Composite Materials and Engineering Center, Washington State University, Pullman, WA 99163, USA.
Composite Materials and Engineering Center, Washington State University, Pullman, WA 99163, USA.
Waste Manag. 2018 Jun;76:708-714. doi: 10.1016/j.wasman.2018.02.050. Epub 2018 Mar 2.
With an increase in renewable wind energy via turbines, an underlying problem of the turbine blade disposal is looming in many areas of the world. These wind turbine blades are predominately a mixture of glass fiber composites (GFCs) and wood and currently have not found an economically viable recycling pathway. This work investigates a series of second generation composites fabricated using recycled wind turbine material and a polyurethane adhesive. The recycled material was first comminuted via a hammer-mill through a range of varying screen sizes, resinated and compressed to a final thickness. The refined particle size, moisture content and resin content were assessed for their influence on the properties of recycled composites. Static bending, internal bond and water sorption properties were obtained for all composites panels. Overall improvement of mechanical properties correlated with increase in resin content, moisture content, and particle size. The current investigation demonstrates that it is feasible and promising to recycle the wind turbine blade to fabricate value-added high-performance composite.
随着通过涡轮机增加可再生风能，世界上许多地区都出现了涡轮机叶片处置的潜在问题。这些风力涡轮机叶片主要是玻璃纤维复合材料 (GFC) 和木材的混合物，目前还没有找到经济可行的回收途径。这项工作研究了一系列使用回收风力涡轮机材料和聚氨酯粘合剂制造的第二代复合材料。回收材料首先通过锤磨机粉碎，通过一系列不同的筛网尺寸进行粉碎，然后进行树脂浸渍和压缩，最终达到最终厚度。评估了细化的粒径、水分含量和树脂含量对回收复合材料性能的影响。对所有复合材料板进行了静态弯曲、内结合和吸水性测试。机械性能的整体提高与树脂含量、水分含量和粒径的增加相关。目前的研究表明，从经济角度来看，回收风力涡轮机叶片制造高附加值高性能复合材料是可行和有前途的。
