{"title":"用节能方法提高 MEX 添 加制造的再生 PET 的机械性能","authors":"","doi":"10.1016/j.susmat.2024.e01038","DOIUrl":null,"url":null,"abstract":"<div><p>This study investigates the recycling of polyethylene terephthalate (PET) water bottles by material extrusion (MEX), an additive manufacturing (AM) technique, with a focus on characterising energy consumption and mechanical properties throughout the recycling process. The process encompasses shredding of the bottles, filament production, and the printing of tensile specimens. A full factorial design of experiment (DoE) was used to investigate the impact of various process parameters on product quality from an energy-saving perspective. The results provide important insights into energy efficiency and mechanical performance, identifying the optimal production conditions that balance environmental sustainability and material functionality. The results show that by optimizing printing parameters, energy consumption can be reduced by up to 30%, while the tensile strength of the printed samples can be increased by 20%. This research contributes to a broader understanding of the potential for AM in PET recycling, providing a pathway towards more localized and sustainable manufacturing practices.</p></div>","PeriodicalId":22097,"journal":{"name":"Sustainable Materials and Technologies","volume":null,"pages":null},"PeriodicalIF":8.6000,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214993724002185/pdfft?md5=4a0e4202c8a5ca850c7eab80c370d979&pid=1-s2.0-S2214993724002185-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Energy-saving approach for mechanical properties enhancement of recycled PET additively manufactured by MEX\",\"authors\":\"\",\"doi\":\"10.1016/j.susmat.2024.e01038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study investigates the recycling of polyethylene terephthalate (PET) water bottles by material extrusion (MEX), an additive manufacturing (AM) technique, with a focus on characterising energy consumption and mechanical properties throughout the recycling process. The process encompasses shredding of the bottles, filament production, and the printing of tensile specimens. A full factorial design of experiment (DoE) was used to investigate the impact of various process parameters on product quality from an energy-saving perspective. The results provide important insights into energy efficiency and mechanical performance, identifying the optimal production conditions that balance environmental sustainability and material functionality. The results show that by optimizing printing parameters, energy consumption can be reduced by up to 30%, while the tensile strength of the printed samples can be increased by 20%. This research contributes to a broader understanding of the potential for AM in PET recycling, providing a pathway towards more localized and sustainable manufacturing practices.</p></div>\",\"PeriodicalId\":22097,\"journal\":{\"name\":\"Sustainable Materials and Technologies\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.6000,\"publicationDate\":\"2024-07-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2214993724002185/pdfft?md5=4a0e4202c8a5ca850c7eab80c370d979&pid=1-s2.0-S2214993724002185-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sustainable Materials and Technologies\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214993724002185\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sustainable Materials and Technologies","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214993724002185","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
摘要
本研究调查了通过材料挤压(MEX)(一种增材制造(AM)技术)对聚对苯二甲酸乙二酯(PET)水瓶进行回收的情况,重点是对整个回收过程中的能耗和机械性能进行表征。该过程包括粉碎瓶子、生产长丝和打印拉伸试样。采用全因子实验设计(DoE),从节能角度研究了各种工艺参数对产品质量的影响。研究结果提供了有关能源效率和机械性能的重要见解,确定了兼顾环境可持续性和材料功能的最佳生产条件。结果表明,通过优化印刷参数,能耗最多可降低 30%,而印刷样品的拉伸强度可提高 20%。这项研究有助于人们更广泛地了解聚对苯二甲酸乙二酯(PET)回收利用中的 AM 技术潜力,为实现更加本地化和可持续的生产实践提供了途径。
Energy-saving approach for mechanical properties enhancement of recycled PET additively manufactured by MEX
This study investigates the recycling of polyethylene terephthalate (PET) water bottles by material extrusion (MEX), an additive manufacturing (AM) technique, with a focus on characterising energy consumption and mechanical properties throughout the recycling process. The process encompasses shredding of the bottles, filament production, and the printing of tensile specimens. A full factorial design of experiment (DoE) was used to investigate the impact of various process parameters on product quality from an energy-saving perspective. The results provide important insights into energy efficiency and mechanical performance, identifying the optimal production conditions that balance environmental sustainability and material functionality. The results show that by optimizing printing parameters, energy consumption can be reduced by up to 30%, while the tensile strength of the printed samples can be increased by 20%. This research contributes to a broader understanding of the potential for AM in PET recycling, providing a pathway towards more localized and sustainable manufacturing practices.
期刊介绍:
Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.