|
PP Detailed Properties
(Polypropylene)
|
Polypropylene
is available in several grades and types. The
table below lists a generally accepted summary of properties that we
believe to be reliable, however, for specific information on a particular
grade, please contact us. 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 |
|
0.905 |
| Elongation
|
D638 |
% |
10~20 |
| Tensile
Strength |
D638 |
psi
|
4,800 |
| Flexural
Strength |
D790 |
psi
|
5,400 |
| Compressive
Strength |
D695 |
|
6,000 |
Tensile
Elastic Modulas
(Young's Modulas) |
D638 |
(10~5)psi
|
1.6 |
| Flexural
Modulas |
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 |
125
v/mil. |
475~660 |
| Volume
Resistivity |
D257 |
ohm-cm
at 73ºF, 50% RH |
10~17 |
| GENERAL
PROPERTIES |
Chemical/Solvent
Resistance |
|
|
Excellent |
| Water
Absorption, 24h |
D570 |
% |
<0.03 |
| Refractive
Index |
|
|
|
Arc
Resistivity
|
D495 |
sec |
100~160 |
|
