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Microstructure and nonisothermal cold crystallization of PLA composites based on silver nanoparticles and nanocrystalline cellulose
KTH, School of Biotechnology (BIO), Glycoscience. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0001-9832-027X
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2012 (English)In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 97, no 10, 2027-2036 p.Article in journal (Refereed) Published
Abstract [en]

Poly(lactic acid) (PIA) based high performance nanocomposites, were prepared using an innovative combination of nanocrystalline cellulose and silver nanoparticles. Binary and ternary systems were prepared by solvent casting process and their morphological, mechanical and thermal responses were investigated. Pristine (CNC) and surfactant modified cellulose nanocrystals (s-CNC) and silver (Ag) nanoparticles were used, and the effect of cellulose crystal nano-dimension, cellulose modification, and the combination of cellulose nanostructures with silver nanoparticles, was investigated. The important industrial problem of slow crystallization of PIA was addressed by the use of cellulose nanocrystals as biobased nucleating agents and the nonisothermal cold crystallization behaviour of reinforced binary and ternary systems was studied. The presence of surfactant on the nanocrystal surface favoured the dispersion of CNC in the PLA matrix while the thermal investigations and the nonisothermal crystallization studies underlined the ability of s-CNC to act as nucleation agent in both binary and ternary nanocomposites.

Place, publisher, year, edition, pages
2012. Vol. 97, no 10, 2027-2036 p.
Keyword [en]
Poly(lactic acid), Cellulose nanocrystals, Silver nanoparticles, Mechanical properties, Thermal properties
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-104127DOI: 10.1016/j.polymdegradstab.2012.03.027ISI: 000309087900022ScopusID: 2-s2.0-84865646539OAI: diva2:563285
3rd International Conference on Biodegradable and Biobased Polymers (BIOPOL), AUG 29-31, 2011, Strasbourg, France

QC 20121029

Available from: 2012-10-29 Created: 2012-10-29 Last updated: 2012-10-29Bibliographically approved

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Zhou, QiBerglund, Lars A.
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GlycoscienceWallenberg Wood Science CenterFibre and Polymer Technology
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