Abstract
Thermogravimetric and differential thermal analyses were con ducted 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°C. The minimum temperatures at which the rapid weight loss of each sample in the airflow, i.e., a sign of combus tion, began to appear were determined through comparison of the TG-DTA data in the airflow with those in nitrogen gas flow. These temperature data ob tained from a micro-scale flammability evaluation method, i.e., the thermo gravimetric 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 in dex of cover rubber of belting and with some “ignition temperature” in the hot plate ignition test.
Original language | English |
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Pages (from-to) | 455-476 |
Number of pages | 22 |
Journal | Journal of Fire Sciences |
Volume | 8 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1990 Nov |
Externally published | Yes |
Keywords
- differential thermal analysis
- fire-resistance
- flammability tests
- rubber conveyor belts
- ther mogravimetry
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Mechanics of Materials
- Mechanical Engineering