The Influences of Surface Roughness on the Water Contact Angle for Coated Substrate with F-DLC

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Hydrophobicity improvement of DLC can be achieved by adding fluorine element usually. However, higher F content may affect the other performance of DLC seriously, such as strength and abrasive resistance. Plasma enhanced chemical vapor deposition technology were employed to prepare F-DLC on the surface of steel (S35C) substrate in condition of 20mass% of F. Experimental results demonstrated that roughness significant increase in the coating substrate has contributed to improve hydrophobicity. In the range of 0~200nm for the roughness, the contact angle is influenced by the surface energy and the surface roughness; Ra>200nm, the influence of roughness on the water contact angle is gradually becoming the leading. And Ra=1300nm, water contact angle is 104°.

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Edited by:

Hun Guo, Taiyong Wang, Zijing Wang, Hongfeng Wang and Ji Xu

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68-77

Citation:

X. T. Wei et al., "The Influences of Surface Roughness on the Water Contact Angle for Coated Substrate with F-DLC", Key Engineering Materials, Vol. 764, pp. 68-77, 2018

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February 2018

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$38.00

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