Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier

Autores
Martínez, Juan David; Gómez Hoyos, Catalina; Restrepo Cadavid, Daniel; Gañán Rojo, Piedad Felisinda
Año de publicación
2009
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Phenol is an expensive and toxic raw material derived from petroleum, for these reasons, it’s necessary to take a look for alternative materials in order to replace it. Lignin represents a good choice, especially in phenolic resins obtained from the polycondensation reaction between formaldehyde and an excess of phenol. As an analytical technique for the curing study, the Fourier transform infrared spectroscopy (FT-IR) was used. Unmodified novolac resin (PF) and four lignin modified resins were analyzed. Lignin modified resins correspond to: lignin isolated at pH4 (PFL), lignin isolated at pH2 (PFLpH2), phenolated lignin (PFLFen) and demethylated lignin (PFLDes). Samples were cured at two different concentrations of HTMA. Curing analysis includes conversion curves. According with these results, non-significant variations on final conversion of PFLFen respect to PF were observed. For other resin samples, reductions on the final conversion were observed. On the other hand for all samples, when the weight percentage of HMTA increases reductions on the cure conversion were observed.
Fil: Martínez, Juan David. Universidad Pontificia Bolivariana; Bolivia
Fil: Gómez Hoyos, Catalina. Universidad Pontificia Bolivariana; Bolivia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Restrepo Cadavid, Daniel. Universidad Pontificia Bolivariana; Bolivia
Fil: Gañán Rojo, Piedad Felisinda. Universidad Pontificia Bolivariana; Bolivia
Materia
Novolac
Lignin
FTIR
Cure
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/21462
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourierMartínez, Juan DavidGómez Hoyos, CatalinaRestrepo Cadavid, DanielGañán Rojo, Piedad FelisindaNovolacLigninFTIRCurehttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Phenol is an expensive and toxic raw material derived from petroleum, for these reasons, it’s necessary to take a look for alternative materials in order to replace it. Lignin represents a good choice, especially in phenolic resins obtained from the polycondensation reaction between formaldehyde and an excess of phenol. As an analytical technique for the curing study, the Fourier transform infrared spectroscopy (FT-IR) was used. Unmodified novolac resin (PF) and four lignin modified resins were analyzed. Lignin modified resins correspond to: lignin isolated at pH4 (PFL), lignin isolated at pH2 (PFLpH2), phenolated lignin (PFLFen) and demethylated lignin (PFLDes). Samples were cured at two different concentrations of HTMA. Curing analysis includes conversion curves. According with these results, non-significant variations on final conversion of PFLFen respect to PF were observed. For other resin samples, reductions on the final conversion were observed. On the other hand for all samples, when the weight percentage of HMTA increases reductions on the cure conversion were observed.Fil: Martínez, Juan David. Universidad Pontificia Bolivariana; BoliviaFil: Gómez Hoyos, Catalina. Universidad Pontificia Bolivariana; Bolivia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Restrepo Cadavid, Daniel. Universidad Pontificia Bolivariana; BoliviaFil: Gañán Rojo, Piedad Felisinda. Universidad Pontificia Bolivariana; BoliviaUniversidad Simón Bolívar2009-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21462Martínez, Juan David; Gómez Hoyos, Catalina; Restrepo Cadavid, Daniel; Gañán Rojo, Piedad Felisinda; Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier; Universidad Simón Bolívar; Revista Latinoamericana de Metalurgia y Materiales; S1; 3; 7-2009; 1171-11790255-69522244-7113CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.rlmm.org/library.phpinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:51:50Zoai:ri.conicet.gov.ar:11336/21462instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:51:50.781CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
title Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
spellingShingle Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
Martínez, Juan David
Novolac
Lignin
FTIR
Cure
title_short Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
title_full Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
