Surface free energy and mechanical performance of LDPE/CBF composites containing toxic-metal free filler
File(s)
Author(s)
Type
Journal Article
Abstract
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.
Date Issued
2017-09-01
Date Acceptance
2017-03-31
Citation
International Journal of Adhesion and Adhesives, 2017, 77, pp.58-62
ISSN
0143-7496
Publisher
Elsevier
Start Page
58
End Page
62
Journal / Book Title
International Journal of Adhesion and Adhesives
Volume
77
Copyright Statement
© 2017 Elsevier Ltd. All rights reserved. . This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000405765400007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Chemical
Materials Science, Multidisciplinary
Engineering
Materials Science
Heavy-metal contamination
Children's toys
Biofiller
Surface characterization
Mechanical performance
INVERSE GAS-CHROMATOGRAPHY
CALCIUM-CARBONATE
STEARIC-ACID
POLYPROPYLENE COMPOSITES
THERMAL-PROPERTIES
BIO-FILLERS
SHELL
DISTRIBUTIONS
FIBERS
EXTRACTION
Publication Status
Published
Date Publish Online
2017-04-12