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The practical applications of bioinspired superhydrophobic surfaces are often restricted by poor mechanical wear-resistance. CeO2 nano particles toughened polymethyl methacrylate (PMMA)/polyvinylidene fluoride (PVDF) composite coating with water contact angle (WCA) of 152° and sliding angle (SA) of 5° was fabricated by drop casting method. After sand abrasion test, the WCA of the as-prepared CeO2/PMMA/PVDF superhydrophobic coating decreased to 103° and the SA increased to above 20°. To enhance the wear-resistance, chopped carbon fiber was used to reinforce the CeO2/PMMA/PVDF superhydrophobic composite coating. The results show that WCA of the chopped carbon fiber reinforcedCeO2/PMMA/PVDF superhydrophobic composite coating was able to maintain above 140° after continuous sand abrasion. It indicates that the chopped carbon fiber is a very effective approach to improve wear-resistance of the CeO2/PMMA/PVDF superhydrophobic composite coating and has prosperous potentiality towards mechanical robust water repellent coating.

Chopped carbon fiber reinforced CeO2/PMMA/PVDF superhydrophobic composite coating with enhanced abrasion durability