Figure 5.

Physical properties of the CNF–oil composite films: (a) photograph showing the transparency of the films (87 wt % oil); (b) optical transmission of films at the visible-wavelength range and mass attenuation coefficient of composite films at λ = 700 nm; (c) optical transmission of films in the UV-spectral range; (d) experimental and fitted dynamic contact angle of composite films: the solid lines were obtained by fitting eq 3 to the experimental data (spheres); (f–e) uniaxial tensile properties of films with different oil contents; and (g–i) thermal properties of films.