Nanosized additives and their impact on the fire resistance of coatings
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Дата
2023
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Видавець
Liha-Pres
Анотація
The study investigated the impact of different nanosized additives
on the fire resistance properties of intumescent coatings. The results showed
that the addition of organically modified montmorillonite and hydrophobized
silica reduced the fire resistance properties of the coatings. This was due to
the expansion processes being shifted to higher temperatures, which increased
the time of direct heating of the substrate. However, minor concentrations of
organically modified montmorillonite significantly changed the structure of
the coatings and increased their specific heat insulation properties. The study
also observed that nanosized additives had an effect on the expansion factor
and foam structure of the coatings. This effect was suggested to be due to
the complex influence of the nanoparticles on the bubble growth processes
through the modification of melt viscosity. Overall, the study highlights
the importance of carefully selecting the type and concentration of nanosized
additives when designing intumescent coatings for fire protection applications.
Опис
Ключові слова
intumescent coating, expansion factor, heat insulation, organically modifed montmorillonite, hydrophobic silica
Бібліографічний опис
Barrat, S. Nanosized additives and their impact on the fire resistance of coatings / Silvère Barrat, Oleksiy Myronyuk // Композиційні матеріали : монографія за матеріалами XІІ Міжнародної науково-практичної WEB-конференції (квітень 2023 р.). – Львів – Торунь : Liha-Pres, 2023. – С. 44-47.