Starch-leather waste gelatin films cross-linked with glutaraldehyde
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/219701 |
Resumo: | Gelatin extracted from chromium-tanned leather wastes (CTLW) has a lower molar mass because of the more aggressive extraction process needed to disrupt chromium-collagen bonds when compared to gelatin extracted from the bones, skin, and connective tissues of animals. As a consequence, CTLW gelatin is more hydrophilic, thus it is harder to apply in the production of polymers. To overcome this issue, in this study, films produced with starch, CTLW gelatin, commercial gelatin (as a comparative), and their blends were cross-linked with glutaraldehyde. The cross-linking reduced the crystallinity of the films, impairing the reorganization of gelatin chains into a triple helix structure, which balanced the effect of the higher molecular chain, while not altering the films’ tensile strength. It increased the elongation at break and reduced the solubility and the swelling degree by up to 53% and 69%, respectively. These results stand as a great advance for the practical use of starch-CTLW gelatin films. |
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Scopel, Bianca SantinonPretto, Gian LucasCorrêa, Júlia Isadora PostiglioneBaldasso, CamilaDettmer, AlineSantana, Ruth Marlene Campomanes2021-04-09T04:24:51Z20201572-8919http://hdl.handle.net/10183/219701001123787Gelatin extracted from chromium-tanned leather wastes (CTLW) has a lower molar mass because of the more aggressive extraction process needed to disrupt chromium-collagen bonds when compared to gelatin extracted from the bones, skin, and connective tissues of animals. As a consequence, CTLW gelatin is more hydrophilic, thus it is harder to apply in the production of polymers. To overcome this issue, in this study, films produced with starch, CTLW gelatin, commercial gelatin (as a comparative), and their blends were cross-linked with glutaraldehyde. The cross-linking reduced the crystallinity of the films, impairing the reorganization of gelatin chains into a triple helix structure, which balanced the effect of the higher molecular chain, while not altering the films’ tensile strength. It increased the elongation at break and reduced the solubility and the swelling degree by up to 53% and 69%, respectively. These results stand as a great advance for the practical use of starch-CTLW gelatin films.application/pdfengJournal of polymers and the environment [recurso eletrônico]. [Berlin]. Vol. 28 (2020), p. 1974–1984Filmes poliméricosReticulaçãoGlutaraldeídoLeather wasteGelatinStarchGlutaraldehydeCross-linkingStarch-leather waste gelatin films cross-linked with glutaraldehydeEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001123787.pdf.txt001123787.pdf.txtExtracted Texttext/plain46307http://www.lume.ufrgs.br/bitstream/10183/219701/2/001123787.pdf.txt5bfb61c75581f772e6039e49d50c7992MD52ORIGINAL001123787.pdfTexto completo (inglês)application/pdf1076270http://www.lume.ufrgs.br/bitstream/10183/219701/1/001123787.pdf0d31d8ca409187ef70b9be6d4b16c9fbMD5110183/2197012021-05-26 04:37:28.203106oai:www.lume.ufrgs.br:10183/219701Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-26T07:37:28Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
title |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
spellingShingle |
Starch-leather waste gelatin films cross-linked with glutaraldehyde Scopel, Bianca Santinon Filmes poliméricos Reticulação Glutaraldeído Leather waste Gelatin Starch Glutaraldehyde Cross-linking |
title_short |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
title_full |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
title_fullStr |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
title_full_unstemmed |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
title_sort |
Starch-leather waste gelatin films cross-linked with glutaraldehyde |
author |
Scopel, Bianca Santinon |
author_facet |
Scopel, Bianca Santinon Pretto, Gian Lucas Corrêa, Júlia Isadora Postiglione Baldasso, Camila Dettmer, Aline Santana, Ruth Marlene Campomanes |
author_role |
author |
author2 |
Pretto, Gian Lucas Corrêa, Júlia Isadora Postiglione Baldasso, Camila Dettmer, Aline Santana, Ruth Marlene Campomanes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Scopel, Bianca Santinon Pretto, Gian Lucas Corrêa, Júlia Isadora Postiglione Baldasso, Camila Dettmer, Aline Santana, Ruth Marlene Campomanes |
dc.subject.por.fl_str_mv |
Filmes poliméricos Reticulação Glutaraldeído |
topic |
Filmes poliméricos Reticulação Glutaraldeído Leather waste Gelatin Starch Glutaraldehyde Cross-linking |
dc.subject.eng.fl_str_mv |
Leather waste Gelatin Starch Glutaraldehyde Cross-linking |
description |
Gelatin extracted from chromium-tanned leather wastes (CTLW) has a lower molar mass because of the more aggressive extraction process needed to disrupt chromium-collagen bonds when compared to gelatin extracted from the bones, skin, and connective tissues of animals. As a consequence, CTLW gelatin is more hydrophilic, thus it is harder to apply in the production of polymers. To overcome this issue, in this study, films produced with starch, CTLW gelatin, commercial gelatin (as a comparative), and their blends were cross-linked with glutaraldehyde. The cross-linking reduced the crystallinity of the films, impairing the reorganization of gelatin chains into a triple helix structure, which balanced the effect of the higher molecular chain, while not altering the films’ tensile strength. It increased the elongation at break and reduced the solubility and the swelling degree by up to 53% and 69%, respectively. These results stand as a great advance for the practical use of starch-CTLW gelatin films. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-04-09T04:24:51Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/219701 |
dc.identifier.issn.pt_BR.fl_str_mv |
1572-8919 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001123787 |
identifier_str_mv |
1572-8919 001123787 |
url |
http://hdl.handle.net/10183/219701 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of polymers and the environment [recurso eletrônico]. [Berlin]. Vol. 28 (2020), p. 1974–1984 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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