Table 3 Surface chemical composition and atomic ratio of change of Nylon and PES modified by CF4 plasma treatment (n = 1)
| Â | Â | Elemental ratio (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Sample | C | N | O | S | F | N/C | O/C | S/C | F/C | |
EDS | PES Theoretical | 75 | – | 19 | 6 | 0 | – | 0.25 | 0.08 | 0.00 |
PES Unprocessed | 80 | – | 15 | 5 | 0 | – | 0.19 | 0.06 | 0.00 | |
PES CF4 Treated | 78 | – | 15 | 5 | 2 | – | 0.19 | 0.06 | 0.03 | |
Nylon Theoretical | 75 | 12.5 | 12.5 | – | 0 | 0.16 | 0.16 | – | 0.00 | |
Nylon Unprocessed | 79 | 10 | 11 | – | 0 | 0.12 | 0.14 | – | 0.00 | |
Nylon CF4 Treated | 75 | 9 | 11 | – | 5 | 0.12 | 0.15 | – | 0.07 | |
XPS | PES Theoretical | 75 | – | 19 | 6 | 0 | – | 0.25 | 0.08 | 0.00 |
PES Unprocessed | 79 | – | 18 | 4 | 0 | – | 0.25 | 0.04 | 0.00 | |
PES CF4 Treated | 57 | – | 14 | 2 | 27 | – | 0.25 | 0.04 | 0.48 | |
Nylon Theoretical | 75 | 12.5 | 12.5 | – | 0 | 0.16 | 0.16 | – | 0.00 | |
Nylon Unprocessed | 75 | 12 | 13 | – | 0 | 0.16 | 0.17 | – | 0.00 | |
Nylon CF4 Treated | 43 | 5 | 7 | – | 45 | 0.11 | 0.15 | – | 1.10 | |