Green antifungal waterborne coatings based on essential oil microcapsules

Autores
Revuelta, Mariana Valeria; Bogdan, Sofía; Gámez Espinosa, Erasmo; Deyá, Marta Cecilia; Romagnoli, Roberto
Año de publicación
2020
Idioma
español castellano
Tipo de recurso
artículo
Estado
versión publicada
Descripción
There is a great concern about the indoor microbial colonization especially in places that should have high standards of environmental hygiene. Besides, due it shortened the useful life of the coating by discoloration and degradation. Currently this is a problem that must be solved in an innovative and eco-friendly way. In this sense, the aim of the work was to develop a green waterborne paint formulated with microcapsules containing es- sentials oil as biocide agent. This novel hygienic coating would be applied as to protect indoor surfaces from fungi. The microcapsules were synthesized by interfacial polymerization. Melamine-formaldehyde (MF) resin was used for the microcapsule shell wall, and Lavandin and Tea Tree essential oils (EOs) as core materials. The synthesized microcapsules were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and particle size analysis. Preparation of acrylic waterborne paint was performed and the micro- capsules MF-EOs were dispersed into the original paint just before application on commercial gypsum boards. The stability of the MF-EOs in the paint was successfully achieved. Two control paints were used, one containing EOs in free form and other without biocide. The effectiveness of the microcapsules into paint film against spore suspension of Aspergillus fumigatus was evaluated by seeding the fungus on the painted surface. The fungal growth was evaluated according to ASTM D5590 standard specification. The score obtained from MF-Lavandin paint indicates just a trace growth onto the painted surface (<10 %). On the control and MF-Tea tree paints the growth was 70 %. The MF-Lavandin showed a high inhibition activity against fungal in the dry paint film compared with the one containing free form EOs paint.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Facultad de Ciencias Exactas
Facultad de Ingeniería
Materia
Química
Melamine-formaldehyde microcapsule
Essential oil
Aspergillus fumigatus
Antifungal waterborne coating
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/120453
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/120453
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Green antifungal waterborne coatings based on essential oil microcapsulesRevuelta, Mariana ValeriaBogdan, SofíaGámez Espinosa, ErasmoDeyá, Marta CeciliaRomagnoli, RobertoQuímicaMelamine-formaldehyde microcapsuleEssential oilAspergillus fumigatusAntifungal waterborne coatingThere is a great concern about the indoor microbial colonization especially in places that should have high standards of environmental hygiene. Besides, due it shortened the useful life of the coating by discoloration and degradation. Currently this is a problem that must be solved in an innovative and eco-friendly way. In this sense, the aim of the work was to develop a green waterborne paint formulated with microcapsules containing es- sentials oil as biocide agent. This novel hygienic coating would be applied as to protect indoor surfaces from fungi. The microcapsules were synthesized by interfacial polymerization. Melamine-formaldehyde (MF) resin was used for the microcapsule shell wall, and Lavandin and Tea Tree essential oils (EOs) as core materials. The synthesized microcapsules were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and particle size analysis. Preparation of acrylic waterborne paint was performed and the micro- capsules MF-EOs were dispersed into the original paint just before application on commercial gypsum boards. The stability of the MF-EOs in the paint was successfully achieved. Two control paints were used, one containing EOs in free form and other without biocide. The effectiveness of the microcapsules into paint film against spore suspension of Aspergillus fumigatus was evaluated by seeding the fungus on the painted surface. The fungal growth was evaluated according to ASTM D5590 standard specification. The score obtained from MF-Lavandin paint indicates just a trace growth onto the painted surface (<10 %). On the control and MF-Tea tree paints the growth was 70 %. The MF-Lavandin showed a high inhibition activity against fungal in the dry paint film compared with the one containing free form EOs paint.Centro de Investigación y Desarrollo en Tecnología de PinturasFacultad de Ciencias ExactasFacultad de Ingeniería2020-11-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/120453spainfo:eu-repo/semantics/altIdentifier/issn/0300-9440info:eu-repo/semantics/altIdentifier/doi/10.1016/j.porgcoat.2020.106101info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-17T10:11:12Zoai:sedici.unlp.edu.ar:10915/120453Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-17 10:11:13.095SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Green antifungal waterborne coatings based on essential oil microcapsules
title Green antifungal waterborne coatings based on essential oil microcapsules
spellingShingle Green antifungal waterborne coatings based on essential oil microcapsules
Revuelta, Mariana Valeria
