线的保形，均匀和坚固的纺织品，使用氧化化学气相沉积工艺。该项目使用导电柔性聚合物在低真空下形成气相涂层。蒸汽允许与纱线的粗糙表面的高度共形性和跨圆周的均匀层厚度，这两者都是由于在沉积期间单体和低聚物在到达纱线表面之后的平均自由程。低真空环境可用于调节这些参数以改善横向方向上的聚合，而不是如在其他工艺中发生的从表面向外的聚合。反过来，涂层的保形性和均匀性使纱线在很大程度上不受影响，仅略微影响其重量。此外，通过气相反应，该工艺提供了优异的化学和物理附着力，即使是溶液法也无法比拟，因为电导率不受多次洗涤循环和严重磨损的影响。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。