Fabrication of Antimicrobial Textiles by Roll-to-Roll Electroless Plating

卷对卷化学镀制备抗菌纺织品

• 批准号: 2114052
• 负责人: Lili Cai
• 金额: $ 30.68万
• 依托单位: University of Illinois at Urbana-Champaign
• 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: 2021-06-01 至 2025-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2114052&HistoricalAwards=false
• 关键词: Fabrication; Antimicrobial; Textiles; Roll; Electroless

Recent technological advancements in textile manufacturing has focused on the production of various functional and smart textiles, among which antimicrobial textiles have found a niche. Textiles are often substrates susceptible to microbial growth under appropriate temperature, humidity, and nutrient conditions. Therefore, antimicrobial textiles have become a necessity, especially for critical applications such as personal protective equipment or PPE, sportwear and air filters. However, current antimicrobial agents and manufacturing technologies suffer from one or more key limitations, for example, low antimicrobial activity, poor durability, and lack of manufacturing scalability. This grant supports fundamental research to bridge the knowledge gap in scalable manufacturing of novel antimicrobial textiles with high activity and durability. This project establishes a new paradigm for the economical production of antimicrobial personal protective equipment and air filters in response to the current COVID-19 pandemic and future public health crises. This project provides transferable knowledge for the manufacturing of other functional textiles. The results from this project promote the progress of science and benefit the U.S. textile industry, economy, national health and welfare. Furthermore, this multidisciplinary project involves material science, chemistry, nanotechnology and manufacturing science and provides research opportunities for women and underrepresented minority students. The integrated education and outreach activities promote engineering education for K-12, undergraduate and graduate students.Silver nanoparticles have been researched as promising antimicrobial agents for protective textile applications. However, to realize practical low-cost and large-scale manufacturing of silver nanoparticle-functionalized textiles, fundamental understanding is still lacking on a series of key factors, including the heterogeneous interactions between the nanoparticle and fabrics, the engineering of the nanoparticle properties, and the manufacturing process that allows for mass production. To gain such basic knowledge, this project performs fundamental investigations into a continuous and scalable production process toward the manufacturing of silver nanoparticle-decorated textiles, by integrating electroless plating of silver nanoparticles with roll-to-roll manufacturing. The research generates new knowledge in (1) interfacial nucleation of silver nanoparticles assisted with biocompatible molecules such as polydopamine, which functions as an adhesive and reducing agent to facilitate the growth of the silver nanoparticles during electroless plating on different textile surfaces; (2) the growth mechanisms of silver nanoparticles on textiles for optimized antimicrobial potency; and (3) how fabric materials and structures impact the roll-to-roll coating quality. Research tasks involve systematic design of experiments for process construction, crystal growth analysis, materials synthesis and characterization, and antimicrobial performance testing.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.

纺织品制造业的最新技术进步集中在生产各种功能和智能纺织品上，其中抗菌纺织品在这些功能和智能纺织品中发现了一个利基市场。纺织品通常是在适当温度，湿度和营养条件下易受微生物生长的底物。因此，抗菌纺织品已成为必要，特别是对于关键应用，例如个人防护设备或PPE，运动服和空气过滤器。但是，当前的抗菌剂和制造技术受到一个或多个关键局限性，例如，抗菌活性低，耐用性差和缺乏制造可伸缩性。该赠款支持基础研究，以弥合具有高活性和耐用性的新型抗菌纺织品的可扩展制造的知识差距。该项目为经济生产抗菌个人保护设备和空气过滤器建立了新的范式，以应对当前的Covid-19大流行和未来的公共卫生危机。该项目为制造其他功能纺织品提供了可转移的知识。该项目的结果促进了科学的进步，并使美国纺织业，经济，国家健康和福利受益。此外，这个多学科项目涉及材料科学，化学，纳米技术和制造科学，并为妇女和人为代表性不足的少数族裔学生提供研究机会。综合教育和外展活动促进了针对K-12，本科和研究生的工程教育。Silver纳米颗粒已被研究为有前途的抗菌剂，用于保护性纺织品应用。但是，为了实现银纳米颗粒功能化纺织品的实践低成本和大规模制造，仍然缺乏一系列关键因素的基本理解，包括纳米粒子和织物之间的异质相互作用，纳米颗粒物业的工程以及允许大量生产的制造过程。为了获得这样的基本知识，该项目通过将银纳米颗粒的电镀层与滚动制造的电气板整合在一起，对制造银纳米颗粒装饰的纺织品的连续和可扩展生产过程进行基本研究。该研究在（1）银纳米颗粒的界面成核中产生了新知识，该纳米颗粒有助于生物相容性分子，例如多巴胺，该分子是一种粘合剂和还原剂，可促进在不同纺织表面上电填充时银纳米颗粒的生长； （2）纺织品上银纳米颗粒的生长机制，以优化抗菌效力； （3）织物材料和结构如何影响卷到滚动涂料质量。研究任务涉及用于过程构建，晶体增长分析，材料合成和表征以及抗菌性能测试的实验设计的系统设计。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响审查标准来通过评估来获得支持的。