|
ULTEM Detailed
Properties
(Polyetherimide)
|
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.
|
| ULTEM
Properties |
ASTM |
UNIT |
ULTEM |
|
MECHANICAL
PROPERTIES |
| Specific
Gravity |
D792 |
|
1.27~1.51 |
| Elongation
|
D638 |
% |
60 |
| Tensile
Strength |
D638 |
psi |
16,500 |
| Flexural
Strength |
|
psi |
20,000 |
| Compressive
Strength |
D695 |
|
22,000 |
| Transversal
Contraction (Poisson's Ratio) |
|
|
n.a |
Tensile
Elastic Modulas
(Young's Modulas) |
D638 |
psi |
475,000 |
Flexural
Modulas
|
D790 |
psi |
500,000 |
| D790 |
103MPa
(103kgf/cm2) |
n.a |
| Flex
Life |
D2176 |
(MIT
cycles) |
n.a |
| Hardness
Durometer |
D636 |
Shore
D |
n.a |
| Coefficient
of Friction |
D1984 |
Static |
n.a |
| Abrasion
Resistance |
Taber |
1000
revs. |
n.a |
Impact
Strength IZOD
73°F/23°C |
D256 |
notched
ft/lbs/in |
no
breakdown |
| THERMAL
PROPERTIES |
| Melting
Point |
|
°C
(°F) |
n.a |
Upper
Service
Temperature(20,000h) |
|
°C
(°F) |
200
(392) |
| Flame
Rating** |
|
UL94 |
VO |
Thermal Conductivity
|
|
BTU/hr/sq
ft/deg F in |
n.a |
| C117 |
cal/sec/cm2,ºC/cm |
n.a |
| Heat
of Fusion |
|
BTU/LB
cal/g |
n.a
n.a |
| Heat
of Combustion |
|
BTU/LB
cal/g |
n.a
n.a |
| Low
Temperature Embrittlement |
|
°C
(°F) |
n.a
n.a |
| ELECTRICAL
PROPERTIES |
| Dielectric
Constant |
|
D150/103Hz |
n.a |
| |
D150/106Hz |
n.a |
| Dissipation
Factor |
|
D150/103Hz |
n.a |
| |
D150/106Hz |
n.a |
| Dielectric
Strength |
|
125MILV.
10MILV. |
830
n.a |
| Volume
Resistivity |
D257 |
ohm-cm |
6.7
x 1016 |
| Surface
Resistivity |
|
ohm/sq. |
n.a |
| GENERAL
PROPERTIES |
Chemical/Solvent
Resistance |
|
|
Good |
| Water
Absorption, 24h |
|
% |
0.25 |
| Refractive
Index |
|
|
1.63-1.68 |
Arc Resistivity
|
|
% |
n.a |
| D495 |
sec |
n.a |
|
