PEN
polymerPEN (polyethylene naphthalate) is a semi-crystalline polyester thermoplastic that combines the chemical backbone of naphthalic acid with polyethylene glycol, offering superior thermal stability and barrier properties compared to its more common cousin PET. It is widely employed in demanding packaging applications—particularly beverage bottles, films, and barrier layers—as well as in electrical and electronics components where elevated temperature resistance and dimensional stability are critical. Engineers select PEN over PET when higher service temperatures, lower gas permeability, or improved chemical resistance are required, though at the trade-off of higher cost and slightly reduced processability.
high-temperature beverage packagingbarrier films and laminateselectrical insulation and connectorsautomotive fluid containersmicrowave-safe food containersphotographic and specialty films
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Flexural Strength (MOR)(σf) | — | Pa | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — | |
Melting Point / Solidus(Tm) | — | K | — | — | |
Maximum Service Temperature(Tmax) | — | K | — | — | |
Thermal Conductivity(k) | — | W/(m·K) | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | — | - | — | — |
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.