A structural chemistry look at composites recycling,Materials Horizons

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A structural chemistry look at composites recycling
Materials Horizons ( IF 12.2 ) Pub Date : 2020-08-21 , DOI: 10.1039/d0mh01085e
Carlos A. Navarro _{1,

2,

3} , Cassondra R. Giffin _{1,

2,

3} , Boyang Zhang _{1,

2,

3} , Zehan Yu _{2,

3,

4} , Steven R. Nutt _{2,

3,

4} , Travis J. Williams _{1,

2,

3}

Affiliation

Composite materials, especially carbon fiber-reinforced polymers (CFRPs), are high-performance class of structural materials now commonly used in aircraft, marine, and other applications, with emerging large-scale use in the automotive and civil engineering applications. The difficulty of recycling these materials is a key obstacle preventing their further application in larger markets. For decades, the engineering community has pursued physical methods to recover value from end-of-life composite waste. This work has generated scalable methods to recover modest value from CFRP waste, but because of their low value recovery, these are applied to a small fraction of CFRP waste. By contrast, relatively few methods to recycle CFRPs have been based on strategic approaches systematically to deconstruct the thermoset polymers that hold them together. In this Focus Article, we will show the emergence of these structure-focused approaches to CFRP recycling and illustrate the path of this research toward the ultimate realization of methods to recover both the reinforcing fibers and the thermoset materials that comprise modern CFRPs.

中文翻译：

结构化学研究复合材料的回收利用

复合材料，特别是碳纤维增强聚合物（CFRP），是高性能类别的结构材料，目前通常用于飞机，船舶和其他应用，并且在汽车和土木工程应用中出现了大规模的新兴应用。回收这些材料的困难是阻碍其在更大市场中进一步应用的主要障碍。数十年来，工程界一直在追求物理方法，以从报废的复合废物中回收价值。这项工作已经产生了可伸缩的方法，可以从CFRP废料中回收适度的价值，但是由于回收价低，这些方法仅适用于一小部分CFRP废料。相比之下，相对较少的循环CFRP的方法是基于策略性方法来系统地解构将它们固定在一起的热固性聚合物。

更新日期：2020-10-05

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