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AFM images of nanocrystal cellulose/EUG composite surface morphologies (a) nanocrystal cellulose; (b) eucommia ulmoides gum; (c) control film; (d) 2% additive amount of nanocrystal cellulose; (e) 4% additive amount of nanocrystal cellulose; (f) 6% additive amount of nanocrystal cellulose; and (g) 8% additive amount of nanocrystal cellulose.
