The crystallization, mechanical and biodegradation properties of poly(lactic acid)/natural rub-ber/cellulose nanocrystals (CNC) bionanocomposites were evaluated. Three types of CNC were used in thisstudy, one unmodified (CNC), long alkyl chain grafted CNC (C18-g-CNC) and PLA grafted CNC (PLA-g-CNC).The CNC modifications determined the affinity of the nanocrystals toward the polymers and reflectedon the ultimate properties. Interestingly, PLA-g-CNC acted as a nucleating agent for the PLA matrixin the bio-based PLA/NR blend. Good mechanical properties were reported, as the bionanocompositesmaintained a high elongation at break for a concentration up to 3 wt.% of cellulose nanocrystals. More-over, the disintegration study confirmed that the materials completely disintegrated after one month incompost.

Poly(lactic acid)/Natural rubber/Cellulose nanocrystal bionanocomposites Part II. Properties evaluation.

FORTUNATI, ELENA;KENNY, Jose Maria;TORRE, Luigi;
2013

Abstract

The crystallization, mechanical and biodegradation properties of poly(lactic acid)/natural rub-ber/cellulose nanocrystals (CNC) bionanocomposites were evaluated. Three types of CNC were used in thisstudy, one unmodified (CNC), long alkyl chain grafted CNC (C18-g-CNC) and PLA grafted CNC (PLA-g-CNC).The CNC modifications determined the affinity of the nanocrystals toward the polymers and reflectedon the ultimate properties. Interestingly, PLA-g-CNC acted as a nucleating agent for the PLA matrixin the bio-based PLA/NR blend. Good mechanical properties were reported, as the bionanocompositesmaintained a high elongation at break for a concentration up to 3 wt.% of cellulose nanocrystals. More-over, the disintegration study confirmed that the materials completely disintegrated after one month incompost.
2013
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1222479
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