ACP28
Material description
Material ID: ACP28
Material type: Aluminium composite panel consisting of an egg-box core with polymer adhesive.
Polymer: Ethylene-vinyl acetate (100%)
Additives (fire retardants, fillers or traces of inorganic elements): traces of other elements (<1%)

| Compound | Mass Concentration (%) |
|---|---|
| Ethylene-vinyl acetate (EVA) | 100 |
A. Material composition identification
A.1 Attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR)
Table 2. FTIR compound identification.| Identified Compounds |
|---|
| Ethylene-vinyl acetate (EVA) |
| NA |
| NA |
| NA |

Figure 1 . FTIR spectra: Absorbance percentage versus wavenumber from the sample.

Figure 2. FTIR spectra: Absorbance percentage versus wavenumber from the sample and the identified compounds.
B. Thermogravimetric analysis
Table 3. Mass fraction of residue after thermal decomposition.
| Condition | Fraction of mass residue at 800°C |
|---|---|
| Non-oxidative (nitrogen) | 0.20 |
| Oxidative (air) | 0 |
Table 4. Temperature and amplitude of main peaks in non-oxidative conditions.
| Peak ID | Temperature peak (°C) | Amplitude of peak (°C-1) |
|---|---|---|
| Peak 1 | 470 | 1.921 x 10-2 |
Table 5. Temperature and amplitude of main peaks in oxidative conditions.
| Peak ID | Temperature peak (°C) | Amplitude of peak (°C-1) |
|---|---|---|
| Peak 1 | 353 | 6.38 x 10-3 |
| Peak 2 | 405 | 1.234 x 10-2 |
| Peak 3 | 453 | 6.24 x 10-3 |
| Peak 4 | 538 | 1.58 x 10-3 |

Figure 4. Normalised mass (solid line) and derivative of the normalised mass (dashed line) in 150 ml min-1 of nitrogen and a heating rate of 20°C min-1.

Figure 5. Normalised mass (solid line) and derivative of the normalised mass (dashed line) in 150 ml min-1 of air and a heating rate of 20°C min-1 .