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http://repositorio.ufla.br/jspui/handle/1/42743| Título: | Effect of carboxymethyl cellulose concentration on mechanical and water vapor barrier properties of corn starch films |
| Palavras-chave: | 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 |
| Data do documento: | 15-Out-2020 |
| Editor: | Elsevier |
| Citação: | 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. |
| Resumo: | 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 |
| Aparece nas coleções: | DEG - Artigos publicados em periódicos |
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