title_fullStr Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
title_full_unstemmed Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
title_sort Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier
dc.creator.none.fl_str_mv Martínez, Juan David
Gómez Hoyos, Catalina
Restrepo Cadavid, Daniel
Gañán Rojo, Piedad Felisinda
author Martínez, Juan David
author_facet Martínez, Juan David
Gómez Hoyos, Catalina
Restrepo Cadavid, Daniel
Gañán Rojo, Piedad Felisinda
author_role author
author2 Gómez Hoyos, Catalina
Restrepo Cadavid, Daniel
Gañán Rojo, Piedad Felisinda
author2_role author
author
author
dc.subject.none.fl_str_mv Novolac
Lignin
FTIR
Cure
topic Novolac
Lignin
FTIR
Cure
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Phenol is an expensive and toxic raw material derived from petroleum, for these reasons, it’s necessary to take a look for alternative materials in order to replace it. Lignin represents a good choice, especially in phenolic resins obtained from the polycondensation reaction between formaldehyde and an excess of phenol. As an analytical technique for the curing study, the Fourier transform infrared spectroscopy (FT-IR) was used. Unmodified novolac resin (PF) and four lignin modified resins were analyzed. Lignin modified resins correspond to: lignin isolated at pH4 (PFL), lignin isolated at pH2 (PFLpH2), phenolated lignin (PFLFen) and demethylated lignin (PFLDes). Samples were cured at two different concentrations of HTMA. Curing analysis includes conversion curves. According with these results, non-significant variations on final conversion of PFLFen respect to PF were observed. For other resin samples, reductions on the final conversion were observed. On the other hand for all samples, when the weight percentage of HMTA increases reductions on the cure conversion were observed.
Fil: Martínez, Juan David. Universidad Pontificia Bolivariana; Bolivia
Fil: Gómez Hoyos, Catalina. Universidad Pontificia Bolivariana; Bolivia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Restrepo Cadavid, Daniel. Universidad Pontificia Bolivariana; Bolivia
Fil: Gañán Rojo, Piedad Felisinda. Universidad Pontificia Bolivariana; Bolivia
description Phenol is an expensive and toxic raw material derived from petroleum, for these reasons, it’s necessary to take a look for alternative materials in order to replace it. Lignin represents a good choice, especially in phenolic resins obtained from the polycondensation reaction between formaldehyde and an excess of phenol. As an analytical technique for the curing study, the Fourier transform infrared spectroscopy (FT-IR) was used. Unmodified novolac resin (PF) and four lignin modified resins were analyzed. Lignin modified resins correspond to: lignin isolated at pH4 (PFL), lignin isolated at pH2 (PFLpH2), phenolated lignin (PFLFen) and demethylated lignin (PFLDes). Samples were cured at two different concentrations of HTMA. Curing analysis includes conversion curves. According with these results, non-significant variations on final conversion of PFLFen respect to PF were observed. For other resin samples, reductions on the final conversion were observed. On the other hand for all samples, when the weight percentage of HMTA increases reductions on the cure conversion were observed.
publishDate 2009
dc.date.none.fl_str_mv 2009-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/21462
Martínez, Juan David; Gómez Hoyos, Catalina; Restrepo Cadavid, Daniel; Gañán Rojo, Piedad Felisinda; Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier; Universidad Simón Bolívar; Revista Latinoamericana de Metalurgia y Materiales; S1; 3; 7-2009; 1171-1179
0255-6952
2244-7113
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21462
identifier_str_mv Martínez, Juan David; Gómez Hoyos, Catalina; Restrepo Cadavid, Daniel; Gañán Rojo, Piedad Felisinda; Evaluación del curado de resinas fenólicas tipo novolaca modificadas con lignina por espectroscopia infrarroja por transformada de fourier; Universidad Simón Bolívar; Revista Latinoamericana de Metalurgia y Materiales; S1; 3; 7-2009; 1171-1179
0255-6952
2244-7113
CONICET Digital
CONICET
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.rlmm.org/library.php
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidad Simón Bolívar
publisher.none.fl_str_mv Universidad Simón Bolívar
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.221938

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