工艺与制造英文2020被引 46
3D打印连续菠萝叶纤维增强PLA复合材料性能研究
Properties investigation of 3D printed continuous pineapple leaf fiber-reinforced PLA composite
Jaya Suteja, Hudiyo Firmanto, Arum Soesanti, Christian Christian · Department of Mechanical Engineering, University of Surabaya, Surabaya, Indonesia
摘要整理
虽然前期研究通过添加短纤维或连续纤维、天然或非天然纤维作为热固性或热塑性基体的增强体来改善3D打印件的力学性能，但文献中尚未见到将连续天然菠萝叶纤维作为聚乳酸（PLA）基体增强体进行3D打印的研究。本研究旨在通过改变挤出温度和进料速率，系统研究连续菠萝叶纤维增强PLA复合材料3D打印件的拉伸强度、伸长率和尺寸误差。采用3²因子设计，每组2次重复，按ASTM D638标准制备18个拉伸试样。研究结果表明：连续菠萝叶纤维的引入显著提高了复合材料的拉伸强度；纤维增强复合材料的尺寸误差未超过常规熔融沉积成型（FDM）打印件的最大值；打印复合材料件所需时间与打印纯PLA件相同。但是，复合材料的伸长率低于纯PLA材料。该研究为天然纤维增强热塑性复合材料的3D打印应用提供了实验依据。
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