Natural rubber (NR) is an elastomeric polymer derived from the latex of the rubber tree (Hevea brasiliensis), consisting primarily of polyisoprene chains. It is widely used in automotive tires, seals, gaskets, and vibration-damping components where high extensibility, resilience, and moderate mechanical strength are required. Engineers select NR for applications demanding excellent elasticity and low-cost production, though it is typically compounded with reinforcing fillers (carbon black, silica) and protective additives to enhance durability against oxidation, ozone, and thermal degradation.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 0.01545 | ksi | — | ||
Elongation at Break(εf) | 493.8 | - | — | ||
Ultimate Tensile Strength(σUTS) | 1.578 | ksi | — | ||
Young's Modulus(E) | 2.340 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | -71.19 | °F | — | ||
Melting Point / Solidus(Tm) | 110.4 | °F | — | ||
Maximum Service Temperature(Tmax) | 704.9 | °F | — | ||
Thermal Conductivity(k) | 0.09639 | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.105 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.545 | - | — |