Official Journal of the Japan Wood Research Society
From: The surface chemical constituent analysis of poplar fibrosis veneers during heat treatment
Element constitution | Binding type | Binding energy/eV | Untreated | Fibrosis veneers | 160 °C/0.3 MPa | 180 °C/0.3 MPa |
---|---|---|---|---|---|---|
C/% | – | – | 74.26 | 75.82 | 76.91 | 83.15 |
O/% | – | – | 24.92 | 23.15 | 22.45 | 16.01 |
O/C | – | – | 0.34 | 0.31 | 0.29 | 0.19 |
C1/% | C–C or C–H | 284.8 | 48.38 | 52.37 | 57.04 | 77.26 |
C2/% | C–O | 286.5 | 41.48 | 37.74 | 33.26 | 11.51 |
C3/% | O–C–O or C=O | 288.0 | 8.11 | 7.89 | 7.20 | 5.33 |
C4/% | O–C=O | 289.2 | 2.03 | 2.00 | 2.50 | 5.90 |
C1/C2 | – | – | 1.17 | 1.39 | 1.71 | 6.71 |
COX/CUNOX | – | – | 1.07 | 0.91 | 0.75 | 0.29 |
O1/% | O–C=O | 532.2 | 4.53 | 4.92 | 5.79 | 6.46 |
O2/% | C–O–, C=O, C–O–C, O–C=O | 534.35 | 95.47 | 95.08 | 94.21 | 93.54 |