Abstract
Shape Memory polymer (SMP) is known to have visco-elastic behaviour. Shape recovery is considered to occur due to this visco-elastic behaviour. On the other hand, creep behaviour may also occur that is known as one of visco-elastic behaviour. It is important to understand creep behaviour, because it effects on material's reliability. This research examined the creep behaviour using the SMP, and creep behaviour and influencing factor were investigated by three point bending creep test. As a result, time and temperature dependence was confirmed, and also physical aging has a large effects on creep behaviour. To be more precise, creep deflection was suppressed with increasing of physical aging treatment time. In physical aging time for 1000min, master curve can be drawn by superposing the creep compliance curves, and SMP conformed to Arrhenius type of time-temperature superposition principle.
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