Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment

Detalhes bibliográficos
Autor(a) principal: Pangdaeng, S.
Data de Publicação: 2016
Outros Autores: Sata, V., Aguiar, J. L. Barroso de, Pacheco-Torgal, F., Chindaprasirt, J., Chindaprasirt, P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/45846
Resumo: This paper reports that surface treatment with CaCl2 enhances the bioactivity of a calcined kaolin geopolymer. Calcined kaolin, NaOH solution, sodium silicate solution, and heat curing were used to form geopolymer pastes. A soaked-treatment method was applied to the geopolymer samples using CaCl2 solution as the ion exchange agent. The bioactivity of the material was determined by the simulated body fluid (SBF) in vitro testing method. Scanning electron microscope images showed a dense apatite formation on the treated geopolymer surface after SBF immersion for only 3 days. The CaCl2 treatment promoted compressive strength and enhanced bioactivity by accelerating apatite precipitation and slowing down the rise in pH.
id RCAP_1e12db1bc49871fdc16d49d287ddf553
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/45846
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatmentAluminosilicateApatiteMetakaolinSBFScience & TechnologyThis paper reports that surface treatment with CaCl2 enhances the bioactivity of a calcined kaolin geopolymer. Calcined kaolin, NaOH solution, sodium silicate solution, and heat curing were used to form geopolymer pastes. A soaked-treatment method was applied to the geopolymer samples using CaCl2 solution as the ion exchange agent. The bioactivity of the material was determined by the simulated body fluid (SBF) in vitro testing method. Scanning electron microscope images showed a dense apatite formation on the treated geopolymer surface after SBF immersion for only 3 days. The CaCl2 treatment promoted compressive strength and enhanced bioactivity by accelerating apatite precipitation and slowing down the rise in pH.This work was financially supported by the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission, through the Advanced Functional Materials Cluster of Khon Kaen University; and Khon Kaen University and the Thailand Research Fund (TRF) under the TRF-Royal Golden Jubilee Ph. D. program (Grant no. PHD/0143/2554); Post-doctoral training program (Grant no. 58110), Graduate school, Khon Kaen University and TRF Senior Research Scholar Contract No. RTA5780004.info:eu-repo/semantics/publishedVersionThailands Natural Science & Technology Development AgencyUniversidade do MinhoPangdaeng, S.Sata, V.Aguiar, J. L. Barroso dePacheco-Torgal, F.Chindaprasirt, J.Chindaprasirt, P.20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/45846engPangdaeng S., Sata V., Aguiar J. B., Torgal F. P., Chindaprasirt J., Chindaprasirt P. Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment, ScienceAsia, Vol. 42, pp. 407-414, doi:10.2306/scienceasia1513-1874.2016.42.407, 20171513-187410.2306/scienceasia1513-1874.2016.42.407info: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:RCAAP2023-07-21T12:08:03Zoai:repositorium.sdum.uminho.pt:1822/45846Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:59:10.264456Repositório 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 Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
title Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
spellingShingle Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
Pangdaeng, S.
Aluminosilicate
Apatite
Metakaolin
SBF
Science & Technology
title_short Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
title_full Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
title_fullStr Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
title_full_unstemmed Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
title_sort Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment
author Pangdaeng, S.
author_facet Pangdaeng, S.
Sata, V.
Aguiar, J. L. Barroso de
Pacheco-Torgal, F.
Chindaprasirt, J.
Chindaprasirt, P.
author_role author
author2 Sata, V.
Aguiar, J. L. Barroso de
Pacheco-Torgal, F.
Chindaprasirt, J.
Chindaprasirt, P.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pangdaeng, S.
Sata, V.
Aguiar, J. L. Barroso de
Pacheco-Torgal, F.
Chindaprasirt, J.
Chindaprasirt, P.
dc.subject.por.fl_str_mv Aluminosilicate
Apatite
Metakaolin
SBF
Science & Technology
topic Aluminosilicate
Apatite
Metakaolin
SBF
Science & Technology
description This paper reports that surface treatment with CaCl2 enhances the bioactivity of a calcined kaolin geopolymer. Calcined kaolin, NaOH solution, sodium silicate solution, and heat curing were used to form geopolymer pastes. A soaked-treatment method was applied to the geopolymer samples using CaCl2 solution as the ion exchange agent. The bioactivity of the material was determined by the simulated body fluid (SBF) in vitro testing method. Scanning electron microscope images showed a dense apatite formation on the treated geopolymer surface after SBF immersion for only 3 days. The CaCl2 treatment promoted compressive strength and enhanced bioactivity by accelerating apatite precipitation and slowing down the rise in pH.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
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/1822/45846
url http://hdl.handle.net/1822/45846
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pangdaeng S., Sata V., Aguiar J. B., Torgal F. P., Chindaprasirt J., Chindaprasirt P. Bioactivity enhancement of calcined kaolin geopolymer with CaCl2 treatment, ScienceAsia, Vol. 42, pp. 407-414, doi:10.2306/scienceasia1513-1874.2016.42.407, 2017
1513-1874
10.2306/scienceasia1513-1874.2016.42.407
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Thailands Natural Science & Technology Development Agency
publisher.none.fl_str_mv Thailands Natural Science & Technology Development Agency
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
repository.mail.fl_str_mv
_version_ 1799132382726455296

Registros relacionados