Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 136, Issue 3, Pages 1135-1145Publisher
SPRINGER
DOI: 10.1007/s10973-018-7783-9
Keywords
Carbon black; Oil sludge; Thermal stability; Combustion behavior; Ethylene-vinyl acetate
Funding
- National Natural Science Foundation of China [51372129, 51572138]
- Project of People's Livelihood Science and Technology of Qingdao City [16-6-2-54-nsh]
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CaCO3-containing oil sludge (OS) is a by-product from petroleum industry, with great amount of production. Therefore, an effective processing methods for CaCO3-containing OS is urgently needed. Herein, ethylene-vinyl acetate (EVA) composites based on CaCO3-containing OS and carbon black (CB) were prepared by melt blending method. The combustion behavior and thermal stability of flame-retardant EVA/OS/CB composites were investigated by cone calorimeter test, limiting oxygen index (LOI), scanning electron microscopy (SEM), smoke density test (SDT), and thermogravimetry-Fourier infrared spectrometry. The heat release rate and smoke production rate of the ternary composites containing 3% CB significantly decreased compared with the EVA/OS composites and pure EVA. Moreover, addition of a certain amount of CB could evidently increase LOI values. The morphologies and structures of the residues, revealed by SEM, ascertained that a better carbonaceous protective layer was formed on the ternary composites than the EVA/OS composite. It was obtained from SDT that CB in the material could retard the smoke production with the application of the pilot flame. The EVA/OS/CB composites assumed a higher thermal stability than the EVA/OS composites and pure EVA.
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