工艺与制造英文2025被引 1
采用自动纤维铺放技术制备高定向回收碳纤维带的力学性能研究
Mechanical Properties of Highly Oriented Recycled Carbon Fiber Tapes Using Automated Fiber Placement
Julian Theiss, Perwan Haj Ahmad, Frank Manis, Miriam Preinfalck, Stephan Baz · Fraunhofer IGCV, Am Technologiezentrum 2, 86159 Augsburg, Germany
摘要整理
本研究重点关注高度取向回收碳纤维（rCF）带的制备与加工。通过改进的梳理机对回收碳纤维进行处理，经专门的后续工艺实现纤维定向，并将其固化成半成品。采用改进的自动纤维铺放（AFP）技术将高定向rCF带铺放到二维工具上，展示了一种利用高定向回收材料制备复合材料的新颖方法。半成品层叠体在加热压机中进行固化，按相应标准对试样进行测试。通过拉伸和弯曲测试、纤维体积含量测定等方法对rCF带进行评估，并对多代次回收碳纤维带进行对比分析，同时与相同碳纤维类型和基体的原生纤维带（vCF带）进行性能对标。采用显微成像技术分析复合材料的质量。研究结果表明，在纤维体积含量约40%的条件下，纤维方向拉伸强度达1100 MPa，刚度达80 GPa。研究成果充分证明了高定向回收碳纤维带的应用潜力和优势，验证了纤维铺放技术对回收材料的适用性。
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