Skip to Main Content
Preparation and characterization of the nanocomposites from chemically modified nanocellulose and poly(lactic acid)Author(s): Liqing Wei; Shupin Luo; Armando G. McDonald; Umesh P. Agarwal; Kolby C. Hirth; Laurent M. Matuana; Ronald C. Sabo; Nicole M. Stark
Source: Journal of Renewable Materials. 5(5): 410-422.
Publication Series: Scientific Journal (JRNL)
Station: Forest Products Laboratory
View PDF (1020.0 KB)
Related Research Highlights
Improving biopolymers for packaging applications using surface-tailored cellulose nanocrystals
DescriptionCellulose nanocrystals (CNCs) are renewable and sustainable filler for polymeric nanocomposites. However, their high hydrophilicity limits their use with hydrophobic polymer for composite materials. In this study, freeze-dried CNCs were modified by transesterification with canola oil fatty acid methyl ester to reduce the hydrophilicity. The transesterified CNCs (CNCFE) were compounded with PLA into nanocomposites. CNCFE with long-chain hydrocarbons plays a role as plasticizer. Increasing CNCFE loadings resulted in clear plasticizing effects. Lower Tg and Tm were achieved for CNCFE-based nanocomposites. Plasticizing nanocomposite melt with CNCFE can mitigate the degradation of CNCs during thermal processing. The elongation at break of nanocomposites containing 5% CNCFE was increased. Dynamic rheological study showed the highest elastic and viscous moduli (G′ and G″) and complex viscosity (G*) of nanocomposites with addition of 2% CNCFE. By tailoring the loadings of the transesterified CNCs, tunable structure and properties of nanocomposites can be obtained.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationWei, Liqing; Luo, Shupin; McDonald, Armando G.; Agarwal, Umesh P.; Hirth, Kolby C.; Matuana, Laurent M.; Sabo, Ronald C.; Stark, Nicole M. 2017. Preparation and characterization of the nanocomposites from chemically modified nanocellulose and poly(lactic acid). Journal of Renewable Materials. 5(5): 410-422.
KeywordsNanocellulose, modification, nanocomposites, characterization
- Rheological behavior of highly loaded cellulose nanocrystal/poly(vinyl alcohol) composite suspensions
- Nanocomposites from lignin-containing cellulose nanocrystals and poly(lactic acid)
- Enhanced thermal stability of biomedical thermoplastic polyurethane with the addition of cellulose nanocrystals
XML: View XML