polypropylene
polymerPolypropylene (PP) is a semi-crystalline thermoplastic polymer widely recognized for its balance of stiffness, chemical resistance, and processability. It is one of the most produced and recycled plastics globally, selected by engineers for applications requiring moderate strength with excellent cost-effectiveness and environmental compatibility. Common substitutes include polyethylene (lower stiffness but better flexibility) and engineering plastics like nylon or PET (higher performance but significantly higher cost); polypropylene fills the middle ground where rigidity and chemical resistance are needed without premium material expense.
automotive interior trim and bumpersfood and beverage packagingconsumer appliance housingsinjection-molded containers and closurespipe and fitting systemsmedical device components
Compliance & Regulations
?UL 94?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | — | ksi | — | — | |
Elongation at Break(εf) | — | - | — | — | |
Flexural Strength (MOR)(σf) | — | ksi | — | — | |
Hardness (Vickers)(HV) | — | HV | — | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | — | — | |
Young's Modulus(E) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | °F | — | — | |
Melting Point / Solidus(Tm) | — | °F | — | — | |
Maximum Service Temperature(Tmax) | — | °F | — | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | — | — |
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.