Host: The Japan Society for Precision Engineering
The engineering plastics are considered as attractive industrial materials now. In particular, the expectation to the polycarbonate is very big. Especially Among them, polycarbonate (PC) is a resin having high resistance against the shock and difficult to break, strength, heat-resistance and permeable excellent plastic. And owing to the lightweight of themselves, they have been used in various applications, such as glass bulletproof glass and the Shinkansen. However, generally the paint-work is difficult because of the superior smoothness of surface. Therefore improvement of wettability on the surface is necessary. By irradiation of short pulsed laser, the wettability on the materials surface tried to improve. A short pulse laser of the nanosecond and the picosecond laser were used for this experiment. As a result, significant improvement was obtained by laser irradiation.
