A stable superhydrophobic PC surface was obtained by a simple phase separation method at room temperature. The water contact angle of the superhydrophobic PC surface is 156± 2°. FESEM image exhibited that the PC surface composed of flower-like shaped linked together centrally with branches offered roughness on the surface with a hierarchical micro/nano-binary formation. When the PC superhydrophobic surface was immersed in water with the temperatures ranging from 5°C to 45°C for 1 h to 15 days, the water contact angle remained higher than 150°.
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