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含有风力轮机叶片固体废物的多层制造,用于高性能复合纤维

Varunkumar Thippanna¹, Arunachalam Ramanathan¹, Dhanush Patil¹

¹Mechanical Engineering, College of Engineering, University of Georgia, 302 E Campus Rd, Athens, Georgia 30602, United States.

ACS materials Au

|September 15, 2025

概括

将风力轮机叶片废弃物回收成先进的复合纤维提供了一个可持续的解决方案. 这一过程提高了材料性能,以满足航空航天等苛刻应用的需求.

科学领域:

材料科学材料科学材料科学
复合材料复合材料复合材料
可持续工程可持续工程

背景情况:

风力轮机叶片 (WTB) 废弃物由于其大体积和复杂的复合结构而构成重大处置挑战.
目前对WTB废物的处置方法是环境负担和经济效率低下的.
越来越需要创新的回收策略来重新利用WTB材料.

研究的目的:

开发一种用于将WTB衍生的玻璃纤维 (GF) 改造为高性能聚烯 (PAN) -GF复合纤维的新方法.
研究WTB-GF结合对PAN纤维的热和机械性能的影响.
通过热处理成碳化纤维 (CF) 来评估这些复合纤维在先进应用中的潜力.

主要方法:

使用可扩展的干喷气湿和强制组装工艺,制造多层PAN-GF复合纤维.
通过整合交替的PAN和PAN-GF层,精确地控制微米尺度上的层厚度.
使用拉伸试验和热重力学分析 (TGA) 描述复合纤维的热和机械性能.

主要成果:

与纯 PAN 纤维相比,256 层复合纤维显示出显著的改进:硬度 (模块) 增加了 54.7%,抗拉强度增加了 27.2%.
增加的玻璃纤维含量增强了热稳定性,在900°C时残量更高,表明了更大的碳产量.
256层的10PAN-4GF纤维实现了最高的残量 (41.23重量%),通过GF增强证明了有效的热稳定性.

结论:

开发的过程为WTB废弃物回收提供了一个可持续的途径,将其转化为高性能复合纤维.
由此产生的PAN-GF复合纤维具有增强的机械和热性能,适合苛刻的应用.
进一步的热处理可以产生具有特殊稳定的碳化纤维,非常适合航空航天和太空探索.

关键词:

碳化纤维是一种碳化纤维.热处理热处理的方法多层纤维是多层纤维.热稳定性的热稳定性风力轮机叶片的使用方法

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