Abstract
A serial of tests were carried out to evaluate the effect
of specimen mass on the test results for PMMA conducted
in a micro-scale combustion calorimeter. Seven heating
rates were used to test specimens of mass ranging from
0.5 to 6.0 mg with nominal interval of 0.5 mg.
Eighty-five specimens were tested. Heat release rate,
onset temperature, temperature at maximum heat release
rate, total heat release, and heat release capacity were
determined. The influence of specimen mass at each
heating rate was analyzed. Specimen mass influences the
maximum heat release rate, onset temperature, and
temperature at maximum heat release rate significantly.
The higher the heating rate, the greater the influence.
Reliable results could be obtained as long as the
specimen mass is more than 1 mg with oxygen concentration
above 5 %; thus, the oxygen concentration limit might be
extended from 10 to 5 %.
| Original language | English |
|---|---|
| Pages (from-to) | 1831-1840 |
| Journal | Journal of Thermal Analysis and Calorimetry |
| Volume | 126 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- calorimeters
- combustion
- flammability
- polymethyl methacrylates
- heat release capacities
- heat release rate (HRR)
- maximum heat release rate
- onset temperature
- oxygen concentrations
- reliable results
- specimen mass
- total heat release