Rice Husk Filled Polymer Composites

Figure 15

SEM micrographs of husks before and after treatment by NaOH: (a) untreated RH; (b–d) treated RH with NaOH concentration of 2%, 5%, and 10%, respectively; (e) untreated wheat husk; and (f–h) treated wheat husk with NaOH concentration of 2%, 5%, and 10%, respectively [53].