Filmes Biodegradáveis: Incorporação de Microfibras e Nanofibras de Celulose Obtidas de Fontes Vegetais

Publicaciones e Investigación

Florencia Cecilia Menegalli¹  Margarita María Andrade Mahecha¹  Delia Rita Tapia Blácido² 

[1] Departamento de Engenharia de Alimentos – Universidade Estadual de Campinas, (UNICAMP).;Departamento de Química, Faculdade de Filosofía, Ciências e Letras, Universidade de São Paulo (USP).;

关键词: filmes biodegradáveis;    microfibras;    microcompósitos;    nanofibras;    nanocompósitos;    celulose;   

DOI  :  10.22490/25394088.593

来源: DOAJ

【 摘 要 】

Different studies have shown that cellulose incorporated into polymeric matrices acts as a reinforcing material that improves the mechanical strength of biodegradable films and, in some cases, the water vapor permeability. The efficacy of this reinforcement is associated with the nature of cellulose, its crystallinity, and the characteristics of the reinforcement/polymeric matrix interface. Studies on cellulose micro and nanofibers as a reinforcing phase in biodegradable films began 15 years ago. Since then there has been an increasing interest in the use of agricultural wastes and in the study of processes for the attainment and incorporation of these materials into polymeric matrices. Thus, this paper presents a literature review on cellulose microfibers and nanofibers as reinforcing materials in biodegradable films based on biopolymers. It addresses topics such as vegetable fibers, due to their lignocellulosic nature; differences between micro and nanofibers; the explored vegetable sources; and the methods developed over the last decade in order to obtain these materials. Finally, a compilation of recent works on biodegradable microcomposites and nanocomposites show promising results in terms of the mechanical and barrier properties of these polymeric structures. The presented information reveals the potential of this area for future research into the development of technology for the production of these materials on an industrial scale and their use as food packaging

【 授权许可】

Unknown