工艺与制造英文2024被引 5
连续金属纤维增强再生ABS的3D打印工艺研究——纤维含量变化影响
3D printing of continuous metal fiber-reinforced recycled ABS with varying fiber loading
Vishal Mishra, Jitendra Kumar, Sushant Negi, Simanchal Kar
摘要整理
本研究旨在开发一种采用喷嘴内浸渍技术的3D打印连续金属纤维增强再生热塑性复合材料。将再生丙烯腈-丁二烯-苯乙烯共聚物(RABS)与原生ABS(VABS)按60:40质量比混合,制备3D打印长丝作为基体材料;采用回收连续黄铜丝(CBW)作为增强体。使用自主设计的打印头进行3D打印,制备弯曲、压缩和层间剪切强度(ILSS)测试样品。研究结果表明,采用0.7 mm层宽打印的RABS-B/CBW复合材料相比VABS和RABS-B样品,在三点弯曲、压缩和ILSS测试中性能显著提升:最大弯曲载荷(Lmax)提高30.5%,最大载荷处弯曲应力(σfmax)提高49.6%,弯曲模量(Ef)提高88.4%,断裂功(WOF)提高13.8%,压缩模量(Ec)提高21.6%,ILSS性能提高30.3%。同时对样品的物理性能进行了分析。喷嘴内浸渍技术在3D打印金属纤维增强再生热塑性复合材料领域的研究相对有限。该方法具有创新性,能够制备耐久性强、强度高的可持续复合材料,适用于工程应用,有助于减少对原生材料的依赖。
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