Stability Efficiencies of POSS and Microalgae Extracts on the Durability of Ethylene-Propylene-Diene Monomer Based Hybrids

The EPDM (ethylene-propylene-diene monomer) hybrids with improved thermal and radiation strengths containing 1 and 5 phr of polyhedral oligomeric silsesquioxane (vinyl-POSS, Ov-POSS) and/or 2 phr of microalgae ( ( ) and ( )) powders were investigated in respect to their thermal stability after γ-irr...

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Published inPolymers Vol. 14; no. 1; p. 187
Main Authors Zaharescu, Traian, Mateescu, Carmen
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 03.01.2022
MDPI
Subjects
accelerated degradation
Algae
Antioxidants
Carbohydrates
Chemiluminescence
Cyanobacteria
Degradation
Durability
EPDM
Ethylene
Food
Free radicals
Gamma irradiation
hybrids
irradiation
microalgae extracts
Monomers
Nanoparticles
Oxidation
Polyhedral oligomeric silsesquioxane
Polymers
Polyphenols
POSS
Propylene
Proteins
Radiation
Thermal stability
EPDM
accelerated degradation
radiation processing
POSS
hybrids
microalgae extracts
irradiation
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Summary:The EPDM (ethylene-propylene-diene monomer) hybrids with improved thermal and radiation strengths containing 1 and 5 phr of polyhedral oligomeric silsesquioxane (vinyl-POSS, Ov-POSS) and/or 2 phr of microalgae ( ( ) and ( )) powders were investigated in respect to their thermal stability after γ-irradiation. The material durability under accelerated degradation was qualified by chemiluminescence and gelation, which prove the contribution of inorganic filler and microalgae extracts on the increase of hybrid thermal stability, as well as the interaction between added components (POSS and or ). The activation energies and the durabilities under accelerated degradation were calculated, indicating their suitable usage as appropriate materials in various applications. The reported results indicate the improvement effect of both microalgal powders on the oxidation strength, but the contribution of grabs attention on its efficient effects upon the prevention of degradation under accelerated aging conditions. The thermal performances of the tested EPDM based hybrids are remarkably ameliorated, if the certain formulation includes Ov-POSS (5 phr) and (2 phr), certifying its suitability for the pertinent applications.
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym14010187