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Wang, Siwen; Xu, Tao; Xia, Wenjing
Journal of thermal analysis and calorimetry, 12/2022, Letnik: 147, Številka: 24Journal Article
Pyrolysis property is an important safety issue for asphalt materials. It is important to study the asphalt pyrolysis properties for selecting flame-retarding technology to improve the fire safety of asphalt materials. Differential scanning calorimeter–thermogravimetry–Fourier-transform infrared spectroscopy was used to analyze the main pyrolysis temperature range, thermal effects, and emitted volatiles of saturates, aromatics, resins and asphaltenes (SARA) fractions. The microscopic morphology, the elemental compositions and their contents of each SARA fraction pyrolysis residues were tested by environmental scanning electron microscope–energy-dispersive spectrometer. The results indicate that main pyrolysis temperature range of SARA fractions is 250–550 °C, of which saturates have the lowest initial pyrolysis temperature, successively followed by aromatics, resins and asphaltenes. Also, SARA fraction pyrolysis processes are mainly endothermic reactions. The main volatiles in the pyrolysis of SARA fractions are alkanes and a small amount of CO, CO 2 and SO 2 . Finally, the morphology and their elemental compositions of pyrolysis residues of SARA fractions are different. Among them, the proportion of O element is decreased from saturates to aromatics, resins and asphaltenes while the proportion of C is basically increased.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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