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中南大学学报(英文版)

Journal of Central South University

Vol. 26    No. 10    October 2019

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Characterization of carbon fibers recovered through mechanochemical-enhanced recycling of waste carbon fiber reinforced plastics
NZIOKA Antony Mutua1, ALUNDA Bernard Ouma2, YAN Cao-zheng(鄢曹政)3, SIM Ye-Jin4,KIM Myung-Gyun5, YOON Bok-Young1, KIM Young-Ju4

1. R & D Institute, Silla Entech Company, Daegu 41566, Korea;
2. Department of Mechanical Engineering, Kyungpook National University, Daegu 41566, Korea;
3. Department of Biochemical and Environmental Engineering, Hanjiang Normal University,
Shiyan 442000, China;
4. Department of Environmental and Energy Engineering, Kyungpook National University,
Daegu 41566, Korea;
5. Department of Health Environment, Daegu Health College, Daegu 41453, Korea

Abstract: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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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