Sustainable recycling and upgrading of waste polytetrafluoroethylene: Current progress and prospect

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-01-24 DOI:10.1016/j.resconrec.2025.108143

Wenbing Yu , Lishan Chen , Xi Zhang , Rui Lu , Xuhai Zhu , Fang Lu

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Abstract

Polytetrafluoroethylene (PTFE), a versatile and high-performance fluoropolymer, has been widely applied to chemical industries, electronics and various other fields. However, owing precisely to the extensive and specialized range of its applications, the challenge of recycling PTFE has intensified, exerting considerable pressure and posing potential hazards to the ecological environment. Hence, the critical review presents a comprehensive and methodical overview of the current landscape of PTFE recycling technologies. It delves into an in-depth analysis of the strengths, limitations, and potential applications of each technology. Commencing with a comprehensive summary of research into mechanical recycling and radiation cracking of PTFE, the review subsequently emphasizes and explores the technological advancements in recovering monomers via PTFE pyrolysis, along with the innovative in-situ utilization of fluorine and carbon atoms for the synthesis of fluorine-containing chemicals and materials. Furthermore, the existing challenges confronting chemical recycling technologies for waste PTFE have been thoroughly discussed, and the promising prospects for the advancement of recycling technologies in the future have been outlined. It's anticipated that continuous research exploration and reasonable policy formulation will vigorously promote the development of more environmentally sustainable and economically feasible chemical upgrading technologies, thereby accelerating the process of industrializing the utilization of waste PTFE resources.

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.