Fig. 2. XRD pattern of chitin based PU bio-nanocomposites varying bentonite nanoclay contents, (a) PUBNC-1; without bentonite nanoclay, (b) PUBNC-2; 1.0% bentonite
nanoclay, (c) PUBNC-3; 2.0% bentonite nanoclay, (d) PUBNC-4; 4.0% bentonite nanoclay and (e) PUBNC-5; 8.0% bentonite nanoclay.