使用回收轮胎橡胶基长丝进行可持续 3D 打印:工艺参数和机械性能研究

Silvia Badini, Serena Graziosi, Michele Carboni, S. Regondi, Raffaele Pugliese
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引用次数: 0

摘要

目的 本研究评估了使用材料挤出(MEX)工艺回收废轮胎橡胶(WTR)的潜力。通过研究热塑性聚氨酯-废轮胎橡胶复合长丝(TPU-WTR)的工艺参数、机械性能和形态特征,本研究旨在建立一个利用 MEX 技术进行报废轮胎(ELT)回收的框架。通过滞后分析和泊松比估算来研究材料的行为。此外,还探讨了各种 TPU-WTR 三周期最小表面晶格的抗压性能,以测试长丝是否适合打印复杂的结构。因此,MEX 工艺有助于 WTR 的回收利用。机械测试深入揭示了工艺参数对材料性能的影响,而对各种晶格结构的研究则对材料打印复杂拓扑结构的能力提出了挑战。利用回收材料开发三维打印的可持续结构可减少资源消耗,并促进负责任的生产实践,从而建立一个更具环保意识的社会。原创性/价值本研究通过展示 MEX 技术在 ELT 回收中的应用,特别是对 TPU-WTR 长丝的关注,为该领域做出了贡献,并提出了一种符合联合国可持续发展目标 12 的可持续消费和生产的新方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Sustainable 3D printing with recycled tire rubber-based filaments: an investigation of process parameters and mechanical behaviour
Purpose This study evaluates the potential of using the material extrusion (MEX) process for recycling waste tire rubber (WTR). By investigating the process parameters, mechanical behaviour and morphological characterisation of a thermoplastic polyurethane-waste tire rubber composite filament (TPU-WTR), this study aims to establish a framework for end-of-life tire (ELT) recycling using the MEX technology. Design/methodology/approach The research assesses the impact of various process parameters on the mechanical properties of the TPU-WTR filament. Hysteresis analysis and Poisson’s ratio estimation are conducted to investigate the material’s behaviour. In addition, the compressive performance of diverse TPU-WTR triply periodic minimal surface lattices is explored to test the filament suitability for printing intricate structures. Findings Results demonstrate the potential of the TPU-WTR filament in developing sustainable structures. The MEX process can, therefore, contribute to the recycling of WTR. Mechanical testing has provided insights into the influence of process parameters on the material behaviour, while investigating various lattice structures has challenged the material’s capabilities in printing complex topologies. Social implications This research holds significant social implications addressing the growing environmental sustainability and waste management concerns. Developing 3D-printed sustainable structures using recycled materials reduces resource consumption and promotes responsible production practices for a more environmentally conscious society. Originality/value This study contributes to the field by showcasing the use of MEX technology for ELT recycling, particularly focusing on the TPU-WTR filament, presenting a novel approach to sustainable consumption and production aligned with the United Nations Sustainable Development Goal 12.
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