Thippanna Varunkumar, Ramanathan Arunachalam, Ravichandran Dharneedar, Chavali Abhinav, Sundaravadivelan Barath, Saji Kumar Abhishek, Patil Dhanush, Zhu Yuxiang, Buch Rajesh, Al-Ejji Maryam, Hassan Mohammad K, R Bick Lindsay, Sobczak Martin Taylor, Song Kenan
Manufacturing Engineering, School of Manufacturing Systems and Networks (MSN), Ira A. Fulton Schools of Engineering, Arizona State University (ASU), Mesa, Arizona 85212, United States.
Mechanical Engineering, College of Engineering, University of Georgia (UGA), 302 E. Campus Rd., Athens ,Georgia30602,United States.
ACS Sustain Chem Eng. 2024 Feb 13;12(8):3243-3255. doi: 10.1021/acssuschemeng.3c07484. eCollection 2024 Feb 26.
Plastics' long degradation time and their role in adding millions of metric tons of plastic waste to our oceans annually present an acute environmental challenge. Handling end-of-life waste from wind turbine blades (WTBs) is equally pressing. Currently, WTB waste often finds its way into landfills, emphasizing the need for recycling and sustainable solutions. Mechanical recycling of composite WTB presents an avenue for the recovery of glass fibers (GF) for repurposing as fillers or reinforcements. The resulting composite materials exhibit improved properties compared to the pure PAN polymer. Through the employment of the dry-jet wet spinning technique, we have successfully manufactured PAN/GF coaxial-layered fibers with a 0.1 wt % GF content in the middle layer. These fibers demonstrate enhanced mechanical properties and a lightweight nature. Most notably, the composite fiber demonstrates a significant 24.4% increase in strength and a 17.7% increase in modulus. These fibers hold vast potential for various industrial applications, particularly in the production of structural components (e.g., electric vehicles), contributing to enhanced performance and energy efficiency.
塑料降解时间长，且每年向海洋中添加数百万吨塑料垃圾，这带来了严峻的环境挑战。处理风力涡轮机叶片（WTB）的报废垃圾同样紧迫。目前，WTB垃圾常常被填埋，这凸显了回收利用和可持续解决方案的必要性。复合WTB的机械回收为回收玻璃纤维（GF）提供了一条途径，这些玻璃纤维可重新用作填料或增强材料。与纯PAN聚合物相比，所得复合材料表现出更好的性能。通过采用干喷湿纺技术，我们成功制造出了中间层GF含量为0.1 wt%的PAN/GF同轴层状纤维。这些纤维展现出增强的机械性能和轻质特性。最值得注意的是，复合纤维的强度显著提高了24.4%，模量提高了17.7%。这些纤维在各种工业应用中具有巨大潜力，特别是在结构部件（如电动汽车）的生产中，有助于提高性能和能源效率。
