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Gel time of composites containing 5–20% natural filler
| Composition | Ep | Ep + Hemp fibres | Ep + Pepper powder | Ep + Collagen | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % Natural filler | 0 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 | 5 | 10 | 15 | 20 |
| Gel time (min) | 65 | 67 | 68 | 70 | 74 | 104 | 95 | 76 | 58 | 85 | 94 | 104 | 107 |
Characteristics of natural fibres and glass fibres
| PROPERTIES | NATURAL FIBRES | GLASS FIBRES |
|---|---|---|
| Density | low | 3 x higher |
| Renewability | yes | No |
| Recyclability | yes | No |
| Health risks during inhalation | low | High |
| Biodegradability | yes | No |