Research Article
Thermal and Morphological Assessment of the Penta-Layered, Hybrid U-Polyester Composite Reinforced with Glass Fibers and Polypropylene
Table 1
Properties of E-glass fiber and unsaturated polyester resin.
| | Properties | Tensile strength (MPa) | Compressive strength (MPa) | Refractive index | Melting point (°C) | Young’s modulus (GPa) | Thermal expansion (μm/m·°C) | Density (g/cm3) | Thickness (mm) |
| | E-glass | 3445 | 1080 | 1.558 | 1725 | 76.0 | 5.00 | 2.57 | 1.70 | | Polypropylene | 4800 | 220 | 1.49 | 160 | 40 | 8–10 | 0.905 | 0.80 | | Unsaturated polyester | 90.0 | 55.0 | 1.54 | 250 | 3.23 | — | 1.35 | 1.50 |
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