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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
10/11/2023 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LUCHESI, B. R.; MOREIRA, F. K. V.; MARCONCINI, J. M. |
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Afiliação: |
Nanotechnology National Laboratory for Agriculture (LNNA); Federal University of Sao Carlos; JOSE MANOEL MARCONCINI, CNPDIA. |
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Título: |
Scalable production of hydrophobic starch/beeswax films by continuous solution casting. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Appied Polymer Science, e54730, 2023. |
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Páginas: |
11 p. |
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DOI: |
10.1002/app.54730 |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Continuous solution casting; Scalable production; Water vapor permeation. |
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Categoria do assunto: |
-- |
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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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Embrapa Instrumentação (CNPDIA) |
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