Química
Melamine-formaldehyde microcapsule
Essential oil
Aspergillus fumigatus
Antifungal waterborne coating
title_short Green antifungal waterborne coatings based on essential oil microcapsules
title_full Green antifungal waterborne coatings based on essential oil microcapsules
title_fullStr Green antifungal waterborne coatings based on essential oil microcapsules
title_full_unstemmed Green antifungal waterborne coatings based on essential oil microcapsules
title_sort Green antifungal waterborne coatings based on essential oil microcapsules
dc.creator.none.fl_str_mv Revuelta, Mariana Valeria
Bogdan, Sofía
Gámez Espinosa, Erasmo
Deyá, Marta Cecilia
Romagnoli, Roberto
author Revuelta, Mariana Valeria
author_facet Revuelta, Mariana Valeria
Bogdan, Sofía
Gámez Espinosa, Erasmo
Deyá, Marta Cecilia
Romagnoli, Roberto
author_role author
author2 Bogdan, Sofía
Gámez Espinosa, Erasmo
Deyá, Marta Cecilia
Romagnoli, Roberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Química
Melamine-formaldehyde microcapsule
Essential oil
Aspergillus fumigatus
Antifungal waterborne coating
topic Química
Melamine-formaldehyde microcapsule
Essential oil
Aspergillus fumigatus
Antifungal waterborne coating
dc.description.none.fl_txt_mv There is a great concern about the indoor microbial colonization especially in places that should have high standards of environmental hygiene. Besides, due it shortened the useful life of the coating by discoloration and degradation. Currently this is a problem that must be solved in an innovative and eco-friendly way. In this sense, the aim of the work was to develop a green waterborne paint formulated with microcapsules containing es- sentials oil as biocide agent. This novel hygienic coating would be applied as to protect indoor surfaces from fungi. The microcapsules were synthesized by interfacial polymerization. Melamine-formaldehyde (MF) resin was used for the microcapsule shell wall, and Lavandin and Tea Tree essential oils (EOs) as core materials. The synthesized microcapsules were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and particle size analysis. Preparation of acrylic waterborne paint was performed and the micro- capsules MF-EOs were dispersed into the original paint just before application on commercial gypsum boards. The stability of the MF-EOs in the paint was successfully achieved. Two control paints were used, one containing EOs in free form and other without biocide. The effectiveness of the microcapsules into paint film against spore suspension of Aspergillus fumigatus was evaluated by seeding the fungus on the painted surface. The fungal growth was evaluated according to ASTM D5590 standard specification. The score obtained from MF-Lavandin paint indicates just a trace growth onto the painted surface (<10 %). On the control and MF-Tea tree paints the growth was 70 %. The MF-Lavandin showed a high inhibition activity against fungal in the dry paint film compared with the one containing free form EOs paint.
Centro de Investigación y Desarrollo en Tecnología de Pinturas
Facultad de Ciencias Exactas
Facultad de Ingeniería
description There is a great concern about the indoor microbial colonization especially in places that should have high standards of environmental hygiene. Besides, due it shortened the useful life of the coating by discoloration and degradation. Currently this is a problem that must be solved in an innovative and eco-friendly way. In this sense, the aim of the work was to develop a green waterborne paint formulated with microcapsules containing es- sentials oil as biocide agent. This novel hygienic coating would be applied as to protect indoor surfaces from fungi. The microcapsules were synthesized by interfacial polymerization. Melamine-formaldehyde (MF) resin was used for the microcapsule shell wall, and Lavandin and Tea Tree essential oils (EOs) as core materials. The synthesized microcapsules were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy and particle size analysis. Preparation of acrylic waterborne paint was performed and the micro- capsules MF-EOs were dispersed into the original paint just before application on commercial gypsum boards. The stability of the MF-EOs in the paint was successfully achieved. Two control paints were used, one containing EOs in free form and other without biocide. The effectiveness of the microcapsules into paint film against spore suspension of Aspergillus fumigatus was evaluated by seeding the fungus on the painted surface. The fungal growth was evaluated according to ASTM D5590 standard specification. The score obtained from MF-Lavandin paint indicates just a trace growth onto the painted surface (<10 %). On the control and MF-Tea tree paints the growth was 70 %. The MF-Lavandin showed a high inhibition activity against fungal in the dry paint film compared with the one containing free form EOs paint.
publishDate 2020
dc.date.none.fl_str_mv 2020-11-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/120453
url http://sedici.unlp.edu.ar/handle/10915/120453
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0300-9440
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.porgcoat.2020.106101
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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