Effect of polyvinyl alcohol on the physicochemical properties of biodegradable starch films

Carlos Alberto Gómez-Aldapa, Gonzalo Velazquez, Miguel C. Gutierrez, Esmeralda Rangel-Vargas, Javier Castro-Rosas, Rocio Yaneli Aguirre-Loredo

Resultado de la investigación: Contribución a una revistaArtículo

1 Cita (Scopus)

Resumen

Biodegradable films based on starches have poor mechanical and barrier properties, limiting their applications as a food packaging material. The combination of two or more polymers allows obtaining new materials with better functional properties. Mixtures at different proportions (0–60%) of polyvinyl alcohol (PVOH) were studied and the effect on water adsorption, water vapor permeability (WVP), mechanical (percentage of elongation at break and tensile strength) and thermal (Tg) properties was evaluated. In all the formulations, both polymers showed a good compatibility during processing and in the resulting material. The addition of PVOH significantly favored the functional properties, improved the gas permeability and the mechanical properties of potato starch films. The formulation containing 60% PVOH (S4P6) showed the best barrier to water vapor, lower density and solubility as well as better mechanical performance. PVOH resulted in potato starch films with suitable properties for possible applications in food packaging and as a biodegradable alternative for the replacement of synthetic packaging materials.

Idioma originalInglés
Número de artículo122027
PublicaciónMaterials Chemistry and Physics
Volumen239
DOI
EstadoPublicada - 1 ene 2020

Huella dactilar

Polyvinyl Alcohol
starches
polyvinyl alcohol
Polyvinyl alcohols
Starch
packaging
potatoes
Packaging materials
Steam
food
Water vapor
water vapor
permeability
Polymers
Mechanical permeability
mechanical properties
formulations
Gas permeability
polymers
tensile strength

Citar esto

Gómez-Aldapa, Carlos Alberto ; Velazquez, Gonzalo ; Gutierrez, Miguel C. ; Rangel-Vargas, Esmeralda ; Castro-Rosas, Javier ; Aguirre-Loredo, Rocio Yaneli. / Effect of polyvinyl alcohol on the physicochemical properties of biodegradable starch films. En: Materials Chemistry and Physics. 2020 ; Vol. 239.
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abstract = "Biodegradable films based on starches have poor mechanical and barrier properties, limiting their applications as a food packaging material. The combination of two or more polymers allows obtaining new materials with better functional properties. Mixtures at different proportions (0–60{\%}) of polyvinyl alcohol (PVOH) were studied and the effect on water adsorption, water vapor permeability (WVP), mechanical (percentage of elongation at break and tensile strength) and thermal (Tg) properties was evaluated. In all the formulations, both polymers showed a good compatibility during processing and in the resulting material. The addition of PVOH significantly favored the functional properties, improved the gas permeability and the mechanical properties of potato starch films. The formulation containing 60{\%} PVOH (S4P6) showed the best barrier to water vapor, lower density and solubility as well as better mechanical performance. PVOH resulted in potato starch films with suitable properties for possible applications in food packaging and as a biodegradable alternative for the replacement of synthetic packaging materials.",
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Effect of polyvinyl alcohol on the physicochemical properties of biodegradable starch films. / Gómez-Aldapa, Carlos Alberto; Velazquez, Gonzalo; Gutierrez, Miguel C.; Rangel-Vargas, Esmeralda; Castro-Rosas, Javier; Aguirre-Loredo, Rocio Yaneli.

En: Materials Chemistry and Physics, Vol. 239, 122027, 01.01.2020.

Resultado de la investigación: Contribución a una revistaArtículo

TY - JOUR

T1 - Effect of polyvinyl alcohol on the physicochemical properties of biodegradable starch films

AU - Gómez-Aldapa, Carlos Alberto

AU - Velazquez, Gonzalo

AU - Gutierrez, Miguel C.

AU - Rangel-Vargas, Esmeralda

AU - Castro-Rosas, Javier

AU - Aguirre-Loredo, Rocio Yaneli

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Biodegradable films based on starches have poor mechanical and barrier properties, limiting their applications as a food packaging material. The combination of two or more polymers allows obtaining new materials with better functional properties. Mixtures at different proportions (0–60%) of polyvinyl alcohol (PVOH) were studied and the effect on water adsorption, water vapor permeability (WVP), mechanical (percentage of elongation at break and tensile strength) and thermal (Tg) properties was evaluated. In all the formulations, both polymers showed a good compatibility during processing and in the resulting material. The addition of PVOH significantly favored the functional properties, improved the gas permeability and the mechanical properties of potato starch films. The formulation containing 60% PVOH (S4P6) showed the best barrier to water vapor, lower density and solubility as well as better mechanical performance. PVOH resulted in potato starch films with suitable properties for possible applications in food packaging and as a biodegradable alternative for the replacement of synthetic packaging materials.

AB - Biodegradable films based on starches have poor mechanical and barrier properties, limiting their applications as a food packaging material. The combination of two or more polymers allows obtaining new materials with better functional properties. Mixtures at different proportions (0–60%) of polyvinyl alcohol (PVOH) were studied and the effect on water adsorption, water vapor permeability (WVP), mechanical (percentage of elongation at break and tensile strength) and thermal (Tg) properties was evaluated. In all the formulations, both polymers showed a good compatibility during processing and in the resulting material. The addition of PVOH significantly favored the functional properties, improved the gas permeability and the mechanical properties of potato starch films. The formulation containing 60% PVOH (S4P6) showed the best barrier to water vapor, lower density and solubility as well as better mechanical performance. PVOH resulted in potato starch films with suitable properties for possible applications in food packaging and as a biodegradable alternative for the replacement of synthetic packaging materials.

KW - Adsorption isotherms

KW - Biodegradable film

KW - Mechanical properties

KW - Starch-polyvinyl alcohol film

KW - Thermal properties

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