Mechanical and Optical Properties of Polylactic Acid Films Containing Surfactant-Modified Cellulose Nanocrystals

Figure 6

Polarized light microscopy images of the 3% CNC-loaded nanocomposites using a first-order red filter: (a) neat PLA; (b) UM; (c) DA; (d) CTAB. At 0°, 45°, 90°, and 135° rotation angles. Length of the longest side of each image: 1.5 mm.