Green composites based on thermoplastic starch reinforced with micro- and nano-cellulose by melt blending - A review.

Autor: Cataño FA; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros, Chile., Moreno-Serna V; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros, Chile; Química y Farmacia, Facultad de Ciencias de la Salud, Universidad Arturo Prat, Casilla 121, Iquique 1100000, Chile., Cament A; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros, Chile., Loyo C; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros, Chile; Yachay Tech University, School of Chemical Sciences and Engineering, Hda. San José s/n y Proyecto Yachay, 100119, Urcuquí, Ecuador., Yáñez-S M; Departamento de Ciencias Biológicas y Químicas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Avenida Rudecindo Ortega 2950, Campus San Pablo II, Chile., Ortiz JA; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Laboratorio Química de Biomateriales, Chile. Electronic address: jonathan.ortizn@usach.cl., Zapata PA; Universidad de Santiago de Chile (USACH), Facultad de Química y Biología, Departamento de Ciencias del Ambiente, Grupo Polímeros, Chile. Electronic address: paula.zapata@usach.cl.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Sep 01; Vol. 248, pp. 125939. Date of Electronic Publication: 2023 Jul 22.
DOI: 10.1016/j.ijbiomac.2023.125939
Abstrakt: Starch is a biodegradable biopolymer, a sustainable material that can replace conventional petrochemical-based plastics. However, starch has some limitations, as it must be processed by heating and treated mechanically with a plasticizer to become thermoplastic starch (TPS). Different variables such as mixing speeds, amount, and kind of plasticizers play a vital role in preparing TPS by melting. Despite this, the properties of the TPS are not comparable with those of traditional plastics. To overcome this limitation, microcellulose or nanocellulose is added to TPS by melt mixing, including the extrusion and internal mixing process, which enables large-scale production. This review aims to compile several studies that evaluate the effect of plasticizers, as well as the relevance of incorporating different cellulosic fillers of different dimensions on the properties of TPS obtained by melt mixing. Potential applications of these materials in food packaging, biomedical applications, and other opportunities are also described.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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