Accelerated laboratory weathering of polypropylene composites filled with synthetic silicon-based compounds
PBN-AR
Instytucja
Wydział Chemii (Uniwersytet Opolski)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Polymer Degradation and Stability
ISSN
0141-3910
EISSN
1873-2321
Wydawca
Elsevier
DOI
Rok publikacji
2019
Numer zeszytu
Strony od-do
30-38
Numer tomu
161
Liczba arkuszy
1.35
Słowa kluczowe
en
polypropylene
accelerated laboratory weathering
polyhedral oligomeric silsesquioxane
siloxane-silsesquioxane resin
silica
Streszczenia
Język
en
Treść
Non-functionalized and n-alkyl functionalized polyhedral oligomeric silsesquioxanes (POSS), siloxane-silsesquioxane resins and the sol-gel silicas were for the first time examined as possible UV-stabilizers and/or antioxidants in polypropylene (PP). The obtained composites were subjected to the accelerated laboratory weathering tests. The influence of the weathering conditions on the structure and properties of the PP materials was evaluated on the basis of the results from Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) studies. It was found that weathering resistance of the PP materials was strongly depended on the kind of the silicon-based filler used. Functionalized silsesquioxanes and siloxane-silsesquioxane resins improved weathering resistance of the PP materials, most probably because of its uniform dispersion in polymer, and thus, they could be considered as antioxidant additives. The changes in structural characteristics influenced thermal properties of the PP composites. It was revealed that the addition of the n-alkyl functionalized POSS and siloxane-silsesquioxane resins caused less significant changes in the melting and crystallization behaviour of PP materials.
Inne
System-identifier
UO8577a40e36564121b79767a8494899af
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