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Durability of LDPE/UHMWPE Composites under Accelerated Degradation
This study presents a detailed analysis of thermal and radiation resistances of low density polyethylene (LDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends containing hydroxyapatite as functional filler and rosemary acting as antioxidant against oxidative degradation. Three main procedu...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7362078/ https://www.ncbi.nlm.nih.gov/pubmed/32486056 http://dx.doi.org/10.3390/polym12061241 |
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author | Zaharescu, Traian Râpă, Maria Blanco, Ignazio Borbath, Tunde Borbath, Istvan |
author_facet | Zaharescu, Traian Râpă, Maria Blanco, Ignazio Borbath, Tunde Borbath, Istvan |
author_sort | Zaharescu, Traian |
collection | PubMed |
description | This study presents a detailed analysis of thermal and radiation resistances of low density polyethylene (LDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends containing hydroxyapatite as functional filler and rosemary acting as antioxidant against oxidative degradation. Three main procedures, chemiluminescence (CL), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC), were applied for the determination of the degree of degradation when these materials are subjected to heat and radiation action. The crystallinity was also assessed for the characterization of diffusion peculiarities. The contributions of the mixing components are discussed based on their oxidation strength. The activation energies required for the oxidative degradation of the studied formulations were calculated. |
format | Online Article Text |
id | pubmed-7362078 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73620782020-07-21 Durability of LDPE/UHMWPE Composites under Accelerated Degradation Zaharescu, Traian Râpă, Maria Blanco, Ignazio Borbath, Tunde Borbath, Istvan Polymers (Basel) Article This study presents a detailed analysis of thermal and radiation resistances of low density polyethylene (LDPE)/ultra-high molecular weight polyethylene (UHMWPE) blends containing hydroxyapatite as functional filler and rosemary acting as antioxidant against oxidative degradation. Three main procedures, chemiluminescence (CL), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC), were applied for the determination of the degree of degradation when these materials are subjected to heat and radiation action. The crystallinity was also assessed for the characterization of diffusion peculiarities. The contributions of the mixing components are discussed based on their oxidation strength. The activation energies required for the oxidative degradation of the studied formulations were calculated. MDPI 2020-05-29 /pmc/articles/PMC7362078/ /pubmed/32486056 http://dx.doi.org/10.3390/polym12061241 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zaharescu, Traian Râpă, Maria Blanco, Ignazio Borbath, Tunde Borbath, Istvan Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title | Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title_full | Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title_fullStr | Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title_full_unstemmed | Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title_short | Durability of LDPE/UHMWPE Composites under Accelerated Degradation |
title_sort | durability of ldpe/uhmwpe composites under accelerated degradation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7362078/ https://www.ncbi.nlm.nih.gov/pubmed/32486056 http://dx.doi.org/10.3390/polym12061241 |
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