The effect of pyrogenic SIO2 nanoparticles on the photodegradation of polymer coatings when exposed to UV irradiation
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Дата
2023
Науковий керівник
Назва журналу
Номер ISSN
Назва тому
Видавець
Liha-Pres
Анотація
The study investigates the impact of functionalized silica
nanoparticles on the photodestruction of styrene acrylic polymer-based
coatings. The research uses infrared spectroscopy, ablation speed, and water
contact angle measurements to analyze the UV degradation of thin layer
coatings under accelerated aging conditions. HALS amine loaded coatings
are used as a reference. Results show that the photodegradation of the silica
nanoparticles-polymer composite thin film coatings is influenced by two
factors: screening of UV radiation and increased polymer hydrophilization
speed. At nanoparticle loads over 15 wt. %, the thickness ablation speed
decreases from 1.3 to 1.2 μm/h, and the contact angle sharply drops to 40
from the initial 89 within the first 30 minutes of exposure.
Опис
Ключові слова
silica nanoparticles, polymer coatings, UV degradation, water contact angle
Бібліографічний опис
Myronyuk, O. The effect of pyrogenic SIO2 nanoparticles on the photodegradation of polymer coatings when exposed to UV irradiation / Oleksiy Myronyuk, Denys Baklan, Anna Bilousova // Композиційні матеріали : монографія за матеріалами XІІ Міжнародної науково-практичної WEB-конференції (квітень 2023 р.). – Львів – Торунь : Liha-Pres, 2023. – С. 30-32.