用熔融NaOH-KOH†从胺固化环氧复合材料中回收纤维和单体

IF 9.2 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2025-01-21 DOI:10.1039/d4gc05299d

Y. Justin Lim , Zehan Yu , Valeriy Cherepakhin , Travis J. Williams , Steven R. Nutt

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引用次数: 0

摘要

我们报道了一种从胺-环氧树脂CF增强聚合物（CFRP）复合材料中回收碳纤维（CF）织物和单体化学物质的快速途径。我们使用发生在熔融NaOH-KOH共晶中的反应来选择性地切割芳醚和胺键，这涉及两个温度依赖机制。双酚a被定量分离，回收的CF织物被重新制造成第二代cfrp。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Fiber and monomer recovery from an amine-cured epoxy composite using molten NaOH–KOH†

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Fiber and monomer recovery from an amine-cured epoxy composite using molten NaOH–KOH†

We report a rapid route to reclaim carbon fiber (CF) fabric and monomeric chemicals from amine-epoxy CF-reinforced polymer (CFRP) composites. We use a reaction that occurs in molten NaOH-KOH eutectic to selectively cleave aryl ether and amine linkages, which involves two temperature-dependant mechanisms. Bisphenol-A is isolated in up to quantitative yields, and recovered CF fabric is remanufactured into 2nd-generation CFRPs.

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来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.