Coaxial Layered Fiber Spinning for Wind Turbine Blade Recycling
Coaxial Layered Fiber Spinning for Wind Turbine Blade Recycling
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DOI：
10.1021/acssuschemeng.3c07484
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发表时间：
2024-02-13
影响因子：
8.4
通讯作者：
Song，Kenan
中科院分区：
文献类型：
--
作者：
Thippanna，Varunkumar;Ramanathan，Arunachalam;Song，Kenan
塑料的长期降解时间及其在每年向我们的海洋增加数百万公吨塑料废物中的作用构成了一个严峻的环境挑战。处理来自风力涡轮机叶片（WTB）的报废废物同样紧迫。目前，WTB废物经常进入垃圾填埋场，强调需要回收和可持续解决方案。复合材料WTB的机械回收为回收玻璃纤维（GF）重新用作填料或增强材料提供了一条途径。与纯PAN聚合物相比，所得复合材料表现出改善的性能。采用干喷湿纺技术，成功地制备了中间层含0.1wt%GF的PAN/GF同轴层状纤维。这些纤维表现出增强的机械性能和轻质性质。最值得注意的是，复合纤维的强度显著增加了24.4%，模量增加了17.7%。这些纤维在各种工业应用中具有巨大的潜力，特别是在结构部件（例如，电动汽车），有助于提高性能和能源效率。
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.