Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives

Autores
Vega Baudrit, José; Navarro Bañón, Virtudes; Vazquez, Patricia Graciela; Martín Martínez, José Miguel
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Three nanosilicas with different silanol contents were prepared by treatment of hydrophilic fumed silica with dimethyldichlorosilane. This treatment reduced the silanol content and produced the particle agglomeration of the nanosilicas. Thermoplastic polyurethane (TPU) adhesives containing nanosilicas were prepared and characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), plate–plate rheology, dynamic mechanical thermal analysis (DMTA), transmission electron microscopy (TEM) and stress–strain testing. Adhesive strength was obtained from T-peel tests of PVC/polyurethane adhesive joints. The addition of hydrophilic nanosilicas favoured the degree of phase separation between the hard (i.e. isocyanate+chain extender) and soft (i.e. polyol) segments in the TPUs; the higher the silanol content on the surface of silica, the higher the degree of phase separation, and the crystallinity of the polyurethane (due to the soft segments) was also increased. Hydrogen bonds between the ester carbonyl groups in the TPU and the silanol groups on the silica surface were created and more favoured by increasing the silanol content. The tensile strength increased and the elongation at break of the polyurethane decreased by increasing the silanol content of the nanosilica. Addition of nanosilica increased the immediate adhesion of the polyurethane adhesives to PVC, irrespective of the silanol content on the nanosilica. The higher the mechanical and the rheological properties of the polyurethanes containing nanosilicas with different silanol content, the higher the final adhesive strength.
Fil: Vega Baudrit, José. Universidad de Costa Rica; Costa Rica
Fil: Navarro Bañón, Virtudes. Universidad de Alicante; España
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Martín Martínez, José Miguel. Universidad de Alicante; España
Materia
A. POLYURETHANE
C. INFRARED SPECTRA
C. RHEOLOGY
D. MECHANICAL PROPERTIES OF ADHESIVES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16946
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/16946
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesivesVega Baudrit, JoséNavarro Bañón, VirtudesVazquez, Patricia GracielaMartín Martínez, José MiguelA. POLYURETHANEC. INFRARED SPECTRAC. RHEOLOGYD. MECHANICAL PROPERTIES OF ADHESIVEShttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Three nanosilicas with different silanol contents were prepared by treatment of hydrophilic fumed silica with dimethyldichlorosilane. This treatment reduced the silanol content and produced the particle agglomeration of the nanosilicas. Thermoplastic polyurethane (TPU) adhesives containing nanosilicas were prepared and characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), plate–plate rheology, dynamic mechanical thermal analysis (DMTA), transmission electron microscopy (TEM) and stress–strain testing. Adhesive strength was obtained from T-peel tests of PVC/polyurethane adhesive joints. The addition of hydrophilic nanosilicas favoured the degree of phase separation between the hard (i.e. isocyanate+chain extender) and soft (i.e. polyol) segments in the TPUs; the higher the silanol content on the surface of silica, the higher the degree of phase separation, and the crystallinity of the polyurethane (due to the soft segments) was also increased. Hydrogen bonds between the ester carbonyl groups in the TPU and the silanol groups on the silica surface were created and more favoured by increasing the silanol content. The tensile strength increased and the elongation at break of the polyurethane decreased by increasing the silanol content of the nanosilica. Addition of nanosilica increased the immediate adhesion of the polyurethane adhesives to PVC, irrespective of the silanol content on the nanosilica. The higher the mechanical and the rheological properties of the polyurethanes containing nanosilicas with different silanol content, the higher the final adhesive strength.Fil: Vega Baudrit, José. Universidad de Costa Rica; Costa RicaFil: Navarro Bañón, Virtudes. Universidad de Alicante; EspañaFil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Martín Martínez, José Miguel. Universidad de Alicante; EspañaElsevier2006-08-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16946Vega Baudrit, José; Navarro Bañón, Virtudes; Vazquez, Patricia Graciela; Martín Martínez, José Miguel; Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives; Elsevier; International Journal of Adhesion and Adhesives; 26; 5; 15-8-2006; 378-3870143-7496enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0143749605000904info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2005.06.004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:09Zoai:ri.conicet.gov.ar:11336/16946instacron: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:34982025-09-29 10:13:10.043CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
title Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
spellingShingle Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
Vega Baudrit, José
A. POLYURETHANE
C. INFRARED SPECTRA
C. RHEOLOGY
D. MECHANICAL PROPERTIES OF ADHESIVES
title_short Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
