PS
polymerPolystyrene (PS) is a rigid, amorphous thermoplastic polymer widely used for its ease of processing, clarity, and cost-effectiveness. It is a standard engineering plastic found in consumer products, packaging, medical devices, and automotive components where moderate stiffness and dimensional stability are required. PS is valued for its processability via injection molding and extrusion, though its brittleness and lower impact resistance at low temperatures make it less suitable for demanding structural applications compared to toughened alternatives like ABS or polycarbonate.
Rigid food and beverage packagingConsumer product housings and enclosuresMedical device components and diagnostic equipmentAutomotive interior trim and componentsElectrical insulation and appliance partsFoam insulation and protective packaging
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Property OverviewNormalized to typical max values
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 61.38 | ksi | — | ||
Elongation at Break(εf) | 28.41 | - | — | ||
Exfoliation Energy(Eexf) | 117.8 | meV/atom | — | ||
Flexural Strength (MOR)(σf) | 8.977 | ksi | — | ||
Hardness (Vickers)(HV) | 166.4 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 3.841 | ksi | — | ||
Young's Modulus(E) | 228.9 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 207.8 | °F | — | ||
Melting Point / Solidus(Tm) | 295.7 | °F | — | ||
Maximum Service Temperature(Tmax) | 723.1 | °F | — | ||
Thermal Conductivity(k) | 0.1534 | BTU/(hr·ft·°F) | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.08082 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.559 | eV | — | ||
| ↳ | 1.929 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 6.488 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -376.7 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00220 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.1631 | eV/atom | — | ||
Refractive Index(n) | 1.569 | - | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.