Abstract
The alteration of an epoxy-based Carbon Fiber Reinforced Polymer (CFRP) by visible light is investigated by accelerating the aging process. Several parameters are studied such as the dose, the wavelength effect, or the atmospheric composition. The degradation is found to be led by a photooxidation process using light of wavelength up to typically 500 nm irradiation and affects the first microns of the irradiated surface. Besides, when the aged CFRP is gently rubbed, micrometric epoxy particles can be generated. Such particle formation might have important impact on some industries due to the wide use of CFRPs. The study is extended to other types of resins and includes results on non-accelerated aging. Recommendations are given to limit and control the risk of aging.
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