Structural Insights into LDPE/UHMWPE Blends Processed by γ-Irradiation
Ultra-high-molecular-weight polyethylene (UHMWPE) matrices containing low-density polyethylene (LDPE), hydroxyapatite (HAp) as filler, and rosemary extract (RM) as stabilizer were investigated for their qualification for long-term applications. The significant contributions of the blend components w...
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| Veröffentlicht in: | Polymers 2023-01, Vol.15 (3), p.696 |
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| creator | Zaharescu, Traian Nicula, Nicoleta Râpă, Maria Iordoc, Mihai Tsakiris, Violeta Marinescu, Virgil Emanuel |
| description | Ultra-high-molecular-weight polyethylene (UHMWPE) matrices containing low-density polyethylene (LDPE), hydroxyapatite (HAp) as filler, and rosemary extract (RM) as stabilizer were investigated for their qualification for long-term applications. The significant contributions of the blend components were analyzed, and variations in mechanical properties, oxidation strength, thermal behavior, crystallinity, and wettability were discussed. SEM images of microstructural peculiarities completed the introspective survey. The stability improvement due to the presence of both additives was an increase in the total degradation period of 67% in comparison with an unmodified HDPE/UHMWPE blend when the materials were subjected to a 50 kGy γ-dose. There was growth in activation energies from 121 kJ mol
to 139 kJ mol
when HAp and rosemary extract delayed oxidation. The exposure of samples to the action of γ-rays was found to be a proper procedure for accomplishing accelerated oxidative degradation. The presence of rosemary extract and HAp powder significantly increased the thermal and oxidation resistances. The calculation of material lifetimes at various temperatures provided meaningful information on the wearability and integrity of the inspected composites. |
| doi_str_mv | 10.3390/polym15030696 |
| format | Article |
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to 139 kJ mol
when HAp and rosemary extract delayed oxidation. The exposure of samples to the action of γ-rays was found to be a proper procedure for accomplishing accelerated oxidative degradation. The presence of rosemary extract and HAp powder significantly increased the thermal and oxidation resistances. The calculation of material lifetimes at various temperatures provided meaningful information on the wearability and integrity of the inspected composites.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym15030696</identifier><identifier>PMID: 36771997</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Additives ; Aluminum ; Composite materials industry ; Degradation ; Free radicals ; Gamma irradiation ; Gamma rays ; Hydroxyapatite ; Investigations ; Low density polyethylenes ; Mechanical properties ; Oxidation ; Oxidation resistance ; Polyethylene ; Polymer blends ; Polymers ; Radiation ; Rosemary ; Spectrum analysis ; Thermodynamic properties ; Ultra high molecular weight polyethylene ; Wettability</subject><ispartof>Polymers, 2023-01, Vol.15 (3), p.696</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 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 (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2023 by the authors. 2023</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c454t-db71fe9e91dda0170286853ee0abb596e87ea15eeb17b2767397a25f81912ab83</citedby><cites>FETCH-LOGICAL-c454t-db71fe9e91dda0170286853ee0abb596e87ea15eeb17b2767397a25f81912ab83</cites><orcidid>0000-0002-1810-4751 ; 0000-0002-5586-5066 ; 0000-0001-7359-5736 ; 0000-0002-1030-7511</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920361/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9920361/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36771997$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zaharescu, Traian</creatorcontrib><creatorcontrib>Nicula, Nicoleta</creatorcontrib><creatorcontrib>Râpă, Maria</creatorcontrib><creatorcontrib>Iordoc, Mihai</creatorcontrib><creatorcontrib>Tsakiris, Violeta</creatorcontrib><creatorcontrib>Marinescu, Virgil Emanuel</creatorcontrib><title>Structural Insights into LDPE/UHMWPE Blends Processed by γ-Irradiation</title><title>Polymers</title><addtitle>Polymers (Basel)</addtitle><description>Ultra-high-molecular-weight polyethylene (UHMWPE) matrices containing low-density polyethylene (LDPE), hydroxyapatite (HAp) as filler, and rosemary extract (RM) as stabilizer were investigated for their qualification for long-term applications. The significant contributions of the blend components were analyzed, and variations in mechanical properties, oxidation strength, thermal behavior, crystallinity, and wettability were discussed. SEM images of microstructural peculiarities completed the introspective survey. The stability improvement due to the presence of both additives was an increase in the total degradation period of 67% in comparison with an unmodified HDPE/UHMWPE blend when the materials were subjected to a 50 kGy γ-dose. There was growth in activation energies from 121 kJ mol
to 139 kJ mol
