Impact of climatic ageing on the basic mechanical properties of viscoelastic sealants

Kód výsledku v IS VaVaI

RIV/68378297:_____/16:00464343 - isvavai.cz

Výsledek na webu

http://www.scientific.net/DDF.368.182

DOI - Digital Object Identifier

10.4028/www.scientific.net/DDF.368.182

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of climatic ageing on the basic mechanical properties of viscoelastic sealants

Popis výsledku v původním jazyce

The aim of the research presented here was to assess the influence of climatic loading on the basic mechanical properties of polymer sealants, from the viewpoint of their application in creating and repairing outdoor mosaics. Six promising sealants were selected for the measurements. They were tested in their native state and also after four different model types of physical-chemical ageing were applied. We used a combination of ultra-violet radiation with the influence of enhanced temperature, moisture and also soaking in water and freezing. The Hysitron TI 750D TriboIndeterTM system, equipped with a Berkovich indenter, was used for tests. The basic mechanical characteristics were measured using the Basic QS Trapezoid quasi-static mode. Time-dependent properties of the sealants were assessed by the indentation creep method. The results have confirmed that microindentation technique offers a suitable methodology for assessing changes in the basic mechanical time-dependent properties of the tested sealants due to photo-degradation processes and climatic effects.

Název v anglickém jazyce

Impact of climatic ageing on the basic mechanical properties of viscoelastic sealants

Popis výsledku anglicky

The aim of the research presented here was to assess the influence of climatic loading on the basic mechanical properties of polymer sealants, from the viewpoint of their application in creating and repairing outdoor mosaics. Six promising sealants were selected for the measurements. They were tested in their native state and also after four different model types of physical-chemical ageing were applied. We used a combination of ultra-violet radiation with the influence of enhanced temperature, moisture and also soaking in water and freezing. The Hysitron TI 750D TriboIndeterTM system, equipped with a Berkovich indenter, was used for tests. The basic mechanical characteristics were measured using the Basic QS Trapezoid quasi-static mode. Time-dependent properties of the sealants were assessed by the indentation creep method. The results have confirmed that microindentation technique offers a suitable methodology for assessing changes in the basic mechanical time-dependent properties of the tested sealants due to photo-degradation processes and climatic effects.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

DF12P01OVV017: Technologie údržby a konzervace mozaiky Posledního soudu a metody restaurování-konzervování středověkého a archeologického skla.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Defect and Diffusion Forum

ISBN

978-3-03835-720-9

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

182-185

Název nakladatele

Trans Tech Publications

Místo vydání

Zürich

Místo konání akce

Liberec

Datum konání akce

4. 11. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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