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Citation: QIN Jun, WENG Wen-Guo. Kinetics of PVC Isothermal Combustion[J]. Chinese Journal of Applied Chemistry, ;2006, 23(5): 471-475. shu

Kinetics of PVC Isothermal Combustion

QIN Jun ^, ,
WENG Wen-Guo

1.
State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026

Corresponding author: QIN Jun,
Received Date: 1 July 2005
Available Online: 3 September 2005
Fund Project: 国家重点基础研究专项经费(2001CB409600) (2001CB409600)国家自然科学基金(50306024)资助项目 (50306024)

The burning behavior of 3 mm-thick PVC slabs(100 mm×100 mm) at different temperatures was studied with a cone calorimeter.A single equation model of mass loss rate vs time was simulated with a chemical kinetic method.The fitted results suggest that for PVC burning within a temperature range of 674~(892℃),the reacting kinetic equation can be described as-ln(1-a)=Ae^-E/RTt;where the pre-exponential factor A and the average activation energy E are about 0.725 7 s^-1and 45.2 kJ/mol,respectively.The simulation results are in reasonably good agreement with the experimental data.In the combustion process of PVC,the oxidation of hydrocarbon is the main oxygen consumption reaction,and the products are CO₂ and CO,whose yields are both independent of the reaction temperature.
- PVC,
- combustion,
- chemical kinetics
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