Materials and Tools
Polypropylene
Polypropylene is used across many industries as a good, general-use polymer. It offers resistance to many standard chemical solutions across the full pH range, making it a product of choice for many applications. There are chemicals that will interact with polypropylene, either degrading it, discoloring it, or causing it to crack, and as such, it is important to ensure that the chemical solutions being used are compatible with this polymer. Such chemicals include chlorinated and aromatic solutions, as well as some organic solvents.
| Temperature Range | up to 40 °C |
|---|---|
| Thread Strength | Fair |
| Oxygen Permeability | N/A |
| pH Range | 0 - 14 |
| Sterilization Techniques | Ethylene oxide |
| Autoclavable? | Y |
Polypropylene Extended Properties
| General | ASTM or UL test | Units | ||
|---|---|---|---|---|
| Water Absorption | 24 hours Sat. |
ASTM D570 ASTM D570 |
% % |
0.03 0.2 |
| Density | ASTM D792B | g/cc | 0.9 | |
| Melt Flow Rate | 230 °C/2.16kg | ASTM D1238 | g/10 min. | 11 |
| Haze | ASTM D1003A | % | 10 | |
| Hardness, Rockwell R | ASTM D785 | - | 77 | |
| Mechanical | ASTM or UL test | Units | ||
| Tensile Strength | Ultimate | ASTM D638 | MPa(psi) | 30(4,351) |
| Flexural Modulus | GPa | ASTM D790A | GPa(ksi) | 1(145 |
| Impact Strength | ASTM D256A | ft-lb/in | 1.2 | |
| Elongation | Yield | ATSM D638 | % | 13 |
| Thermal | ASTM or UL test | Units | ||
| Heat Deflection Temp | at .46 MPa, °C | ASTM D648 | °F | 183 |
| Maximum Continuous Temperature | ASTM D794 | °F | 220 |