English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/236689
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Effect of chemical treatment on thermophysical behavior of Spanish broom flour-reinforced polypropylene biocomposite

AuthorsNouar, Y.; Zouaoui, F.; Nekkaa, S.; Rouabah, F.; Fernández-García, Marta ; López, Daniel ; Fois, M.
Chemical treatment
Spanish broom flour
Thermal conductivity
Issue Date2021
PublisherWalter de Gruyter
CitationJournal of Polymer Engineering 41: 9-18 (2021)
AbstractThis work presents the chemical modification of Spanish broom flour (SBF), and the study of SBF loading and surface treatment on the performances of polypropylene (PP) biocomposites. In order to enhance the interfacial interactions between the PP matrix and the SBF, two types of chemical treatments were used: 2 wt% of sodium hydroxide (NaOH) for different times (8, 24 and 48 h) and 5 wt% of vinyltrimethoxysilane (VTMS), respectively. Different techniques for characterization such as the melting flow index (MFI), X-ray diffraction, transient plane source (TPS) and water absorption were used. The experiment results showed a decrease of the MFI with increasing of modified SBF content, independently of the type of the chemical treatment. Moreover, this decrease became significant in the biocomposites containing SBF-VTMS. The X-ray patterns showed that surface treatment of SBF could improve their crystallinity and crystallite sizes. The TPS measurements illustrates that the thermal conductivity of the biocomposites decreases with 10 wt% of modified SBF loading. Higher content than 20 wt% of SBF, improved the thermal conductivity of the biocomposites. Meanwhile, the lowest values were found when the VTMS is used. Besides, it was accompanied by a decrease in absorptivity due to the better interfacial adhesion SBF-PP.
Publisher version (URL)http://dx.doi.org/10.1515/polyeng-2020-0073
Identifiersdoi: 10.1515/polyeng-2020-0073
issn: 0250-8079
Appears in Collections:(ICTP) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.