Open Access
Table 4
FTIR spectra values for dolomite filled polyurethane foam.
| Run # | Peak (cm−1) | Transmittance (%) | Absorbance | Assignment |
|---|---|---|---|---|
| 1 | 3576.14 | 83.71 | 0.0772 | O–H asymmetrical Stretching vibration |
| 2 | 3099.02 | 88.26 | 0.0542 | N–H Stretching |
| 3 | 3051.74 | 68.04 | 0.1672 | –C = C – stretching |
| 4 | 2950.33 | 28.31 | 0.5481 | Asymmetrical stretching vibrations of CH groups |
| 5 | 2898.30 | 44.62 | 0.3505 | Symmetric stretching vibrations of CH groups |
| 6 | 1796.38 | 48.15 | 0.3174 | C = O stretching vibration |
| 7 | 1641.42 | 56.84 | 0.2454 | O–H asymmetrical bending vibration |
| 8 | 1446.20 | 58.21 | 0.2350 | C–H bending of unsaturated methylene groups. |
| 9 | 1340.17 | 60.03 | 0.2216 | deformation CH2 + C&9552;C of the aromatic ring |
| 10 | 1231.66 | 68.24 | 0.1660 | Si–O vibration |
| 11 | 850.35 | 60.14 | 0.2208 | C–O–C symmetric stretching |
| 12 | 618.45 | 84.71 | 0.0721 | C–Cl stretching vibration |
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