|
PP Detailed Properties
(Polypropylene)
|
The table below lists a generally accepted summary of properties that we
believe to be reliable. Please note that many of these resins
are produced in several varieties and property characteristics may vary.
Therefore, determination of resin is dependent on the application and this
table is only meant to serve as a general guideline.
|
|
PP Properties |
ASTM |
UNIT |
PP |
|
MECHANICAL PROPERTIES |
|
| Specific Gravity |
D792 |
|
.905 |
| Elongation |
D638 |
% |
10~20 |
| Tensile Strength |
D638 |
psi |
4,800 |
| Flexural Strength |
D790 |
psi |
5,400 |
| Compressive Strength |
D695 |
|
6,000 |
Tensile Elastic Modulus
(Young's Modulus) |
D638 |
(10~5)psi |
1.6 |
| Flexural Modulus |
D790 |
(10~5)psi |
1.7~2.5 |
| Hardness
Durometer |
D785 |
Rockwell R |
80~110 |
Impact Strength IZOD
73°F/23°C |
D256 |
notched ft/lbs/in |
0.5~2.2 |
|
THERMAL PROPERTIES |
|
| Melting Point |
|
°C
(°F) |
121
(250) |
Upper Service
Temperature(20,000h) |
|
°C
(°F) |
104
(220) |
| Flame Rating** |
|
UL94 |
n.r. |
| Thermal Conductivity |
C117 |
10~4 cal/sec/cm2,ºC/cm |
2.8 |
|
ELECTRICAL PROPERTIES |
|
| Dielectric Constant |
D150 |
1kHz |
2.2~2.6 |
| Dissipation Factor |
D150 |
1kHz |
0.0005~0.0018 |
| Dielectric Strength |
D149 |
125MILV. |
475~660 |
| Volume Resistivity |
D257 |
ohm-cm
at 730F, 50% RH |
10~17 |
|
GENERAL PROPERTIES |
|
Chemical/Solvent
Resistance |
|
|
Excellent |
| Water Absorption, 24h |
D570 |
% |
<0.03 |
| RefractiveIndex |
|
|
1.51~1.54 |
| Arc Resistivity |
D495 |
sec |
100~160 |
|
