Accelerated Light Aging of Glass Fiber /Brominated Epoxy Vinyl Ester Composites

Mechinical properties of glass fiber /brominated epoxy vinyl ester composites( GFRC) were studied after the accelerated light agingtest. Surface Micromorphology and Elements changes of GFRC in the aging process were researched by scanning electron microscope( SEM) and X-ray photoelectron spectroscopy( XPS),respectively. The results showed that the GFRC keeped perfect mechinical properties,such as perfect retention in tensil,bend, and compressive strength,after being exposed under the light a period of time. The color of the GFRC surface became darker and a small section of the ester falled off from the GFRC surface. Fourier transform infraed spectrscopy( FTIR) and themo analysis showed that the continued aging of the internal ester was prevented by the surface glass fiber.