PVC paste rheology: Study of process dependencies
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/12709 https://doi.org/10.1002/app.29931 |
Resumo: | A plastisol is a dispersion (suspension) of fine particles of poly(vinyl chloride) with a plasticizer that is normally applied over a substrate, by spreading or coating, before the gelification and fusion into the final product. Because of the first step, the plastisol rheology study is a very important factor which has to be taken into consideration to determine and fine tune the process conditions. This work is concerned with the study of the rheology of plastisols from selected PVC samples produced by the emulsion process, correlating it with the particle size distribution and surface characteristics from the polymer's powder and modifications during the plastisol aging process. The results obtained show a significant influence of the original polymer properties in the viscosity aging and viscoelastic behaviour of the plastisol. First, a significant decrease in viscosity can be achieved by changing a particular surfactant during the polymerization step. Second, the type of particle aggregates present in the powder, can determine the evolution of the particle size in the plastisol which, in turn, correlates directly with the observed modifications in the aging and viscoelastic behavior |
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PVC paste rheology: Study of process dependenciesPVC plastisolRheologyParticle size distributionViscosity agingSurfactantAggregatesOscillatory rheometryA plastisol is a dispersion (suspension) of fine particles of poly(vinyl chloride) with a plasticizer that is normally applied over a substrate, by spreading or coating, before the gelification and fusion into the final product. Because of the first step, the plastisol rheology study is a very important factor which has to be taken into consideration to determine and fine tune the process conditions. This work is concerned with the study of the rheology of plastisols from selected PVC samples produced by the emulsion process, correlating it with the particle size distribution and surface characteristics from the polymer's powder and modifications during the plastisol aging process. The results obtained show a significant influence of the original polymer properties in the viscosity aging and viscoelastic behaviour of the plastisol. First, a significant decrease in viscosity can be achieved by changing a particular surfactant during the polymerization step. Second, the type of particle aggregates present in the powder, can determine the evolution of the particle size in the plastisol which, in turn, correlates directly with the observed modifications in the aging and viscoelastic behaviorWiley Periodicals, Inc2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/12709http://hdl.handle.net/10316/12709https://doi.org/10.1002/app.29931engJournal of Applied Polymer Science. 112:5 (2009) 2809-28210021-8995Rasteiro, M. G.Tomás, A.Ferreira, L.Figueiredo, S.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-11-06T16:48:35Zoai:estudogeral.uc.pt:10316/12709Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:20.987987Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
PVC paste rheology: Study of process dependencies |
title |
PVC paste rheology: Study of process dependencies |
spellingShingle |
PVC paste rheology: Study of process dependencies Rasteiro, M. G. PVC plastisol Rheology Particle size distribution Viscosity aging Surfactant Aggregates Oscillatory rheometry |
title_short |
PVC paste rheology: Study of process dependencies |
title_full |
PVC paste rheology: Study of process dependencies |
title_fullStr |
PVC paste rheology: Study of process dependencies |
title_full_unstemmed |
PVC paste rheology: Study of process dependencies |
title_sort |
PVC paste rheology: Study of process dependencies |
author |
Rasteiro, M. G. |
author_facet |
Rasteiro, M. G. Tomás, A. Ferreira, L. Figueiredo, S. |
author_role |
author |
author2 |
Tomás, A. Ferreira, L. Figueiredo, S. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Rasteiro, M. G. Tomás, A. Ferreira, L. Figueiredo, S. |
dc.subject.por.fl_str_mv |
PVC plastisol Rheology Particle size distribution Viscosity aging Surfactant Aggregates Oscillatory rheometry |
topic |
PVC plastisol Rheology Particle size distribution Viscosity aging Surfactant Aggregates Oscillatory rheometry |
description |
A plastisol is a dispersion (suspension) of fine particles of poly(vinyl chloride) with a plasticizer that is normally applied over a substrate, by spreading or coating, before the gelification and fusion into the final product. Because of the first step, the plastisol rheology study is a very important factor which has to be taken into consideration to determine and fine tune the process conditions. This work is concerned with the study of the rheology of plastisols from selected PVC samples produced by the emulsion process, correlating it with the particle size distribution and surface characteristics from the polymer's powder and modifications during the plastisol aging process. The results obtained show a significant influence of the original polymer properties in the viscosity aging and viscoelastic behaviour of the plastisol. First, a significant decrease in viscosity can be achieved by changing a particular surfactant during the polymerization step. Second, the type of particle aggregates present in the powder, can determine the evolution of the particle size in the plastisol which, in turn, correlates directly with the observed modifications in the aging and viscoelastic behavior |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/12709 http://hdl.handle.net/10316/12709 https://doi.org/10.1002/app.29931 |
url |
http://hdl.handle.net/10316/12709 https://doi.org/10.1002/app.29931 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Polymer Science. 112:5 (2009) 2809-2821 0021-8995 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Wiley Periodicals, Inc |
publisher.none.fl_str_mv |
Wiley Periodicals, Inc |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133884229615616 |