PEI (Ultem 1000) Unfilled vs PET (Polyethylene Terephthalate)
Property comparison of PEI (Ultem 1000) Unfilled and PET (Polyethylene Terephthalate), both polymer.
| Property | PEI (Ultem 1000) Unfilled | PET (Polyethylene Terephthalate) | Difference |
|---|---|---|---|
| Tensile strength | 105 MPa | 55 MPa | -48% |
| Elongation | 60 % | 30 % | -50% |
| Elastic modulus | 3,300 MPa | 2,800 MPa | -15% |
| Poisson ratio | 0.37 | 0.38 | +3% |
| Density | 1,270 kg/m³ | 1,370 kg/m³ | +8% |
| Thermal conductivity | 0.22 W/m·K | 0.24 W/m·K | +9% |
| Specific heat | 1,250 J/kg·K | 1,170 J/kg·K | -6% |
| Coefficient of thermal expansion | 0.000056 1/K | 0.00006 1/K | +7% |
Difference is PET (Polyethylene Terephthalate) relative to PEI (Ultem 1000) Unfilled. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM
- standard
- ASTM
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