In this study polydopamine was

This indicated xerophytic leaves the modification process had only a small effect on the flexibility of the PET fabric. It can be seen from Fig. 9b that the crease recovery property of the original fabric was retained very well by the modified fabric. The original PET fabric had a crease recovery angle of about 321.7°, and the PET fabric modified using H2SO4 at a concentration of 25 g/L had a crease recovery angle of about 295.4°.