Effect of Variation Aluminum Oxide Concentration on the Modified Novolac Stalk Composite

Figure 4

SEM of cotton stalk. (a) Untreated composite containing 30% novolac resin. (b) Treated composite containing 30% novolac resin. (c) Treated composite containing 30% novolac resin and 2% aluminum oxide. (d) Treated composite containing 30% novolac resin and 4% aluminum oxide. (e) Treated composite containing 30% novolac resin and 6% aluminum oxide.

(a)

(b)

(c)

(d)

(e)