Review Article
A Review on Pineapple Leaves Fibre and Its Composites
Table 8
Infrared transmittance peaks (cm
−1) of untreated natural fibres [
28,
68–
70].
| | Bond/stretching | PALF (cm−1) | Hemp (cm−1) | Sisal (cm−1) | Jute (cm−1) | Kapok (cm−1) | Kenaf (cm−1) | Oil palm fibre (cm−1) |
| | –OH | 3349.9 | 3448 | 3447.2 | 3447.9 | 3419.7 | 3338 | 3450 | | C–H | 2903.8 | 2920.5 | 2924.2 | 2918.8 | 2918.1 | 2899 | 2850 | | C=O | 1737.4 | — | 1736.5 | 1737.2 | 1741.1 | 1736 | 1735 | | C=C | 1608.3 | 1654 | 1653.9 | 1653.8 | 1596.1 | — | 1606 | | C–H | 1374.2 | 1384.1 | 1384.1 | 1384.1 | 1383.6 | — | — | | C–H | — | — | 1259.9 | 1255.6 | 1245.5 | — | — |
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