The friction property of super-hydrophobic cotton textiles

Two kinds of super-hydrophobic cotton textiles were prepared via dip-coating cotton textiles with nano-silica suspensions, and the cotton textiles exhibits high contact angle more than 1608 and low sliding angle lower than 48. A friction method was used to evaluate the durability of the as-prepared super-hydrophobic cotton textiles, the results shows that one of the as-prepared super-hydrophobic cottons exhibits better stability property against friction, and its contact angle remained higher than 1508 and sliding angle remained lower than 158 after 1000 times friction. SEM analysis shows the reduction of hydrophobic property was resulted from the damage of surface structure during friction cycle. (C) 2010 Elsevier B. V. All rights reserved.