Mechanical properties of coir and different commonly used natural fibers.
| Sources | Elastic modulus (GPa) | Strength (MPa) | Density (g cm−3) | Elongation at break (%) | Ref. |
|---|---|---|---|---|---|
| Coir (Tran et al.) | 4.6–4.9 | 210–250 | 1.3 | — | 89 |
| Coir (Malkpuram et al.) | 4–6 | 131–175 | 1.15 | 15–40 | 75 |
| Coir (Defoirdt et al. and Nam et al.) | 4–7 | 186–345 | 1.29 | — | 90 and 91 |
| Coir (Balaji et al.) | — | 54 | 1.45 | 3–7 | 92 |
| Coir (Barbosa Jr et al.) | — | 120 ± 5 | — | 8.0 ± 1.0 | 76 |
| Flax (Kabir et al.) | 30–60 | 345–1100 | 1.5 | 0.2–0.7 | 77 |
| Abaca (Mahmud et al.) | 12 | 430–760 | 1.5 | 3–10 | 18 |
| Bamboo (Hasan et al.) | 27–40 | 500–575 | 1.2–1.5 | 1.9–3.2 | 1 |
| Sugarcane bagasse (Hasan et al.) | 5.1–6.2 | 170–350 | 1.1–1.6 | 6.3–7.9 | 1 |
| Jute (Kabir et al.) | 13–26.5 | 393–793 | 1.3–1.4 | 1.16–1.5 | 77 |
| Hemp (Kabir et al.) | 30–60 | 690 | 1.5 | 1.6 | 77 |
| Ramie (Kabir et al.) | 61.4–128 | 400–938 | 1.5 | 1.2–3.8 | 77 |
| Sisal (Kabir et al.) | 9.4–22.0 | 468–640 | 1.45 | 3–7 | 77 |
| Pineapple (Pai et al.) | 34.5–82.5 | 413–1627 | 1.52–1.56 | — | 93 |