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Preparation and characterization of starch-based composite films reinforced by cellulose nanofibers.
Int J Biol Macromol. 2018 Sep; 116:272-280.IJ

Abstract

The current study deals with the preparation and characterization of polysaccharide-based biocomposite films acquired by the incorporation of cellulose nanofiber within glycerol plasticized matrix formed by starch. The application of starch-based films is limited due to highly hydrophilic nature and poor mechanical properties. These problems are solved by forming a nanocomposite of thermoplastic starch (TPS) as matrix and cellulose nanofiber (CNF) as reinforcement. CNF is successfully prepared from short henequen fibers which consist of almost 60% cellulose by a chemo-mechanical process. TPS/CNF composite films are prepared by the polymer solution casting method, and their characterizations are obtained by water vapor transmission rate (WVTR), atomic force microscopy (AFM), oxygen transmission rate (OTR), X-ray diffraction, light transmittance and tensile test. The 0.4 wt% CNF loaded TPS films showed approximately the maximum improvement in tensile strength. Tensile strength and elastic modulus increased by up to 80% and 170% respectively. Above 0.5 wt% CNF, tensile strength starts to deteriorate. WVTR and OTR results show improvement in water vapor barrier properties of TPS matrix. The AFM analysis shows the topography of the surface of the nanocomposite. The morphology of nanofibers is studied by using the scanning electron microscopy (SEM) and the transmission electron microscopy (TEM).

Authors+Show Affiliations

Sharif University of Technology, Department of Materials Science and Engineering, P.O. Box: 11365-9466, Tehran, Iran; Federal University of Rio de Janeiro, Department of Materials Science and Engineering, P.O. Box: 68505, 21945-970 Rio de Janeiro, Brazil. Electronic address: m.fazeli@metalmat.ufrj.br.Federal University of Rio de Janeiro, Department of Materials Science and Engineering, P.O. Box: 68505, 21945-970 Rio de Janeiro, Brazil.Department of Biomaterial Engineering, Tonekabon Branch, Islamic Azad University, P.O. Box: 4684161167, Tonekabon, Iran.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29729338

Citation

Fazeli, Mahyar, et al. "Preparation and Characterization of Starch-based Composite Films Reinforced By Cellulose Nanofibers." International Journal of Biological Macromolecules, vol. 116, 2018, pp. 272-280.
Fazeli M, Keley M, Biazar E. Preparation and characterization of starch-based composite films reinforced by cellulose nanofibers. Int J Biol Macromol. 2018;116:272-280.
Fazeli, M., Keley, M., & Biazar, E. (2018). Preparation and characterization of starch-based composite films reinforced by cellulose nanofibers. International Journal of Biological Macromolecules, 116, 272-280. https://doi.org/10.1016/j.ijbiomac.2018.04.186
Fazeli M, Keley M, Biazar E. Preparation and Characterization of Starch-based Composite Films Reinforced By Cellulose Nanofibers. Int J Biol Macromol. 2018;116:272-280. PubMed PMID: 29729338.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preparation and characterization of starch-based composite films reinforced by cellulose nanofibers. AU - Fazeli,Mahyar, AU - Keley,Meysam, AU - Biazar,Esmaeil, Y1 - 2018/05/02/ PY - 2018/02/22/received PY - 2018/04/02/revised PY - 2018/04/30/accepted PY - 2018/5/8/pubmed PY - 2018/10/23/medline PY - 2018/5/6/entrez KW - Biocomposite KW - Cellulose nanofiber KW - Nanocomposite SP - 272 EP - 280 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 116 N2 - The current study deals with the preparation and characterization of polysaccharide-based biocomposite films acquired by the incorporation of cellulose nanofiber within glycerol plasticized matrix formed by starch. The application of starch-based films is limited due to highly hydrophilic nature and poor mechanical properties. These problems are solved by forming a nanocomposite of thermoplastic starch (TPS) as matrix and cellulose nanofiber (CNF) as reinforcement. CNF is successfully prepared from short henequen fibers which consist of almost 60% cellulose by a chemo-mechanical process. TPS/CNF composite films are prepared by the polymer solution casting method, and their characterizations are obtained by water vapor transmission rate (WVTR), atomic force microscopy (AFM), oxygen transmission rate (OTR), X-ray diffraction, light transmittance and tensile test. The 0.4 wt% CNF loaded TPS films showed approximately the maximum improvement in tensile strength. Tensile strength and elastic modulus increased by up to 80% and 170% respectively. Above 0.5 wt% CNF, tensile strength starts to deteriorate. WVTR and OTR results show improvement in water vapor barrier properties of TPS matrix. The AFM analysis shows the topography of the surface of the nanocomposite. The morphology of nanofibers is studied by using the scanning electron microscopy (SEM) and the transmission electron microscopy (TEM). SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/29729338/Preparation_and_characterization_of_starch_based_composite_films_reinforced_by_cellulose_nanofibers_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(18)30875-4 DB - PRIME DP - Unbound Medicine ER -