A novel preparation of porous superhydrophobic polystyrene /poly (vinyl chloride) alloy

摘要

Inspired by the 'lotus effect', a porous superhydrophobic PS/PVC alloy comprised of many micro-spheres and nanofibers was obtained by a simple approach. SEM showed that the micro-spheres were interlinked with nano-fibers. The sizes of the micro-spheres were 0.6-3 μm, and the diameters of these nano-fibers were between 100-600nm. The water contact angle and sliding angle on the superhydrophobic surface were 155±1.8°and 3°, respectively. When water flowed through the PS/PVC alloy surface for 2 h, no water bead was adhered on the superhydrophobic PS/PVC alloy surface, and the contact angle value was remained about 155°. Moreover, the contact angle were still higher than 150° when contacting with water with the temperatures ranging from 10℃ to 60℃. The as-prepared PS/PVC alloy surface was still superhydrophobic when contacting with blue ink, fresh blood, and even viscous glue water. The surface morphology of the PS/PVC alloy could be adjusted by changing the addition of PVC.