含有聚合物废物的颗粒板的特性
Marcin Kuliński1, Joanna Walkiewicz1, Dorota Dukarska1
1Department of Mechanical Wood Technology, Poznań University of Life Sciences, ul. Wojska Polskiego 28, 60-627 Poznań, Poland.
Materials (Basel, Switzerland)
|July 14, 2023
概括
将风力轮机叶片回收成木制材料,为废物提供了一个可持续的解决方案. 用20%的叶片材料和650公斤/立方米密度制成的板显示出优越的机械强度和弹性.
科学领域:
- 材料科学 材料科学 材料科学
- 可再生能源工程可再生能源工程
- 废物管理 废物管理
背景情况:
- 越来越多的人对可再生能源 (如风力发电场) 感兴趣.
- 风力轮机叶片在使用寿命结束时面临着重大处置挑战.
- 复合材料需要可持续的回收解决方案.
研究的目的:
- 研究将风力轮机叶片回收成木制复合材料的可行性.
- 评估包含碎片叶片材料的板材的物理和机械性能.
- 为了确定最佳的材料组成,以提高性能.
主要方法:
- 使用了两种刀片碎片大小 (小和大).
- 基于木材的板材以20%或40%的聚合物替代性生产,密度为650公斤/立方米和700公斤/立方米3.
- 测试的是机械性能 (MOR,MOE,IB) 和物理性能 (TS,WA).
主要成果:
- 2S65变体 (20%的叶片材料,650 kg/m3密度) 呈现出最高的静态曲强度和弹性模量 (2625 N/mm2).
- 4S65变种 (40%的叶片材料,650公斤/立方米密度) 显示了第二好的机械性能.
- 密度为700公斤/立方米的板没有显著差异,结果较低;厚度膨胀和吸水率也得到了评估.
结论:
- 回收的风力轮机叶片材料可以有效地纳入木制板.
- 经过优化后的组合体显示出潜在应用的有前途的物理和机械性能.
- 这种回收方法有助于实现可再生能源领域的循环经济原则.
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