Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/150575
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Study of the effect of the incorporation of TiO2 nanotubes on the mechanical and photodegradation properties of polyethylenes |
Autor: | Zenteno, A.; Lieberwirth, Ingo; Catalina, Fernando CSIC ORCID ; Corrales, Teresa CSIC ORCID; Guerrero, S. ; Vasco, D. A.; Zapata, Paula A. | Palabras clave: | Polymer-matrix composites (PMCs) Particle-reinforcement Mechanical properties Dynamic properties Photodegradation |
Fecha de publicación: | 2017 | Editor: | Elsevier | Citación: | Composites Part B: Engineering 112: 66-73 (2017) | Resumen: | TiO nanotubes (TiO-Ntbs) synthesized by a hydrothermal method with a diameter of ca. 5 nm were used as filler to prepare polyethylene (PE) and linear low density polyethylene (LLDPE) composites by melt blending. Nanotubes were used either as synthesized or organically modified with hexadecyltrimethoxysilane (Mod-TiO-Ntbs). In some cases nanoparticles form secondary structures with sizes around 100 nm and agglomerates larger than 2 μm are also seen by transmission electron microscopy (TEM). In terms of mechanical properties, the addition of TiO-Ntbs resulted in a composite, LLDPE/TiO-Ntbs, with improved properties. Compared with the pure polymer, Young's modulus increased by ca. 50%, while yield stress increased by ca. 35%. On the other hand, PE/Mod-TiO-Ntbs and LLDPE/Mod-TiO-Ntbs with 5 wt% filler loading showed higher E′ values in the storage modulus at low temperatures than either neat PE and LLDPE. The photodegradation properties of the PE/Mod-TiO-Ntbs and LLDPE/Mod-TiO-Ntbs composites were studied. The largest increase of chemiluminescence emission (CL) and carbonyl index (CI) was found for LLDPE/Mod-TiO-Ntbs during photoaging. That behavior may be due to large branching of the polymer, and to the presence of the nanotubes incorporated into the LLDPE, which promoted and accelerated its photodegradation due to reactive species generated during irradiation. | Versión del editor: | http://dx.doi.org/10.1016/j.compositesb.2016.12.007 | URI: | http://hdl.handle.net/10261/150575 | DOI: | 10.1016/j.compositesb.2016.12.007 | Identificadores: | doi: 10.1016/j.compositesb.2016.12.007 issn: 1359-8368 |
Aparece en las colecciones: | (ICTP) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
27
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
26
checked on 29-feb-2024
Page view(s)
278
checked on 24-abr-2024
Download(s)
108
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.