Polyesters are synthetic polymers characterized by ester linkages in their backbone, available in both thermoplastic and thermoset variants with diverse molecular architectures ranging from rigid engineering grades to flexible formulations. They are widely used in automotive components, electrical insulation, textiles, beverage containers, and composite reinforcement matrices, valued for their balance of stiffness, processability, chemical resistance, and cost-effectiveness compared to many competing engineering polymers. Their versatility stems from the ability to tailor properties through copolymerization, cross-linking, and fiber reinforcement, making them a default choice when moderate mechanical performance, dimensional stability, and production volume economics align.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 351.3 | - | — | ||
Flexural Strength (MOR)(σf) | 119.5 | MPa | — | ||
Hardness (Vickers)(HV) | 71.50 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 23.59 | MPa | — | ||
Young's Modulus(E) | 465.9 | MPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 346.3 | K | — | ||
Melting Point / Solidus(Tm) | 375.4 | K | — | ||
Maximum Service Temperature(Tmax) | 608.2 | K | — | ||
Thermal Conductivity(k) | 1.000 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.018 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.696 | - | — |