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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
10/11/2023 |
Data da última atualização: |
15/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LUCHESI, B. R.; MOREIRA, F. K. V.; MARCONCINI, J. M. |
Afiliação: |
Nanotechnology National Laboratory for Agriculture (LNNA); Federal University of Sao Carlos; JOSE MANOEL MARCONCINI, CNPDIA. |
Título: |
Scalable production of hydrophobic starch/beeswax films by continuous solution casting. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Journal of Appied Polymer Science, e54730, 2023. |
Páginas: |
11 p. |
DOI: |
10.1002/app.54730 |
Idioma: |
Inglês |
Conteúdo: |
Abstract Starch is an appealing natural polymer for the scaled-up production of biodegradable plastics. However, the low water resistance of starch has made its broad applicability largely doubted. In this study, starch was combined with beeswax (BW) through a pilot scale continuous solution casting (CSC) technique to reduce water affinity while keeping the ensuing films totally biodegradable. The phase morphology, surface wettability, and water vapor permeability (WVP) of films were examined over a broad BW?starch mass ratio (0.3?0.7). Emulsified, surfactant-free starch/BW films were successfully obtained at a productivity of 0.55 m2 film h1 . The water contact angle increased nearly by 100% at 30 wt% BW, leading to remarkable reductions in WVP. BW droplets well distributed within the starch matrix played a key role in enhancing the water barrier properties of films. CSC of starch/BW films offers a basis to design new hydrophobic formulations for applications that require biodegradable plastics with high moisture resistance. |
Palavras-Chave: |
Continuous solution casting; Scalable production; Water vapor permeation. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158192/1/P-Scalable-production-of-hydrophobic-starch-beeswax-films.pdf
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Marc: |
LEADER 01672naa a2200205 a 4500 001 2158192 005 2024-01-15 008 2023 bl uuuu u00u1 u #d 024 7 $a10.1002/app.54730$2DOI 100 1 $aLUCHESI, B. R. 245 $aScalable production of hydrophobic starch/beeswax films by continuous solution casting.$h[electronic resource] 260 $c2023 300 $a11 p. 520 $aAbstract Starch is an appealing natural polymer for the scaled-up production of biodegradable plastics. However, the low water resistance of starch has made its broad applicability largely doubted. In this study, starch was combined with beeswax (BW) through a pilot scale continuous solution casting (CSC) technique to reduce water affinity while keeping the ensuing films totally biodegradable. The phase morphology, surface wettability, and water vapor permeability (WVP) of films were examined over a broad BW?starch mass ratio (0.3?0.7). Emulsified, surfactant-free starch/BW films were successfully obtained at a productivity of 0.55 m2 film h1 . The water contact angle increased nearly by 100% at 30 wt% BW, leading to remarkable reductions in WVP. BW droplets well distributed within the starch matrix played a key role in enhancing the water barrier properties of films. CSC of starch/BW films offers a basis to design new hydrophobic formulations for applications that require biodegradable plastics with high moisture resistance. 653 $aContinuous solution casting 653 $aScalable production 653 $aWater vapor permeation 700 1 $aMOREIRA, F. K. V. 700 1 $aMARCONCINI, J. M. 773 $tJournal of Appied Polymer Science, e54730, 2023.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
07/10/1997 |
Data da última atualização: |
01/04/2013 |
Autoria: |
MAGALHAES, P. C.; SILVA, A. F. da. |
Afiliação: |
PAULO CESAR MAGALHAES, CNPMS. |
Título: |
Avaliação fisiológica de cultivares precoces de milho sob irrigação suplementar, em Sete Lagoas, MG. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1988-1991. Sete Lagoas, 1992. p. 117-118. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Maize; Minas Gerais; Sete Lagoas. |
Thesagro: |
Fisiologia; Irrigação; Milho; Zea Mays. |
Thesaurus NAL: |
Brazil; irrigation; plant physiology. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/80171/1/Avaliacao-fisiologica-1.pdf
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Marc: |
LEADER 00834naa a2200253 a 4500 001 1476903 005 2013-04-01 008 1992 bl uuuu u00u1 u #d 100 1 $aMAGALHAES, P. C. 245 $aAvaliação fisiológica de cultivares precoces de milho sob irrigação suplementar, em Sete Lagoas, MG.$h[electronic resource] 260 $c1992 650 $aBrazil 650 $airrigation 650 $aplant physiology 650 $aFisiologia 650 $aIrrigação 650 $aMilho 650 $aZea Mays 653 $aBrasil 653 $aMaize 653 $aMinas Gerais 653 $aSete Lagoas 700 1 $aSILVA, A. F. da 773 $tIn: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1988-1991. Sete Lagoas, 1992. p. 117-118.
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