Water contact angle values of samples 1#–5#.

Series	Left contact angle/degrees	Right contact angle/degrees	Average contact angle/degrees
1#	46.37	48.22	47.23
2#	36.41	36.23	36.17
3#	29.27	29.16	28.97
4#	19.91	19.46	19.91
5#	18.83	18.02	18.15