increasing the effective diffusion path length (Yano and others
1997; Cussler and others 1998; Sun and others 2008).
Table 5 also shows that the actual RH value at the inner film
surface of agar/Cloisite Na+ nanocomposite films was significantly
(P < 0.05) higher than the other films, which indirectly indicates
higher water vapor resistance of agar/Cloisite Na+ nanocomposite
films than the other films.