Figure 7

SEM micrographs of the untreated, treated, and aged treated samples with NCF/PVA nanocomposite; (A) aged untreated samples; (B) treated sample with 1% before aging; (C) aged treated sample with 1%; (D) treated sample with 3% before aging; (E) aged treated sample with 3%; (F) treated sample with 5% before aging; (G) accumulation of polymer on the paper surface; (H) aged treated sample at with 5%; (I) presence of cracks within the accumulated polymer on the surface.