Fig. 2.
SEM images of (A) 1% (w/v) GRS + 5% (w/v) PVA, (B) 2% (w/v) GRS + 5% (w/v) PVA, (C) 3% (w/v) GRS + 5% (w/v) PVA, (D) 1% (w/v) GRS + 8% (w/v) PVA, (E) 2% (w/v) GRS + 8% (w/v) PVA, (F) 3% (w/v) GRS + 8% (w/v) PVA, (G) 1% (w/v) GRS + 10% (w/v) PVA, (H) 2% (w/v) GRS + 10% (w/v) PVA, (I) 2% (w/v) GRS + 8% (w/v) PVA + 1% (w/v) CPM, (J) 2% (w/v) GRS + 8% (w/v) PVA + 2% (w/v) CPM, (K) 2% (w/v) GRS + 8% (w/v) PVA + 3% (w/v) CPM.