Impact of Climatic Ageing on the Basic Mechanical Properties of Viscoelastic Sealants

Jiří Minster; Petr Šašek

doi:10.4028/www.scientific.net/DDF.368.182

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Indentation Fracture Toughness of Al₂O₃ + GPLs and Si₃N₄ + GPLs Systems
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Young’s Modulus of Alumina Particles Reinforced Metal-Matrix Composite
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Mechanical Properties of Irradiated Polyamide under Thermal Stress
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Impact of Climatic Ageing on the Basic Mechanical Properties of Viscoelastic Sealants
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Nanoindentation Assessed Fracture Toughness of Cement Paste
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Measuring Techniques for Retroreflectivity Levels of Small Signs
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Polarimetric Sensing Technique for Textile Material
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The Potential of AE Sensing in the Indentation Fracture Toughness Measurement
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 368Impact of Climatic Ageing on the Basic Mechanical...

Impact of Climatic Ageing on the Basic Mechanical Properties of Viscoelastic Sealants

Abstract:

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 TriboIndeter^TM 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.

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Periodical:

Defect and Diffusion Forum (Volume 368)

Pages:

182-185

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.368.182

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Online since:

July 2016

Authors:

Jiří Minster*, Petr Šašek

Keywords:

Climatic Ageing, Mechanical Properties, Microindentation, Polymer Sealants, Repair of Mosaics

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* - Corresponding Author

References

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