TITLE:
Influence of UVB-Irradiation on the Structures and Solid Particle Erosion Resistance for CF/PC Composites
AUTHORS:
Mei Fang, Yuji Ma, Na Zhang, Ming Huang, Jose Castro, Xianhu Liu, Chuntai Liu, Changyu Shen
KEYWORDS:
Polymeric Composites, Sand Erosion, UVB Irradiation, FTIR
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.8 No.6,
June
28,
2020
ABSTRACT: The service life and properties of Carbon fiber reinforced polycarbonate (CF/PC) composites are seriously affected by ultraviolet radiation from outdoor exposure during aging. In this work, the changes of structure and solid particle erosion resistance for CF/PC composites after ultraviolet irradiation were studied. It was shown that ultraviolet irradiation causes photo-oxygen aging and photo-fries re-arrangement of the composite, and the result was confirmed by FTIR. We correlated the solid particle erosion resistance with aging time, and found that the solid particle erosion resistance of CF/PC composites greatly decreased by UVB irradiation during 15 hours. Furthermore, the eroded material surface was analyzed using scanning electron microscope (SEM). It suggests that ultraviolet aging leads to plasticization and degradation, resulting in reduction of erosion resistance of the composite.