title_full Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
title_fullStr Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
title_full_unstemmed Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
title_sort Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives
dc.creator.none.fl_str_mv Vega Baudrit, José
Navarro Bañón, Virtudes
Vazquez, Patricia Graciela
Martín Martínez, José Miguel
author Vega Baudrit, José
author_facet Vega Baudrit, José
Navarro Bañón, Virtudes
Vazquez, Patricia Graciela
Martín Martínez, José Miguel
author_role author
author2 Navarro Bañón, Virtudes
Vazquez, Patricia Graciela
Martín Martínez, José Miguel
author2_role author
author
author
dc.subject.none.fl_str_mv A. POLYURETHANE
C. INFRARED SPECTRA
C. RHEOLOGY
D. MECHANICAL PROPERTIES OF ADHESIVES
topic A. POLYURETHANE
C. INFRARED SPECTRA
C. RHEOLOGY
D. MECHANICAL PROPERTIES OF ADHESIVES
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Three nanosilicas with different silanol contents were prepared by treatment of hydrophilic fumed silica with dimethyldichlorosilane. This treatment reduced the silanol content and produced the particle agglomeration of the nanosilicas. Thermoplastic polyurethane (TPU) adhesives containing nanosilicas were prepared and characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), plate–plate rheology, dynamic mechanical thermal analysis (DMTA), transmission electron microscopy (TEM) and stress–strain testing. Adhesive strength was obtained from T-peel tests of PVC/polyurethane adhesive joints. The addition of hydrophilic nanosilicas favoured the degree of phase separation between the hard (i.e. isocyanate+chain extender) and soft (i.e. polyol) segments in the TPUs; the higher the silanol content on the surface of silica, the higher the degree of phase separation, and the crystallinity of the polyurethane (due to the soft segments) was also increased. Hydrogen bonds between the ester carbonyl groups in the TPU and the silanol groups on the silica surface were created and more favoured by increasing the silanol content. The tensile strength increased and the elongation at break of the polyurethane decreased by increasing the silanol content of the nanosilica. Addition of nanosilica increased the immediate adhesion of the polyurethane adhesives to PVC, irrespective of the silanol content on the nanosilica. The higher the mechanical and the rheological properties of the polyurethanes containing nanosilicas with different silanol content, the higher the final adhesive strength.
Fil: Vega Baudrit, José. Universidad de Costa Rica; Costa Rica
Fil: Navarro Bañón, Virtudes. Universidad de Alicante; España
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Martín Martínez, José Miguel. Universidad de Alicante; España
description Three nanosilicas with different silanol contents were prepared by treatment of hydrophilic fumed silica with dimethyldichlorosilane. This treatment reduced the silanol content and produced the particle agglomeration of the nanosilicas. Thermoplastic polyurethane (TPU) adhesives containing nanosilicas were prepared and characterized by FTIR spectroscopy, differential scanning calorimetry (DSC), plate–plate rheology, dynamic mechanical thermal analysis (DMTA), transmission electron microscopy (TEM) and stress–strain testing. Adhesive strength was obtained from T-peel tests of PVC/polyurethane adhesive joints. The addition of hydrophilic nanosilicas favoured the degree of phase separation between the hard (i.e. isocyanate+chain extender) and soft (i.e. polyol) segments in the TPUs; the higher the silanol content on the surface of silica, the higher the degree of phase separation, and the crystallinity of the polyurethane (due to the soft segments) was also increased. Hydrogen bonds between the ester carbonyl groups in the TPU and the silanol groups on the silica surface were created and more favoured by increasing the silanol content. The tensile strength increased and the elongation at break of the polyurethane decreased by increasing the silanol content of the nanosilica. Addition of nanosilica increased the immediate adhesion of the polyurethane adhesives to PVC, irrespective of the silanol content on the nanosilica. The higher the mechanical and the rheological properties of the polyurethanes containing nanosilicas with different silanol content, the higher the final adhesive strength.
publishDate 2006
dc.date.none.fl_str_mv 2006-08-15
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/11336/16946
Vega Baudrit, José; Navarro Bañón, Virtudes; Vazquez, Patricia Graciela; Martín Martínez, José Miguel; Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives; Elsevier; International Journal of Adhesion and Adhesives; 26; 5; 15-8-2006; 378-387
0143-7496
url http://hdl.handle.net/11336/16946
identifier_str_mv Vega Baudrit, José; Navarro Bañón, Virtudes; Vazquez, Patricia Graciela; Martín Martínez, José Miguel; Addition of nanosilicas with different silanol content to thermoplastic polyurethane adhesives; Elsevier; International Journal of Adhesion and Adhesives; 26; 5; 15-8-2006; 378-387
0143-7496
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0143749605000904
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijadhadh.2005.06.004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
_version_ 1844614045595860992
score 13.070432

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