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首页> 美国卫生研究院文献>Polymers >Influence of Internal Innovative Architecture on the Mechanical Properties of 3D Polymer Printed Parts
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Influence of Internal Innovative Architecture on the Mechanical Properties of 3D Polymer Printed Parts

机译：内部创新架构对3D聚合物印刷零件的机械性能的影响

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摘要

The utilization of polymer-based materials is quickly expanding. The enterprises of today are progressively seeking techniques to supplant metal parts with polymer-based materials as a result of their light weight, simple support and modest costs. The ceaselessly developing requirement for composite materials with new or enhanced properties brings about the preparation of different polymer mixes with various arrangements, morphologies and properties. Fused filament fabrication processes such as 3D-printing are nowadays shaping the actual pathway to a full pallet of materials, from art–craft to biomaterials. In this study, the structural and mechanical behavior of three types of commercially available filaments comprised of synthetic poly(acrylonitrile-co-butadiene-co-styrene) (ABS), poly(lactic acid) (PLA) and poly(lactic acid)/polyhydroxyalkanoate reinforced with bamboo wood flour composite (PLA/PHA BambooFill) were assessed through mechanical testing and optical microscopy, aiming to understand how the modifications that occur in the printed models with internal architecture are influencing the mechanical properties of the 3D-printed material. It has been determined that the material printed from PLA presents the highest compression strength, three-point bending and shock resistance, while the ABS shows the best tensile strength performance. A probability plot was used to verify the normality hypothesis of data for the tensile strength, in conjunction with the Anderson–Darling statistic test. The results of the statistic indicated that the data were normally distributed and that there is a marked influence of the internal architecture of the 3D-printed models on the mechanical properties of the printed material.
机译：聚合物基材料的利用正在迅速扩大。当今的企业由于其重量轻，支持简单且成本适中，正在逐步寻求用聚合物基材料代替金属零件的技术。对具有新的或增强的性能的复合材料的不断发展的需求导致制备具有各种排列，形态和性能的不同聚合物混合物。如今，熔融的长丝制造工艺（例如3D打印）正在塑造通向从工艺品到生物材料的全套材料的实际路径。在这项研究中，三种类型的市售长丝的结构和力学行为包括合成的聚（丙烯腈-丁二烯-苯乙烯）（ABS），聚乳酸（PLA）和聚乳酸/通过机械测试和光学显微镜评估了用竹木粉复合材料（PLA / PHA BambooFill）增强的聚羟基链烷酸酯，旨在了解内部结构的印刷模型中发生的修改如何影响3D印刷材料的机械性能。已经确定，用PLA印刷的材料具有最高的压缩强度，三点弯曲和耐冲击性，而ABS具有最佳的拉伸强度性能。结合安德森-达林统计检验，使用概率图来验证抗张强度数据的正态假设。统计结果表明数据是正态分布的，并且3D打印模型的内部体系结构对打印材料的机械性能有显着影响。

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