Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
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/1822/48492 |
Resumo: | Heavy-metal contamination in children's toys is a widespread problem, and the international community has issued a series of safety standards to restrict and control the use of toxic metals in toys. In this work, a colored filler (CBF) was prepared using pearl oyster shell (POS) as the green raw material and azo dye as the colorant. Its surface properties were subsequently studied in comparison to those of POS powder using the inverse gas chromatography method. The dispersion surface free energy profiles for both CBF and POS showed that this component contributed the major part (> 70%) to the total surface free energy. The CBF possessed lower polar surface free energy and was relatively more hydrophobic. It also showed a lower thermodynamic work of cohesion, allowing its better dispersion in a low density polyethylene (LDPE) matrix. Mechanical performance studies showed that adding CBF could significantly increase the tensile strength, elastic modulus, flexural strength and flexural modulus of LDPE composites. The absence of toxic metals coupled with excellent mechanical performance makes the CBF an ideal candidate as a filler for children's toys fabrication. |
id |
RCAP_ae278cc7755d2f5f7c32c3fee311e624 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/48492 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free fillerHeavy-metal contaminationChildren's toysBiofillerSurface characterizationMechanical performanceScience & TechnologyHeavy-metal contamination in children's toys is a widespread problem, and the international community has issued a series of safety standards to restrict and control the use of toxic metals in toys. In this work, a colored filler (CBF) was prepared using pearl oyster shell (POS) as the green raw material and azo dye as the colorant. Its surface properties were subsequently studied in comparison to those of POS powder using the inverse gas chromatography method. The dispersion surface free energy profiles for both CBF and POS showed that this component contributed the major part (> 70%) to the total surface free energy. The CBF possessed lower polar surface free energy and was relatively more hydrophobic. It also showed a lower thermodynamic work of cohesion, allowing its better dispersion in a low density polyethylene (LDPE) matrix. Mechanical performance studies showed that adding CBF could significantly increase the tensile strength, elastic modulus, flexural strength and flexural modulus of LDPE composites. The absence of toxic metals coupled with excellent mechanical performance makes the CBF an ideal candidate as a filler for children's toys fabrication.The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (Grant nos. 51606055 and 41373121) and Zhejiang Provincial Natural Science Foundation of China (Grant no. LY14D010009).info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoYao, ZhitongHeng, Jerry Y. Y.Lanceros-Méndez, S.Pegoretti, AlessandroXia, MeishengTang, JunhongWu, Weihong2017-092017-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/48492eng0143-749610.1016/j.ijadhadh.2017.04.005http://www.sciencedirect.com/science/article/pii/S0143749617300854info: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:RCAAP2023-07-21T11:55:57Zoai:repositorium.sdum.uminho.pt:1822/48492Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:45:33.073719Repositório 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 |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
title |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
spellingShingle |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler Yao, Zhitong Heavy-metal contamination Children's toys Biofiller Surface characterization Mechanical performance Science & Technology |
title_short |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
title_full |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
title_fullStr |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
title_full_unstemmed |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
title_sort |
Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler |
author |
Yao, Zhitong |
author_facet |
Yao, Zhitong Heng, Jerry Y. Y. Lanceros-Méndez, S. Pegoretti, Alessandro Xia, Meisheng Tang, Junhong Wu, Weihong |
author_role |
author |
author2 |
Heng, Jerry Y. Y. Lanceros-Méndez, S. Pegoretti, Alessandro Xia, Meisheng Tang, Junhong Wu, Weihong |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Yao, Zhitong Heng, Jerry Y. Y. Lanceros-Méndez, S. Pegoretti, Alessandro Xia, Meisheng Tang, Junhong Wu, Weihong |
dc.subject.por.fl_str_mv |
Heavy-metal contamination Children's toys Biofiller Surface characterization Mechanical performance Science & Technology |
topic |
Heavy-metal contamination Children's toys Biofiller Surface characterization Mechanical performance Science & Technology |
description |
Heavy-metal contamination in children's toys is a widespread problem, and the international community has issued a series of safety standards to restrict and control the use of toxic metals in toys. In this work, a colored filler (CBF) was prepared using pearl oyster shell (POS) as the green raw material and azo dye as the colorant. Its surface properties were subsequently studied in comparison to those of POS powder using the inverse gas chromatography method. The dispersion surface free energy profiles for both CBF and POS showed that this component contributed the major part (> 70%) to the total surface free energy. The CBF possessed lower polar surface free energy and was relatively more hydrophobic. It also showed a lower thermodynamic work of cohesion, allowing its better dispersion in a low density polyethylene (LDPE) matrix. Mechanical performance studies showed that adding CBF could significantly increase the tensile strength, elastic modulus, flexural strength and flexural modulus of LDPE composites. The absence of toxic metals coupled with excellent mechanical performance makes the CBF an ideal candidate as a filler for children's toys fabrication. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09 2017-09-01T00:00:00Z |
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/1822/48492 |
url |
http://hdl.handle.net/1822/48492 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0143-7496 10.1016/j.ijadhadh.2017.04.005 http://www.sciencedirect.com/science/article/pii/S0143749617300854 |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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_ |
1799132208029499392 |