CPVC _ PVC Kıyaslaması
ASTM | Property | PVC | CPVC |
|
|---|---|---|---|---|
| PHYSICAL | ||||
| D792 | Specific Gravity | 1.40-1.44 | 1.51-1.55 | |
| D792 | Specific volume (in.³/lb.) | 20.5-19.1 | 41504 | |
| D570 | Water absorption, 24 h, 1/8-in thk(%) | .05-3.0 | .02-.15 | |
| Poisson's Ratio @ 73°F | 0.38 | 0.27 | ||
| D1784 | Cell Classification | 12454-B | 23447-B | |
| MECHANICAL | ||||
| D638 | Tensile strength (psi @ 73°F) | 7 | 8 | |
| D638 | Tensile modulus (psi @ 73°F) | 400 | 387 | |
| D790 | Flexural strength (psi @ 73°F) | 13 | 15.3 | |
| D790 | Flexural modulus (psi @ 73°F) | 415 | 415 | |
| D695 | Compressive strength (psi @ 73°F) | 9.6 | 10.1 | |
| D695 | Compressive modulus (psi @ 73°F) | 307 | 196 | |
| D256 | Impact strength, Izod (ft-lb/in of notch) | 1.0 | 41395 | |
| D785 | Hardness, Rockwell (R) | 115±5 | 119 | |
| Taber abrasion (Ring CS-10 @1kg) | 15-20 | 20 | ||
| THERMAL | ||||
| C177 | Thermal conductivity (Btu-in/hr-ft2-'F) | 41334 | 0.95 | |
| D696 | Coefficient of thermal expansion | |||
| (10-5 in/in-°F) | 3.0 | 41367 | ||
| (10-5 in/in-°C) | 41370 | 41312 | ||
| D648 | Heat distortion temp | 217 | ||
| (°F @ 264 psi) | 158 | 218 | ||
| (°F @ 66 psi) | 165 | 250 | ||
| Max Operating Temperature (°F) | 140 | 210 | ||
| ELECTRICAL | ||||
| D147 | Dielectric strength (V/mil) | 1.4 | 1.25 | |
| D150 | Dielectric constant | |||
| 3O°F/-l°C | 3.7@60hz | 3.3@1000hz | ||
| D257 | Volume resistivity (ohm-cm) | |||
| At 73°F 50%RH | 4±1x10 15 | 3.4 x 10 15 | ||
| FLAMMABILITY | ||||
| E84 | Flame spread | 45931 | 43191 | |
| E84 | Smoke Developed | 600-1,000 | 9-285 | |
| E84 | Flash Point (°F) | 730 | 900 | |
| D2863 | Limiting Oxygen Index (LOI) | 43 | 60 | |
| D635 | Average Burn Time (sec) | <5 | <5 | |
| D635 | Average Extent of Burning (in) | <.25 | <.25 | |
| E162 | Flame Spread Index | <10 | <10 | |
| UL 94 | Flammability rating (.062) | V-0 | V-0, 5VB, 5VA |