废风力轮机的处理和回收利用:组件识别和分析
Xiaohan Zhao1, Daria Pakuła2, Miłosz Frydrych2
1International Center for Interdisciplinary Research and Innovation of Silsesquioxane Science, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
Materials (Basel, Switzerland)
|January 25, 2025
概括
由于复合材料,回收风力轮机叶片具有挑战性. 这项研究引入了新的削和分离技术,以有效地从这些废物中回收有价值的玻璃纤维.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- 退役的风力轮机产生大量的复合废物,主要来自叶片.
- 传统的回收方法与轮机叶片的复杂材料组成 (聚合物矩阵中的玻璃/碳纤维) 斗争.
- 有效和环保的加工方法对于管理这种不断增长的废物流至关重要.
研究的目的:
- 开发和评估用于分析和利用风力轮机叶片复合废物的创新方法.
- 调查机械废物处理和材料分化,用于高价值组件回收.
- 描述分离材料的物理化学性质.
主要方法:
- 使用新型压缩削机械处理,以减少工具磨损.
- 根据视觉特征区分和分析15个不同的废物样本 (WT1-WT15).
- 使用里叶变换红外光谱法 (FTIR),热重力测量分析 (TGA) 和差分扫描热量测量 (DSC) 来进行材料特征.
- 实施湿分和干分的方法来进行组件分离.
主要成果:
- FTIR证实了PET,PE,PP,环氧/聚树脂,木材和玻璃纤维的存在.
- TGA和DSC提供了有关复合材料的热稳定性,降解和异质性的见解.
- 湿分离产生了不同的分数,GF1 (<40微米) 分数显示89.7%的残余质量,表明玻璃纤维含量很高.
- 新的加工方法在回收有价值的材料方面表现出有效性.
结论:
- 综合处理和分析技术对于风力轮机叶片废弃物利用是有效的.
- 压缩削提供了一种减少磨损的替代传统刀磨机.
- 有效的分离方法,特别是湿分离,可以回收高价值材料,如玻璃纤维.
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