Research Article
Road Performance and Microscopic Mechanism Analysis of Modified Straw Fiber Asphalt Binder
Table 6
Common absorption peaks of two types of straw fibers.
| | Wavenumber (cm−1) | Functional group | Polymer | | Corn straw fiber | Cotton straw fiber |
| | 3427 | 3418 | O-H stretching | Mostly cellulose | | 2935 | 2937 | C-H stretching | Mostly hemicellulose | | 1605 | 1636 | C=C stretching | Mostly lignin | | 1055 | 1062 | C-O vibrations | Cellulose and hemicellulose | | 897 | 901 | β-D-glucoside bond vibrations | Mostly cellulose | | 3427 | 3418 | O-H stretching | Mostly cellulose | | 2935 | 2937 | C-H stretching | Mostly hemicellulose |
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