Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00364739" target="_blank" >RIV/61389013:_____/11:00364739 - isvavai.cz</a>
Result on the web
<a href="http://www.weathering-symposium.org/books/books.htm" target="_blank" >http://www.weathering-symposium.org/books/books.htm</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements
Original language description
Weathering of polymers comprises a large number of photooxidation processes triggered by environmental factors. It accounts for heterogeneous photodegradation that has negative impact on material properties of polymers. The degradation can be minimized by application of stabilizers, hindered amine stabilizers (HAS) in particular. We applied modern physical techniques that are able to bring unique information on the heterogeneity of the degradation process. Development of concentration profiles of nitroxides inside polymer plaques and concentrations of oxidation products on the surfaces and inside the plaques were determined by ESRI and by ATR FTIR, respectively. Diffuse optical transmission of the plaques was determined using spectrophotometer equippedwith an integration sphere. Data determined in four commodity carbon chain polymers PP, PE, PS and Topas stabilized with secondary HAS Tinuvin 770 and with Tinuvin NOR 123 are compared.
Czech name
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Czech description
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Project
<a href="/en/project/IAA400500804" target="_blank" >IAA400500804: Spatial heterogeneity of photo- and thermo-degradation of solid polymers by modern physical methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Natural and Artificial Ageing of Polymers
ISBN
978-3-9813136-2-8
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
359-369
Publisher name
Confederation of European Environmental Engineering Societies (CEEES) - Gesellschaft für Umweltsimulation GUS
Place of publication
Pfinztal
Event location
Lisbon
Event date
Sep 21, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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