The influence of plasma in various atmospheres on the adhesion properties of recycled carbon fiber

摘要

We studied the effects of the plasma surface treatment of recycled carbon fiber (RCF) for adhesion of the fiber to polymers after various plasma conditions. RCF was treated in dry air and CO2 by the plasma surface treatment to compare its surface and adhesive properties depended on treatment conditions. The changes in surface morphology of RCF were examined using scanning electron microscopy (SEM). Surface functionalization was quantified by X-ray photoelectron spectroscopy (XPS). The efficiency of the modification for adhesion properties by the plasma surface treatment depends on the gas used as well as on the exposure time. The micro-droplet test for adhesion properties and the surface change after performing an interfacial shear stress (IFSS) of carbon fiber-reinforced plastics (CFRP) were also investigated.