Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 133, Issue 15, Pages -Publisher
WILEY-BLACKWELL
DOI: 10.1002/app.43302
Keywords
biodegradable; nanoparticles; nanowires and nanocrystals; properties and characterization
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Funding
- National Research Council of Argentina (CONICET)
- International Cooperation Project CNR-CONICET [1010, PIP 0014, 0527]
- National Agency of Scientific and Technological Promotion of Argentina [PICT'12 1983]
- National University of Mar del Plata
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Ternary composites were prepared by twin screw extrusion from polybutylene-succinate (PBS), poly(ethylene-glycol) (PEG), and cellulose nanocrystals (CNC). The aim of the work is to improve the physical-mechanical properties of PBS by the addition of CNC. A PEG/CNC masterbatch was prepared in order to achieve a good dispersion of hydrophilic CNC in the hydrophobic PBS. The influence of the nanoparticle content on the polymer properties was studied. Regarding the thermal properties fractioned crystallization phenomena of PEG was observed during cooling from the melt. No significant nucleating effect of the nanocellulose was observed. The material containing 4 wt % of CNC showed the best mechanical performance among the nanocomposites studied due to the combination of high modulus and elongation at break with a low detrimental in strength compared with the PBS/PEG blend. Moreover, no nanocellulose agglomerations were observed in its FESEM micrograph. (C) 2015 Wiley Periodicals, Inc.
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