Journal
JOURNAL OF POLYMERS AND THE ENVIRONMENT
Volume 26, Issue 5, Pages 1869-1880Publisher
SPRINGER
DOI: 10.1007/s10924-017-1089-z
Keywords
Sisal fibres; Castor oil; Cellulose nanocrystals; Waterborne polyurethanes; Nanocomposite
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Funding
- Basque Country Government [IT-776-13]
- Spanish Ministry of Economy and Competitiveness (MINECO) [KK-2016/00043, MAT2013-43076-R]
- European Union-FP7-PIRSES-GA-BIOPURFIL program
- Basque Government [BFI-2010-210]
- National Agency for the Promotion of Science and Technology of Argentina [PICT 2013-1535]
- National Research Council of Argentina, CONICET [PIP 00866]
- Universidad Nacional de Mar del Plata [15/G430-ING436/15]
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Cellulose nanocrystals (CNC) were isolated from sisal fibres and were incorporated in the form of an aqueous suspension to a waterborne polyurethane (WBPU) synthesized from components derived from natural sources using an aliphatic diisocyanate. Transparent nanocomposite films with different CNC contents were prepared using a casting method. The morphology, thermal behaviour and mechanical properties of the nanocomposite films were characterized. Homogeneous distribution of CNC in the WBPU, even at high CNC contents was observed, resulting in an increase of 100% in modulus for systems with 5 and 10 wt% of CNC, with high elongations around 650%.
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