Polybutadiene is a synthetic rubber polymer produced through polymerization of the 1,3-butadiene monomer, available in cis and trans isomeric forms that influence its properties and processing characteristics. It is widely used in tire manufacturing (particularly tire treads and sidewalls), conveyor belts, gaskets, and vibration-damping applications where its inherent elasticity and resilience are valued. Engineers select polybutadiene for applications requiring good flexibility, impact resistance, and durability in dynamic loading conditions, often blending it with natural rubber or styrene-butadiene rubber to optimize cost and performance for specific service environments.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 7.356 | MPa | — | ||
Elongation at Break(εf) | 223.5 | - | — | ||
Flexural Strength (MOR)(σf) | 2.555 | GPa | — | ||
Ultimate Tensile Strength(σUTS) | 12.78 | MPa | — | ||
Young's Modulus(E) | 36.04 | MPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 206.1 | K | — | ||
Melting Point / Solidus(Tm) | 402.4 | K | — | ||
Maximum Service Temperature(Tmax) | 580.2 | K | — | ||
Thermal Conductivity(k) | 0.1000 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.433 | - | — |