Bacterial cellulose/poly(3-hydroxybutyrate) composite membranes
Carregando...
Fontes externas
Fontes externas
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Elsevier
Elsevier
Tipo
Artigo
Direito de acesso
Acesso restrito
Fontes externas
Fontes externas
Resumo
Bacterial cellulose (BC)/poly(3-hydroxybutyrate) (PHB) composite membranes were prepared from chloroform-swollen BC membranes and PHB chloroform solutions. Relative contents were varied from 25 to 90 wt.% of PHB. Macroscopically homogeneous composite membranes were characterized by scanning electron microscopy, Fourier-transformed infrared spectroscopy, X rays diffraction, thermal analysis and stress-strain measurements. Depending on the relative compositions membranes coating of BC microfibrils by PHB and PHB precipitation inside the BC 3 D network of cellulose fibers could be observed. Improved mechanical properties were observed for the composites compared to the individual components suggesting potential applications for the new biodegradable materials. (C) 2010 Elsevier Ltd. All rights reserved.
Descrição
Palavras-chave
Idioma
Inglês
Citação
Carbohydrate Polymers. Oxford: Elsevier B.V., v. 83, n. 3, p. 1279-1284, 2011.
