Title
Synergetic effect of cross-linking and interfacial interaction in carbon fiber reinforced thermoplastic to enhance its tensile strength by electron-beam irradiation
Author
Soonyoung Jung, Se kye Par, Han-do Ghim, Dong Yun Lee, Seung Hwa Yoo
Year
2019
Journal
Carbon Letters
Abstract
A carbon fber reinforced thermoplastic (CFRTP) was irradiated with a high energy electron-beam. As a result, the tensile strength of high-density polyethylene (HDPE)-based CFRTPs was signifcantly improved by gradually increasing the
electron-beam dose. It was confrmed that the adhesion between CF and HDPE was improved and the surface properties
of CF and HDPE were readily modifed by electron-beam. It was verifed from spectroscopic analysis that various oxygencontaining functional groups were formed on the surface of CF and HDPE by irradiation and we believe that strong attractive interactions took place among these functional groups at the interface of CFs and HDPE. Finally, it was conclusive that
electron-beam irradiation provided two main efects on CFRTPs. One was cross-linking of thermoplastic resin for efcient
load transfer from resin to CF and the other was formation of surface functional group and attractive interaction of these
functional groups at the interface of fber and matrix. These two efects showed synergetic contribution to enhance the
mechanical properties of CFRTP.
Instrument
IRT-5200
Keywords
Electron-beam irradiation, Carbon fiber reinforced thermoplastic, Oxygen-containing functional group, Fibermatrix interface, Interfacial adhesion, Attractive interaction