Research Article
Characterization of Thermal Properties of Highland Bamboo Fibers
Table 2
Characteristic bands for a functional group of untreated and alkali-treated highland bamboo fiber at various concentrations [
25–
30].
| Wavenumber (cm−1) | Functional group | Compounds |
| 3400–3425 | –OH | Alcohol (cellulose, hemi-cellulose, and lignin), phenol (bond H), and carboxylic acid | 22,075–2083 | C–H | Alkanes | 1617–1620 | C=O | Hemicelluloses and lignin | 1380–1382 | C–H | C–H deformation in cellulose and hemicellulose | 1106–1109 | C–O | Alcohol (cellulose, hemicellulose, and lignin), ether, carboxylic acid, and ester | 613–619 | O–H | Out of plane bending |
|
|