Table 1 XPS analysis of industry standard PLA, graphene/PLA and the printed 3DE.
Element | Industry Standard PLA | Bulk Graphene/PLA | Printed 3DE | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Elemental Atom % | Moiety | Elemental Atom % | Moiety | Elemental Atom % | Moiety | |||||||
Assignment | BE (eV) | % of elemental signal | Assignment | BE (eV) | % of elemental signal | Assignment | BE (eV) | % of elemental signal | ||||
C 1 s | 81.4 | C—C | 284.9 | 79.97 | 85.4 | C—C | 285.0 | 87.69 | 66.65 | C—C | 285.0 | 49.10 |
C—O | 287.3 | 6.63 | C—O | 287.6 | 3.47 | C—O | 287.6 | 26.01 | ||||
COO− | 289.4 | 5.91 | COO− | 289.7 | 3.53 | COO− | 289.1 | 24.89 | ||||
O 1 s | 15.0 | C—O | 532.2 | 68.82 | 11.5 | C—O | 532.1 | 67.65 | 32.68 | C—O | 532.3 | 16.54 |
C=O | 533.7 | 31.18 | C=O | 533.6 | 31.73 | C=O | 533.7 | 15.62 | ||||
N 1s | 1.10 | Organic N2 | 399.9 | 100 | 0.80 | Organic N2 | 399.9 | 100 | 1.88 | Organic N2 | 400.0 | 100 |
