Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/42743
Title: Effect of carboxymethyl cellulose concentration on mechanical and water vapor barrier properties of corn starch films
Keywords: Polymer blends
Biodegradable films
Packaging
Tensile strength
Thermal stability
Water vapor permeability
Misturas de polímeros
Filmes biodegradáveis
Embalagem
Resistência à tração
Estabilidade térmica
Permeabilidade ao vapor de água
Issue Date: 15-Oct-2020
Publisher: Elsevier
Citation: TAVARES, K. M. et al. Effect of carboxymethyl cellulose concentration on mechanical and water vapor barrier properties of corn starch films. Carbohydrate Polymers, Barking, v. 246, 116521, 15 Oct. 2020.
Abstract: The main objective of this study was to evaluate the effect of the addition of different concentrations of CMC (0, 20, 40, 60, 80 and 100 %) on the mechanical and water vapor barrier properties in corn starch films produced by casting. The addition of CMC 40 % was sufficient to significantly increase its mechanical properties (tensile strength, elongation at break and elastic modulus), and water vapor barrier of the starch films, thus improving its functionality as a packaging material for food. CMC incorporation led to a small reduction in the thermal stability of the films. CMC in low content dispersed well in the starch matrix, ensuring interaction between its constituents that formed a network structure, thus improving mechanical properties and making diffusion of water difficult.
URI: https://www.sciencedirect.com/science/article/abs/pii/S0144861720306950#!
http://repositorio.ufla.br/jspui/handle/1/42743
Appears in Collections:DEG - Artigos publicados em periódicos

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