Citation

Nakagawa Y, Komai T. J. Fire Sci. 1990; 8(6): 455-476.

Copyright

(Copyright © 1990, SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Thermogravimetric and differential thermal analyses were conducted on each cover sample of nine different "flame-resistant" and one "non-flame resistant" rubber conveyor belts both in the airflow and in nitrogen gas flow. The TG-DTA curves on each sample were measured under the thermal range from room temperature to around 700-degrees-C. The minimum temperatures at which the rapid weight loss of each sample in the airflow, i.e., a sign of combustion, began to appear were determined through comparison of the TG-DTA data in the airflow with those in nitrogen gas flow. These temperature data obtained from a micro-scale flammability evaluation method, i.e., the thermogravimetric method, were compared with the results from some other small-scale flammability tests; i.e., the oxygen index, hot plate ignition and drum friction tests. As a result, it was found that even the data from such a micro-scale flammability test were somewhat consistent with the critical oxygen index of cover rubber of belting and with some "ignition temperature" in the hot plate ignition test.