Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/231518 |
Resumo: | The advantages of heterophasic thermoplastic polyurethanes (TPUs), such as their phase behavior and mechanical properties, make these materials an important class of adhesives. Whereas the amorphous phase contributes to good adhesion properties, the crystalline phase is responsible for the cohesive force of TPU adhesives. This work investigates the performance of a polyester based TPU and its potential for being applied as adhesive in the shoe industry. The TPU was formulated with three different additives. The crystallization kinetics of the TPU was evaluated by Differential Scanning Calorimetry and the Avrami equation was used to assess the influence of the additives on the geometry of crystal growth and nucleation conditions. It was found that the additives had no effect on the nucleation process, whereas the polymer chains had reduced mobility, mainly in the TPU comprising polyisocyanate ε-caprolactam. The best T-peel strength on a poly(vinyl chloride) (PVC) substrate was determined for the TPU with polycarbodiimide, which improved the adhesive bonding from 3.23 N/mm to 3.32 N/mm. |
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Bockorny, Geovana de AvilaPreuss, Núbia LizianiGomes, Carmem Rosane IsseDomingues Junior, Nei SebastiaoForte, Maria Madalena de Camargo2021-11-04T04:24:00Z20181517-7076http://hdl.handle.net/10183/231518001132573The advantages of heterophasic thermoplastic polyurethanes (TPUs), such as their phase behavior and mechanical properties, make these materials an important class of adhesives. Whereas the amorphous phase contributes to good adhesion properties, the crystalline phase is responsible for the cohesive force of TPU adhesives. This work investigates the performance of a polyester based TPU and its potential for being applied as adhesive in the shoe industry. The TPU was formulated with three different additives. The crystallization kinetics of the TPU was evaluated by Differential Scanning Calorimetry and the Avrami equation was used to assess the influence of the additives on the geometry of crystal growth and nucleation conditions. It was found that the additives had no effect on the nucleation process, whereas the polymer chains had reduced mobility, mainly in the TPU comprising polyisocyanate ε-caprolactam. The best T-peel strength on a poly(vinyl chloride) (PVC) substrate was determined for the TPU with polycarbodiimide, which improved the adhesive bonding from 3.23 N/mm to 3.32 N/mm.application/pdfengRevista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 23, n. 4 (2018), Art. e-12247, [14] p.PoliuretanosTermoplásticosCinética de cristalizaçãoTPUPolyurethanePolycarbodiimideAdhesiveCrystallinityBonding properties and crystallization kinetics of thermoplastic polyurethane adhesiveinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001132573.pdf.txt001132573.pdf.txtExtracted Texttext/plain32355http://www.lume.ufrgs.br/bitstream/10183/231518/2/001132573.pdf.txt9a0e80eaf3f66fa699cc6396ff524febMD52ORIGINAL001132573.pdfTexto completoapplication/pdf673907http://www.lume.ufrgs.br/bitstream/10183/231518/1/001132573.pdfb3a99a5f5a6c8cc61c0b2557129ed83dMD5110183/2315182021-11-20 05:53:53.037306oai:www.lume.ufrgs.br:10183/231518Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T07:53:53Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
title |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
spellingShingle |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive Bockorny, Geovana de Avila Poliuretanos Termoplásticos Cinética de cristalização TPU Polyurethane Polycarbodiimide Adhesive Crystallinity |
title_short |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
title_full |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
title_fullStr |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
title_full_unstemmed |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
title_sort |
Bonding properties and crystallization kinetics of thermoplastic polyurethane adhesive |
author |
Bockorny, Geovana de Avila |
author_facet |
Bockorny, Geovana de Avila Preuss, Núbia Liziani Gomes, Carmem Rosane Isse Domingues Junior, Nei Sebastiao Forte, Maria Madalena de Camargo |
author_role |
author |
author2 |
Preuss, Núbia Liziani Gomes, Carmem Rosane Isse Domingues Junior, Nei Sebastiao Forte, Maria Madalena de Camargo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bockorny, Geovana de Avila Preuss, Núbia Liziani Gomes, Carmem Rosane Isse Domingues Junior, Nei Sebastiao Forte, Maria Madalena de Camargo |
dc.subject.por.fl_str_mv |
Poliuretanos Termoplásticos Cinética de cristalização |
topic |
Poliuretanos Termoplásticos Cinética de cristalização TPU Polyurethane Polycarbodiimide Adhesive Crystallinity |
dc.subject.eng.fl_str_mv |
TPU Polyurethane Polycarbodiimide Adhesive Crystallinity |
description |
The advantages of heterophasic thermoplastic polyurethanes (TPUs), such as their phase behavior and mechanical properties, make these materials an important class of adhesives. Whereas the amorphous phase contributes to good adhesion properties, the crystalline phase is responsible for the cohesive force of TPU adhesives. This work investigates the performance of a polyester based TPU and its potential for being applied as adhesive in the shoe industry. The TPU was formulated with three different additives. The crystallization kinetics of the TPU was evaluated by Differential Scanning Calorimetry and the Avrami equation was used to assess the influence of the additives on the geometry of crystal growth and nucleation conditions. It was found that the additives had no effect on the nucleation process, whereas the polymer chains had reduced mobility, mainly in the TPU comprising polyisocyanate ε-caprolactam. The best T-peel strength on a poly(vinyl chloride) (PVC) substrate was determined for the TPU with polycarbodiimide, which improved the adhesive bonding from 3.23 N/mm to 3.32 N/mm. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2021-11-04T04:24:00Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
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/10183/231518 |
dc.identifier.issn.pt_BR.fl_str_mv |
1517-7076 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001132573 |
identifier_str_mv |
1517-7076 001132573 |
url |
http://hdl.handle.net/10183/231518 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista matéria [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 23, n. 4 (2018), Art. e-12247, [14] p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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