when HAp and rosemary extract delayed oxidation. The exposure of samples to the action of γ-rays was found to be a proper procedure for accomplishing accelerated oxidative degradation. The presence of rosemary extract and HAp powder significantly increased the thermal and oxidation resistances. The calculation of material lifetimes at various temperatures provided meaningful information on the wearability and integrity of the inspected composites.</description><subject>Additives</subject><subject>Aluminum</subject><subject>Composite materials industry</subject><subject>Degradation</subject><subject>Free radicals</subject><subject>Gamma irradiation</subject><subject>Gamma rays</subject><subject>Hydroxyapatite</subject><subject>Investigations</subject><subject>Low density polyethylenes</subject><subject>Mechanical properties</subject><subject>Oxidation</subject><subject>Oxidation resistance</subject><subject>Polyethylene</subject><subject>Polymer blends</subject><subject>Polymers</subject><subject>Radiation</subject><subject>Rosemary</subject><subject>Spectrum analysis</subject><subject>Thermodynamic properties</subject><subject>Ultra high molecular weight polyethylene</subject><subject>Wettability</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkc1O3DAUha2KqiDKstsqUjdsAv53vKlEYYCRBnWkFnVpOcnNYJTYUztBmufqe_SZMAwgwF74yv7O8b06CH0h-IgxjY_Xod8MRGCGpZYf0B7FipWcSbzzqt5FBynd4ry4kJKoT2iXSaWI1moPXfwa49SMU7R9MffJrW7GVDg_hmJxtpwdX19e_VnOih89-DYVyxgaSAnaot4U__-V8xht6-zogv-MPna2T3DwdO6j6_PZ79PLcvHzYn56sigbLvhYtrUiHWjQpG0tJgrTSlaCAWBb10JLqBRYIgBqomqqpGJaWSq6imhCbV2xffR967ue6gHaBvyYWzfr6AYbNyZYZ96-eHdjVuHOaE0xkyQbHD4ZxPB3gjSawaUG-t56CFMyVCkhacWpyOi3d-htmKLP4z1QXAuuH6mjLbWyPRjnu5D_bfJuYXBN8NC5fH-iOGOcZk0WlFtBE0NKEbqX7gk2D7GaN7Fm_uvrkV_o5xDZPQEWnfc</recordid><startdate>20230130</startdate><enddate>20230130</enddate><creator>Zaharescu, Traian</creator><creator>Nicula, Nicoleta</creator><creator>Râpă, Maria</creator><creator>Iordoc, Mihai</creator><creator>Tsakiris, Violeta</creator><creator>Marinescu, Virgil Emanuel</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-1810-4751</orcidid><orcidid>https://orcid.org/0000-0002-5586-5066</orcidid><orcidid>https://orcid.org/0000-0001-7359-5736</orcidid><orcidid>https://orcid.org/0000-0002-1030-7511</orcidid></search><sort><creationdate>20230130</creationdate><title>Structural Insights into LDPE/UHMWPE Blends Processed by γ-Irradiation</title><author>Zaharescu, Traian ; Nicula, Nicoleta ; Râpă, Maria ; Iordoc, Mihai ; Tsakiris, Violeta ; Marinescu, Virgil Emanuel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-db71fe9e91dda0170286853ee0abb596e87ea15eeb17b2767397a25f81912ab83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Additives</topic><topic>Aluminum</topic><topic>Composite materials industry</topic><topic>Degradation</topic><topic>Free radicals</topic><topic>Gamma irradiation</topic><topic>Gamma rays</topic><topic>Hydroxyapatite</topic><topic>Investigations</topic><topic>Low density polyethylenes</topic><topic>Mechanical properties</topic><topic>Oxidation</topic><topic>Oxidation resistance</topic><topic>Polyethylene</topic><topic>Polymer blends</topic><topic>Polymers</topic><topic>Radiation</topic><topic>Rosemary</topic><topic>Spectrum analysis</topic><topic>Thermodynamic properties</topic><topic>Ultra high molecular weight polyethylene</topic><topic>Wettability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zaharescu, Traian</creatorcontrib><creatorcontrib>Nicula, Nicoleta</creatorcontrib><creatorcontrib>Râpă, Maria</creatorcontrib><creatorcontrib>Iordoc, Mihai</creatorcontrib><creatorcontrib>Tsakiris, Violeta</creatorcontrib><creatorcontrib>Marinescu, Virgil Emanuel</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zaharescu, Traian</au><au>Nicula, Nicoleta</au><au>Râpă, Maria</au><au>Iordoc, Mihai</au><au>Tsakiris, Violeta</au><au>Marinescu, Virgil Emanuel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structural Insights into LDPE/UHMWPE Blends Processed by γ-Irradiation</atitle><jtitle>Polymers</jtitle><addtitle>Polymers (Basel)</addtitle><date>2023-01-30</date><risdate>2023</risdate><volume>15</volume><issue>3</issue><spage>696</spage><pages>696-</pages><issn>2073-4360</issn><eissn>2073-4360</eissn><abstract>Ultra-high-molecular-weight polyethylene (UHMWPE) matrices containing low-density polyethylene (LDPE), hydroxyapatite (HAp) as filler, and rosemary extract (RM) as stabilizer were investigated for their qualification for long-term applications. The significant contributions of the blend components were analyzed, and variations in mechanical properties, oxidation strength, thermal behavior, crystallinity, and wettability were discussed. SEM images of microstructural peculiarities completed the introspective survey. The stability improvement due to the presence of both additives was an increase in the total degradation period of 67% in comparison with an unmodified HDPE/UHMWPE blend when the materials were subjected to a 50 kGy γ-dose. There was growth in activation energies from 121 kJ mol
to 139 kJ mol
when HAp and rosemary extract delayed oxidation. The exposure of samples to the action of γ-rays was found to be a proper procedure for accomplishing accelerated oxidative degradation. The presence of rosemary extract and HAp powder significantly increased the thermal and oxidation resistances. The calculation of material lifetimes at various temperatures provided meaningful information on the wearability and integrity of the inspected composites.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>36771997</pmid><doi>10.3390/polym15030696</doi><orcidid>https://orcid.org/0000-0002-1810-4751</orcidid><orcidid>https://orcid.org/0000-0002-5586-5066</orcidid><orcidid>https://orcid.org/0000-0001-7359-5736</orcidid><orcidid>https://orcid.org/0000-0002-1030-7511</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Polymers, 2023-01, Vol.15 (3), p.696 |
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| language | eng |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; PubMed Central Open Access |
| subjects | Additives Aluminum Composite materials industry Degradation Free radicals Gamma irradiation Gamma rays Hydroxyapatite Investigations Low density polyethylenes Mechanical properties Oxidation Oxidation resistance Polyethylene Polymer blends Polymers Radiation Rosemary Spectrum analysis Thermodynamic properties Ultra high molecular weight polyethylene Wettability |
| title | Structural Insights into LDPE/UHMWPE Blends Processed by γ-Irradiation |
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