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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
11/10/2022 |
Data da última atualização: |
31/01/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NASCIMENTO, J. A. de A.; SANTOS, A, F. dos; SILVA, I. D. L.; FALCÃO, E. H. L.; BRITTO, D. de; VINHAS, G. M. |
Afiliação: |
JOSÉ AUGUSTO DE ALMEIDA NASCIMENTO, UFPE; AMANDA FÉLIX DOS SANTOS, UFPE; IVO DIEGO LIMA SILVA, UFPE; EDUARDO HENRIQUE LAGO FALCÃO, UFPE; DOUGLAS DE BRITTO, CPATSA; GLÓRIA MARIA VINHAS, UFPE. |
Título: |
Physico-chemical, mechanical and morphological properties of biodegradable films based on arrowroot starch and poly(vinyl alcohol). |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Journal of Macromolecular Science, Part B Physics, v. 60, n. 12, p. 1045-1068, 2021. |
DOI: |
https://doi.org/10.1080/00222348.2021.1949836 |
Idioma: |
Inglês |
Conteúdo: |
Biodegradable polymeric blends have been widely studied due to their potential of reducing pollution caused by non-biodegradable materials. The research described here describes a polymer blend that benefits both from the abundance of arrowroot starch (AS) and the good mechanical properties of poly(vinyl alcohol) (PVA). Glycerol (GLY) was used in different proportions as a plasticizer. The addition of GLY improved the mechanical properties of the blends, increasing the elongation at break up to 667%. On the other hand, the GLY addition adversely affected other properties, increasing the water vapor permeability (WVP), solubility and hydrophilic characteristics and reducing the thermal stability and the crystallinity index. The AS/PVA blend without GLY addition showed better physical-chemical properties, having strong chemical interaction between the two kinds of polymeric chains (according FTIR analysis) and a homogeneous morphology (SEM morphological analysis). In general, decreasing the AS content improved the mechanical and WVP properties, the film becoming less hydrophilic. In conclusion, the AS/PVA blends cast films, with or without GLY, are biodegradable materials suitable for packaging applications. |
Palavras-Chave: |
Álcool polivinílico; Amido de araruta; Filme de embalagem; Mistura de polímeros. |
Thesagro: |
Polissacarídeo. |
Thesaurus Nal: |
Arrowroot starch; Packaging films; Polymers; Polysaccharides. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147276/1/Physico-Chemical-Mechanical-and-Morphological-2021.pdf
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Marc: |
LEADER 02222naa a2200301 a 4500 001 2147276 005 2023-01-31 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1080/00222348.2021.1949836$2DOI 100 1 $aNASCIMENTO, J. A. de A. 245 $aPhysico-chemical, mechanical and morphological properties of biodegradable films based on arrowroot starch and poly(vinyl alcohol).$h[electronic resource] 260 $c2021 520 $aBiodegradable polymeric blends have been widely studied due to their potential of reducing pollution caused by non-biodegradable materials. The research described here describes a polymer blend that benefits both from the abundance of arrowroot starch (AS) and the good mechanical properties of poly(vinyl alcohol) (PVA). Glycerol (GLY) was used in different proportions as a plasticizer. The addition of GLY improved the mechanical properties of the blends, increasing the elongation at break up to 667%. On the other hand, the GLY addition adversely affected other properties, increasing the water vapor permeability (WVP), solubility and hydrophilic characteristics and reducing the thermal stability and the crystallinity index. The AS/PVA blend without GLY addition showed better physical-chemical properties, having strong chemical interaction between the two kinds of polymeric chains (according FTIR analysis) and a homogeneous morphology (SEM morphological analysis). In general, decreasing the AS content improved the mechanical and WVP properties, the film becoming less hydrophilic. In conclusion, the AS/PVA blends cast films, with or without GLY, are biodegradable materials suitable for packaging applications. 650 $aArrowroot starch 650 $aPackaging films 650 $aPolymers 650 $aPolysaccharides 650 $aPolissacarídeo 653 $aÁlcool polivinílico 653 $aAmido de araruta 653 $aFilme de embalagem 653 $aMistura de polímeros 700 1 $aSANTOS, A, F. dos 700 1 $aSILVA, I. D. L. 700 1 $aFALCÃO, E. H. L. 700 1 $aBRITTO, D. de 700 1 $aVINHAS, G. M. 773 $tJournal of Macromolecular Science, Part B Physics$gv. 60, n. 12, p. 1045-1068, 2021.
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Embrapa Semiárido (CPATSA) |
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4. | | NASCIMENTO, J. A. de A.; SANTOS, A, F. dos; SILVA, I. D. L.; FALCÃO, E. H. L.; BRITTO, D. de; VINHAS, G. M. Physico-chemical, mechanical and morphological properties of biodegradable films based on arrowroot starch and poly(vinyl alcohol). Journal of Macromolecular Science, Part B Physics, v. 60, n. 12, p. 1045-1068, 2021.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Semiárido. |
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