Hsueh Ming-Hsien, Lai Chao-Jung, Wang Shi-Hao, Zeng Yu-Shan, Hsieh Chia-Hsin, Pan Chieh-Yu, Huang Wen-Chen
Department of Industrial Engineering and Management, National Kaohsiung University of Science and Technology, Kaohsiung 807618, Taiwan.
Department of Fashion Design and Management, Tainan University of Technology, Tainan 71002, Taiwan.
Polymers (Basel). 2021 May 27;13(11):1758. doi: 10.3390/polym13111758.
Fused Deposition Modeling (FDM) can be used to manufacture any complex geometry and internal structures, and it has been widely applied in many industries, such as the biomedical, manufacturing, aerospace, automobile, industrial, and building industries. The purpose of this research is to characterize the polylactic acid (PLA) and polyethylene terephthalate glycol (PETG) materials of FDM under four loading conditions (tension, compression, bending, and thermal deformation), in order to obtain data regarding different printing temperatures and speeds. The results indicated that PLA and PETG materials exhibit an obvious tensile and compression asymmetry. It was observed that the mechanical properties (tension, compression, and bending) of PLA and PETG are increased at higher printing temperatures, and that the effect of speed on PLA and PETG shows different results. In addition, the mechanical properties of PLA are greater than those of PETG, but the thermal deformation is the opposite. The above results will be a great help for researchers who are working with polymers and FDM technology to achieve sustainability.
熔融沉积成型（FDM）可用于制造任何复杂的几何形状和内部结构，并且已在许多行业中广泛应用，如生物医学、制造、航空航天、汽车、工业和建筑行业。本研究的目的是表征FDM的聚乳酸（PLA）和聚对苯二甲酸乙二醇酯（PETG）材料在四种加载条件（拉伸、压缩、弯曲和热变形）下的性能，以获得不同打印温度和速度的数据。结果表明，PLA和PETG材料表现出明显的拉伸和压缩不对称性。观察到PLA和PETG的机械性能（拉伸、压缩和弯曲）在较高的打印温度下会提高，并且速度对PLA和PETG的影响呈现出不同的结果。此外，PLA的机械性能大于PETG，但热变形情况则相反。上述结果将对从事聚合物和FDM技术以实现可持续发展的研究人员有很大帮助。
