Effect of Chemical Treatment on Mechanical and Water-Sorption Properties Coconut Fiber-Unsaturated Polyester from Recycled PET

Figure 7

SEM micrographs of fiber surface for the (a) untreated CF, (b) alkali treated CF, (c) silane treated CF, and (d) silane treated on alkalized CF.

(a)

(b)

(c)

(d)