Micromechanical properties of one-step and sequentially crosslinked UHMWPEs for total joint replacements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F15%3A00439729" target="_blank" >RIV/61389013:_____/15:00439729 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00064203:_____/15:10294557 RIV/00216208:11110/15:10294557

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.polymertesting.2014.12.003" target="_blank" >http://dx.doi.org/10.1016/j.polymertesting.2014.12.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymertesting.2014.12.003" target="_blank" >10.1016/j.polymertesting.2014.12.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Micromechanical properties of one-step and sequentially crosslinked UHMWPEs for total joint replacements

Popis výsledku v původním jazyce

Microindentation hardness testing was applied to five types of highly-crosslinked ultrahigh molecular weight polyethylenes (UHMWPEs) for total joint replacements. UHMWPE's were crosslinked using the same total radiation dose (75 kGy; ?-radiation) eitherby the standard, single-step irradiation (one-step crosslinking) or by the newer, several-step irradiation (sequential crosslinking). Each irradiation step was followed by thermal treatment (annealing at 110 °C or remelting at 150 °C) in an inert atmosphere. We showed that: (i) the micromechanical properties were determined by the last thermal treatment step, while the number of irradiation cycles was insignificant and (ii) the values of microhardness, microcreep and microplasticity from the microindentation experiments were in excellent agreement with the changes of UHMWPE structure, characterized by IR and DSC. Statistical evaluation of the results, the agreement with theoretical predictions and the comparison with previous studies on

Název v anglickém jazyce

Micromechanical properties of one-step and sequentially crosslinked UHMWPEs for total joint replacements

Popis výsledku anglicky

Microindentation hardness testing was applied to five types of highly-crosslinked ultrahigh molecular weight polyethylenes (UHMWPEs) for total joint replacements. UHMWPE's were crosslinked using the same total radiation dose (75 kGy; ?-radiation) eitherby the standard, single-step irradiation (one-step crosslinking) or by the newer, several-step irradiation (sequential crosslinking). Each irradiation step was followed by thermal treatment (annealing at 110 °C or remelting at 150 °C) in an inert atmosphere. We showed that: (i) the micromechanical properties were determined by the last thermal treatment step, while the number of irradiation cycles was insignificant and (ii) the values of microhardness, microcreep and microplasticity from the microindentation experiments were in excellent agreement with the changes of UHMWPE structure, characterized by IR and DSC. Statistical evaluation of the results, the agreement with theoretical predictions and the comparison with previous studies on

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Polymer Testing

ISSN

0142-9418

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

191-197

Kód UT WoS článku

000348970100025

EID výsledku v databázi Scopus

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