Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry

Natural polymer-based adhesives are green alternatives, necessary to reduce the problems impacted by synthetic adhesives. Starch and gelatin have extraordinary potential for the synthesis of biobased adhesives. Citric acid (CA), a natural acid, induces the crosslinking and hydrolyzing of both gelati...

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Autores principales: Monroy, Yuliana, Rivero, Sandra, García, María Alejandra
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Química
biobased adhesives
rheological behavior
citric acid
adhesive capacity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/159963
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-159963
record_format dspace
spelling I19-R120-10915-1599632023-11-08T20:07:33Z http://sedici.unlp.edu.ar/handle/10915/159963 Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry Monroy, Yuliana Rivero, Sandra García, María Alejandra 2023 2023-11-08T18:33:54Z en Química biobased adhesives rheological behavior citric acid adhesive capacity Natural polymer-based adhesives are green alternatives, necessary to reduce the problems impacted by synthetic adhesives. Starch and gelatin have extraordinary potential for the synthesis of biobased adhesives. Citric acid (CA), a natural acid, induces the crosslinking and hydrolyzing of both gelatin and starch. In this sense, this work deals with the use of gelatin capsule residues as a promising material to produce biobased adhesives in combination with cassava starch in the presence of different CA concentrations characterizing their mechanical, physicochemical and microstructural properties. Depending on CA concentration, formulations adjusted to different applications can be obtained such as liquid and pressure-sensitive adhesive films. The inclusion of CA allows us not only to improve the applicability of the system since it modifies the flowability of the adhesives as evidenced by the observed changes in the viscosity (from 158.3 to 90.3 for formulations with 20 and 80% CA, respectively). In addition, mechanical profiles showed that the inclusion of CA increased the adhesive bond strength (from 2230.7 to 2638.7 for formulations with 20 and 80% CA, respectively). Structural modifications induced by CA in adhesive formulations were highlighted by ATR-FTIR analysis. Centro de Investigación y Desarrollo en Criotecnología de Alimentos Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
biobased adhesives
rheological behavior
citric acid
adhesive capacity
spellingShingle Química
biobased adhesives
rheological behavior
citric acid
adhesive capacity
Monroy, Yuliana
Rivero, Sandra
García, María Alejandra
Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
topic_facet Química
biobased adhesives
rheological behavior
citric acid
adhesive capacity
description Natural polymer-based adhesives are green alternatives, necessary to reduce the problems impacted by synthetic adhesives. Starch and gelatin have extraordinary potential for the synthesis of biobased adhesives. Citric acid (CA), a natural acid, induces the crosslinking and hydrolyzing of both gelatin and starch. In this sense, this work deals with the use of gelatin capsule residues as a promising material to produce biobased adhesives in combination with cassava starch in the presence of different CA concentrations characterizing their mechanical, physicochemical and microstructural properties. Depending on CA concentration, formulations adjusted to different applications can be obtained such as liquid and pressure-sensitive adhesive films. The inclusion of CA allows us not only to improve the applicability of the system since it modifies the flowability of the adhesives as evidenced by the observed changes in the viscosity (from 158.3 to 90.3 for formulations with 20 and 80% CA, respectively). In addition, mechanical profiles showed that the inclusion of CA increased the adhesive bond strength (from 2230.7 to 2638.7 for formulations with 20 and 80% CA, respectively). Structural modifications induced by CA in adhesive formulations were highlighted by ATR-FTIR analysis.
format Articulo
Articulo
author Monroy, Yuliana
Rivero, Sandra
García, María Alejandra
author_facet Monroy, Yuliana
Rivero, Sandra
García, María Alejandra
author_sort Monroy, Yuliana
title Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
title_short Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
title_full Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
title_fullStr Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
title_full_unstemmed Liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
title_sort liquid and pressure-sensitive adhesives based on cassava starch and gelatin capsule residue: green alternatives for the packaging industry
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/159963
work_keys_str_mv AT monroyyuliana liquidandpressuresensitiveadhesivesbasedoncassavastarchandgelatincapsuleresiduegreenalternativesforthepackagingindustry
AT riverosandra liquidandpressuresensitiveadhesivesbasedoncassavastarchandgelatincapsuleresiduegreenalternativesforthepackagingindustry
AT garciamariaalejandra liquidandpressuresensitiveadhesivesbasedoncassavastarchandgelatincapsuleresiduegreenalternativesforthepackagingindustry
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