Research Article
Mechanic and Acoustic Properties of the Sound-Absorbing Material Made from Natural Fiber and Polyester
Table 1
The physical and chemical properties of the composite materials.
| | Text item | Density (g/cm3) | MC (%) | 2 h thickness expansion rate of water absorbing (%) | MOR (MPa) | IB (MPa) | Formaldehyde emission content (mg/100 g) |
| | Standard (functions) | | 4–12 | 12 | 2.0
| — | 9 | | Text value | 0.20 | 3.7 | 5.9 | 2.6 | 0.42 | 0 |
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