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Reduction in smoke emitted and fire hazard presented by flexible poly (vinyl chloride) through novel synthesis of SnO2 supported by activated carbon spheres.
- Source :
- Polymers for Advanced Technologies; Sep2018, Vol. 29 Issue 9, p2505-2514, 10p
- Publication Year :
- 2018
-
Abstract
- A novel catalyst consisting of SnO<subscript>2</subscript> supported by activated carbon spheres (ACS), referred to as “ACS@SnO<subscript>2</subscript>,” was demonstrated as being much more efficient than either ACS or SnO<subscript>2</subscript> alone. As such, it is capable of improving the thermal stability and flame retardancy of flexible poly (vinyl chloride) (fPVC). The resulting ACS@SnO<subscript>2</subscript> composite exhibits a higher reactivity and excellent stability due to the presence of evenly dispersed SnO<subscript>2</subscript> particles attached to the ACS, as well as the high degree of graphitization of the ACS. Smoke suppression and the synergistic flame‐retardant effect of the ACS@SnO<subscript>2</subscript> on the fPVC were thoroughly investigated by performing a cone calorimeter test and thermogravimetric analysis. The cone calorimeter test data reveal that the addition of the ACS@SnO<subscript>2</subscript> greatly improved the flame retardancy of the fPVC, with 32% and 58.4% decreases in the peak heat release rate and smoke production rate, respectively. This is attributed to the formation of a continuous and compact protective layer and the synergistic effects of the ACS and SnO<subscript>2</subscript> in promoting the ability of the fPVC to isolate heat and oxygen. Furthermore, the ACS@SnO<subscript>2</subscript>/fPVC composite produced greatly increased amounts of char residue, thereby attenuating the fire hazard presented by fPVC composites. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10427147
- Volume :
- 29
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Polymers for Advanced Technologies
- Publication Type :
- Academic Journal
- Accession number :
- 131052752
- Full Text :
- https://doi.org/10.1002/pat.4362