Journal of Central South University

, Volume 26, Issue 10, pp 2688–2703 | Cite as

Characterization of carbon fibers recovered through mechanochemical-enhanced recycling of waste carbon fiber reinforced plastics

  • Antony Mutua Nzioka
  • Bernard Ouma Alunda
  • Cao-zheng Yan (鄢曹政)
  • Ye-Jin Sim
  • Myung-Gyun Kim
  • Bok-Young Yoon
  • Young-Ju KimEmail author


In this study, we present the characterization of the carbon fibers recovered from the mechanochemical-enhanced recycling of carbon fiber reinforced fibers. The objectives of the study were to investigate the effect of our modified recycling method on the interfacial properties of recovered fibers. The reinforced plastics were recycled; the recycling efficiency was determined and the recovered fibers were sized using 1 wt% and 3 wt% concentration of (3-aminopropyl)triethoxysilane. We characterized the morphologies utilizing the electron spectroscopy for chemical analysis (ESCA), atomic force microscopy (AFM), FTIR-attenuated total reflection (ATR) spectroscopy and scanning electron microscopy (SEM). Although the surface of the fibers had no cracks, there was evidence of contaminations which affected the interfacial properties and the quality of the fibers. Results showed that the trends in the recovered and virgin fibers were similar with an increase in sizing concentration. The results highlighted the perspectives of increasing the quality of recovered fibers after the recycling process.

Key words

recycled carbon fibers fiber reinforced plastics mechanochemical process interfacial property surface morphology 



在本研究中,我们介绍了机械化学强化回收碳纤维的特性。本研究的目的是探讨改良的再生方 法对再生纤维界面性能的影响。对增强塑料进行了回收,测定了其回收效率,并用浓度分别为1%和 3% 的(3-氨丙基)三乙氧基硅烷对回收纤维进行了施胶。利用化学分析电子光谱(ESCA)、原子力显微 镜(AFM)、红外衰减全反射(ATR)光谱和扫描电子显微镜(SEM)对其形貌进行了表征。虽然纤维表面没 有裂纹,但有污染的迹象,影响了纤维的界面性能和质量。结果表明,随着施胶浓度的增加,再生纤 维和原生纤维的变化趋势相似。回收纤维具有很好的前景。


可回收碳纤维 纤维增强塑料 机械化学过程 界面质量 表面形态 


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Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.R & D InstituteSilla Entech CompanyDaeguKorea
  2. 2.Department of Mechanical EngineeringKyungpook National UniversityDaeguKorea
  3. 3.Department of Biochemical and Environmental EngineeringHanjiang Normal UniversityShiyanChina
  4. 4.Department of Environmental and Energy EngineeringKyungpook National UniversityDaeguKorea
  5. 5.Department of Health EnvironmentDaegu Health CollegeDaeguKorea

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