PEO (polyethylene oxide) is a semi-crystalline synthetic polymer notable for its high water solubility, low toxicity, and excellent biocompatibility, making it distinct among commodity plastics. It is widely used in pharmaceutical delivery systems (as a matrix for controlled-release tablets and injectable formulations), cosmetics, personal care products, and industrial applications including adhesives and coatings. Engineers select PEO when water solubility, gentle dissolution profiles, or biomedical compatibility are critical—particularly in oral medications, wound dressings, and transdermal patches where its ability to form clear solutions and its low irritancy provide advantages over conventional polymers.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 1.368 | ksi | — | ||
Elongation at Break(εf) | 141.4 | - | — | ||
Hardness (Vickers)(HV) | 322 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 0.7799 | ksi | — | ||
Young's Modulus(E) | 24.63 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | -51.01 | °F | — | ||
Melting Point / Solidus(Tm) | 143.6 | °F | — | ||
Maximum Service Temperature(Tmax) | 592.1 | °F | — | ||
Thermal Conductivity(k) | 2.877 | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.328 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.489 | - | — |