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. 2022 Jan 30;15(3):1083. doi: 10.3390/ma15031083

Table 3.

Measured contact angles between distilled water on the graphite surface before and after modification with CTAC.

Sample No. Left Contact Angle Value (°) Right Contact Angle Value (°) Mean Contact Angle (°)
1 80.50 80.00 80.25
2 72.50 72.00 72.25
3 66.00 65.50 65.75
4 55.00 57.00 56.00
5 36.50 37.50 37.00
6 50.00 59.50 59.75
7 56.50 56.00 56.25
8 62.50 59.00 60.75