Effect of operating parameters on time to decomposition of high density polyethylene and chlorinated polyethylenes
Document Type
Article
Publication Date
7-15-1987
Department
Department of Chemical Engineering; Department of Chemistry
Abstract
An investigation was made to determine the influence of furnace temperature (500-800 °C), concentration of oxygen in the gas flow (0-100%, v v) and sample mass (2-15 mg) on the decomposition time of several polymers. These were high density polyethylene and chlorinated polyethylenes (25, 36 and 42% by mass chlorine). Thermal oxidative degradation was undertaken in a Du Pont 951 thermogravimetric analyzer in the isothermal mode using a gas flow of 0.833 ml s-1, STP. The results indicated that the average sample heating rate influenced the decomposition time most. Operating at higher furnace temperature (≥ 700°C) and using a small sample mass (≤ 2.5 mg) reduced the variance in td. The activation energy for decomposition of the polymers was 39.3 ± 0.5 kJ mol-1.
Publication Title
Thermochimica Acta
Recommended Citation
Serageldin, M.,
&
Wang, H.
(1987).
Effect of operating parameters on time to decomposition of high density polyethylene and chlorinated polyethylenes.
Thermochimica Acta,
117(C), 157-166.
http://doi.org/10.1016/0040-6031(87)88111-X
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/5515
