Research Article
Mechanical and Optical Properties of Polylactic Acid Films Containing Surfactant-Modified Cellulose Nanocrystals
Table 2
Approximate percentage of colors of PLA-CNC composites observed under polarized light microscopy with a first-order red plate.
| | 0° | 45° | Estimated oriented area | Magenta | Yellow | Blue | Magenta | Yellow | Blue |
| PLA | 100% | 0% | 0% | 100% | 0% | 0% | 0% | PLA-CNC(1%)-UM | 53% | 42% | 5% | 77% | 22% | 1% | 70% | PLA-CNC(3%)-UM | 92% | 3% | 5% | 0% | 89% | 11% | 108% |
| PLA-CNC(1%)-DA | 43% | 23% | 34% | 59% | 26% | 14% | 97% | PLA-CNC(3%)-DA | 40% | 38% | 21% | 60% | 26% | 14% | 100% |
| PLA-CNC(1%)-CTAB | 100% | 0% | 0% | 100% | 0% | 0% | 0% | PLA-CNC(3%)-CTAB | 97% | 1% | 2% | 95% | 2% | 3% | 8% |
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