将刺槐/碳/环氧混合复合材料作为替代假体插座材料的性能研究

H. Sosiati, Ainur Luthfi Abdul Afif, Azhar Hudiatma, R. K. Adi, Ankas Pamasti
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引用次数: 0

摘要

人们研究了天然纤维增强热塑性和热固性聚合物的复合材料,以开发义肢插座材料。本研究通过改变 AF 和 CF 的比例 1:0、0:1、2:1、3:1 和 4:1,以及 80% 的环氧树脂,研究了阿拉伯纤维 (AF) / 碳纤维 (CF) / 环氧树脂 (EP) 混合复合材料的性能:即拉伸、弯曲、冲击、热和吸水性。弯曲试样中形成的裂缝用光学显微镜进行了表征,而拉伸断裂表面则用扫描电子显微镜(SEM)进行了表征。结果证实,CF/EP 复合材料的机械性能最高。AF/CF 比率越高,混合复合材料的机械性能越低,吸水率越高。AF/CF 比为 2:1 的混合复合材料的拉伸和弯曲强度最高,分别达到 70 兆帕和 103 兆帕,吸水率最低,为 7.89%。根据实验结果,使用 Autodesk Inventor 2019 和 ANSYS Workbench 2019 R1 对假体插座进行了仿真,结果发现其 von Mises 应力为 2.14 MPa,变形为 0.015 mm。此外,热重力分析(TGA)结果表明其具有良好的热稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of Abaca/Carbon/Epoxy Hybrid Composite Properties as an Alternative Prosthetic Socket Material
Composites of natural fiber-reinforced thermoplastic and thermoset polymers have been studied for developing prosthetic socket materials. This study investigated the abaca fiber (AF)/carbon fiber (CF)/epoxy (EP) hybrid composite properties: i.e., tensile, flexural, impact, thermal, and water absorption, by varying AF and CF ratios of 1: 0, 0: 1, 2: 1, 3: 1, and 4: 1 with 80 vol% epoxy resin. The cracks formed in bending test specimens were characterized with an optical microscope, whereas the tensile fracture surface was characterized by scanning electron microscopy (SEM). The results confirmed that the mechanical properties of the CF/EP composite are the highest. The higher the AF/CF ratio, the lower the hybrid composite's mechanical properties and the higher the water absorption. The hybrid composite with a 2:1 AF/CF ratio achieved the highest tensile and flexural strengths of 70 MPa and 103 MPa, respectively, and the lowest water absorption of 7.89%. Based on the experimental results, a simulation of the prosthetic socket was performed using Autodesk Inventor 2019 integrated with ANSYS Workbench 2019 R1, resulting in von Mises stress of 2.14 MPa and deformation of 0.015 mm. Besides, its thermal gravimetric analysis (TGA) resulted in good thermal stability.
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