Exploration for testing shape memory effects of PTT fabrics

For developing ideal testing methods and expression of related indexes for shape memory effects of PTT″shape memory″fabrics,six kinds of representative fabrics with similar textile structure were chosen,and subjective and objective evaluation methods for radian plasticity and objective evaluation methods for force stimulating recovery were designed.The experimental results suggested that there was a good correlation between subjective and objective evaluation methods for radian plasticity,thus proving that objective evaluation methods for radian plasticity is valuable and practical.Objective evaluation methods for force stimulating recovery has taken into consideration the impact of temperature,so that a good simulation of the recovery after being touch by hand is achieved.It is proven that the test method is both objective and convenient.