Термодесорбційна мас-спектрометрія композитів на основі резорцин-формальдегідної смоли

• Datum: 2019
• Hauptverfasser: Bogatyrov, V. M., Mischanchuk, O. V., Galaburda, M. V., Pokrovskiy, V. A., Gun'ko, V. M.
• Format: Artikel
• Sprache: Russisch
• Veröffentlicht: Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine 2019
• Schlagworte: мас-спектроскопія; резорцин-формальдегідна смола; піроліз; леткі продукти
• Online Zugang: https://surfacezbir.com.ua/index.php/surface/article/view/665
• Назва журналу: Surface

The process of pyrolysis of a resorcinol-formaldehyde resin doped with fumed alumina and modified fumed silica (MgxOy/SiO2) has been investigated using thermodesorption mass-spectrometry. The structural characteristics of porous carbon are largely determined by the composition, structural characteristics of the precursor polymer and pyrolysis conditions. Thermal destruction of hydrocarbon structures of the polymer in an inert atmosphere or vacuum accompanied by the formation of volatile compounds removed from the reaction zone and polycyclic structures of amorphous carbon via condensation processes. It has been shown that during the pyrolysis of the polymer the main volatile products are CO, CO2, H2O, and CH4. The appearance of benzene, toluene and phenol in volatile products was less than 2%. The presence of fillers contributes to the formation of methanol and formic acid. The mechanism of the formation of polynuclear structures in the carbon residue was analyzed.