Materials and Tools
UHMWPE (Ultra High Molecular Weight Polyethylene)
UHMWPE (ultra high molecular weight polyethylene) is a commonly-used polymer which offers resistance to many chemical solutions, particularly aqueous-based ones. The polymer is durable and ideal for use in many "room temperature" applications. Care should be taken when using anything that is manufactured from UHMWPE in conjunction with some organic solutions as well as chlorinated solvents and nitric acid.
| Temperature Range | up to 50 °C |
|---|---|
| Thread Strength | N/A |
| Oxygen Permeability | N/A |
| pH Range | 0 - 14 |
| Sterilization Techniques | |
| Autoclavable? | Y |
UHMWPE (Ultra High Molecular Weight Polyethylene) Extended Properties
| General | Method | Units | ||
|---|---|---|---|---|
| Water Absorption | 24 hr. | D570 | % | 0.001 |
| Density | lb/in3 (g/cm3) | D792 | - | 0.034 (0.93) |
| Mechanical | Method | Units | ||
| Tensile Strength | D638 | psi | 3,100 | |
| Tensile Modulus | D638 | psi | 125,000 | |
| Flexural Modulus | D790 | psi | 125,000 | |
| Compressive Strength | D695 | psi | 2,000 | |
| Hardness | Shore D | D785 | - | D62-D66 |
| IZOD | Notched Impact | D256 | ft-lb/in | No Break |
| Thermal | Method | Units | ||
| Coefficient of Thermal Expansion | D696 | 105 in/in/ °F | 11.1 | |
| Heat Deflection Temperature | at 66psi | D648 | °C (°F) | 95(203) |
| Max operating Temperature | - | °C (°F) | 82(180) | |
| Thermal Conductivity | x10-4cal/cm-sec- °C BTU-in/ft2-hr- °F |
C177 C177 |
°C °F |
10.06 2.92 |
| Flammability Rating | UL94 | - | H-B | |
| Electrical | Method | Units | ||
| Dielectric Strength | (V/mil) | D149 | - | 900 |
| Dielectric Constant | at 50 KHz | D150 | - | 2.3 |
| Dissipation Factor | at 50 KHz | D150 | - | 0.0002 |
| Volume Resistivity | (ohm-cm) at 50% RH | D257 | - | >5 x 1016 |