Poly(dimethylsiloxane), commonly known as silicone, is a synthetic elastomer composed of a backbone of alternating silicon and oxygen atoms with methyl groups attached. It is widely used across consumer, medical, industrial, and aerospace sectors due to its exceptional thermal stability, low-temperature flexibility, chemical inertness, and biocompatibility. Engineers select PDMS over conventional polymers when applications demand resistance to extreme temperatures, UV exposure, moisture, or when direct contact with biological systems is required.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 469.7 | kPa | — | ||
Flexural Strength (MOR)(σf) | 200.0 | kPa | — | ||
Ultimate Tensile Strength(σUTS) | 3.000 | MPa | — | ||
Young's Modulus(E) | 2.466 | MPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 151.7 | K | — | ||
Melting Point / Solidus(Tm) | 421.3 | K | — | ||
Maximum Service Temperature(Tmax) | 538.2 | K | — | ||
Thermal Conductivity(k) | 0.1453 | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 3.600 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.416 | - | — |