Evolution of carbon fiber properties during repetitive recycling via pyrolysis and partial oxidation

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Marina Corvo Alguacil, Kentaro Umeki, Shujie You, Roberts Joffe
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引用次数: 0

Abstract

The potential of recycling carbon fiber reinforced polymers (CFRP) as a sustainable solution for waste management is yet to be fully understood. This study reports on the evolution of mechanical, and chemical properties of reclaimed carbon fibers when recycled multiple times via pyrolysis and partial oxidation. The performed work aims at filling the knowledge gap related to repetitive recycling when moving towards a circular flow of resources. A recycling process existing at industrial scale is used to ensure the relevance and usefulness of the results in the current industry scene. Two sets of three identical model composites are recycled using distinct recycling parameters, and their properties are characterized at the end of each recycling cycle. Results show that recycling can lead to an increase in stiffness but can have a negative impact on strength of recovered fibers. Mechanical behaviour shows recovered fibers suitable for secondary applications with medium performance requirements after two recycling cycles. The findings highlight the importance of understanding the material properties evolution during recycling processes. This research contributes to the development of sustainable waste management strategies and a more environmentally friendly future.
重复热解和部分氧化循环过程中碳纤维性能的演变
回收碳纤维增强聚合物(CFRP)作为废物管理的可持续解决方案的潜力尚未得到充分了解。本研究报道了再生碳纤维经多次热解和部分氧化循环后力学性能和化学性能的演变。所执行的工作旨在填补在向资源循环流动移动时与重复回收相关的知识空白。现有的工业规模回收过程被用来确保结果在当前工业场景中的相关性和有用性。采用不同的回收参数对两组三种相同模型的复合材料进行回收,并在每个回收循环结束时对其性能进行表征。结果表明,循环利用可以增加纤维的刚度,但会对回收纤维的强度产生负面影响。机械性能表明回收的纤维适合二次应用,在两次循环后具有中等性能要求。研究结果强调了了解回收过程中材料特性演变的重要性。这项研究有助于制定可持续的废物管理战略和更环保的未来。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Carbon Trends
Carbon Trends Materials Science-Materials Science (miscellaneous)
CiteScore
4.60
自引率
0.00%
发文量
88
审稿时长
77 days
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