UHMW MECHANICAL PROPERTIES
|
|
PROPERTY
|
ASTM TEST
|
UNITS METRIC (U.S)
|
.030"
|
.060"
|
.125"
|
| Density |
D792 |
gm/cc |
0.93 |
0.93 |
0.93 |
| Tensile Strength @ Yield |
D638 |
MPa(psi) |
23(3300) |
20(2964) |
22(3227) |
| Tensile Strength @ Break |
D638 |
MPa(psi) |
53(7740) |
49(7056) |
44(6373) |
| Elongation @ Break |
D638 |
% |
460 |
463 |
466 |
| Youngs "E" Modulus |
D638 |
MPa (psi x 105) |
725(1.05) |
731(1.06) |
672(0.97) |
| Izod Impact Strength (23oC) |
D256 (1) |
J/m(ft-lb/in notch) |
|
|
|
| Izod Impact Strength (-40oC) |
D256 (1) |
J/m(ft-lb/in notch) |
|
|
|
| Hardness Shore "D" |
D2240 |
- |
65 |
65 |
65 |
| Abrasion Resistance |
|
|
|
|
|
| Water Absorbtion |
D570 |
% |
Nil |
Nil |
Nil |
| Relative Solution Viscosity |
D4020 |
dl/gm |
2.3 - 3.5 |
2.3 - 3.5 |
2.3 - 3.5 |
| COEFFICIENT OF FRICTION |
| Static |
|
|
0.16 |
0.16 |
0.16 |
| Dynamic |
|
|
0.14 |
0.13 |
0.14 |
|
(1) Izod Impact Strength: Samples have two(15° +/- 1/2°) notches on opposite sides to a depth of 5mm.
|
COMPARISON OF DYNAMIC COEFFICIENT OF FRICTION
ON POLISHED STEEL
|
|
PROPERTY
|
DRY
|
WATER
|
OIL
|
| UHMW-PE |
.10 - .22 |
.05 - .10 |
.05 - .08 |
| NYLON 6 |
.15 - .40 |
.14 - .19 |
.02 - .11 |
| NYLON 6/6 |
.15 - .40 |
.14 - .19 |
.02 - .11 |
| NYLON/MoS2 |
.12 - .20 |
.10 - .12 |
.08 - .10 |
| PTFE |
.04 - .25 |
.04 - .08 |
.04 - .05 |
| ACETAL COPOLYMER |
.15 - .35 |
.10 - .20 |
.05 - .10 |
THERMAL PROPERTIES
|
|
PROPERTY |
ASTM TEST |
UNITS METRIC (U.S) |
.030" |
.060" |
.125" |
| Crystalline Melting Range |
Polarizing |
°C(°F) |
136(276) |
134(273) |
134(273) |
| Crystallinity |
D3417-96 |
% |
48 |
47 |
50 |
|
COEFFICIENT OF LINEAR EXPANSION |
| 20 - 100 °C |
D696 |
TBD |
TBD |
TBD |
TBD |
| -20 to -100 °C |
D696 |
TBD |
TBD |
TBD |
TBD |
ELECTRICAL PROPERTIES
|
| PROPERTY |
ASTM TEST |
UNITS METRIC (U.S) |
.030" |
.060" |
.125" |
| Volume Resistivity |
D357 |
Ohms/cm |
5.9544x10^7 |
1.4516x10^7 |
> 2.000x10^13 |
| Dielectric Strength |
D150 |
KV/cm (V/mil) |
* |
* |
142 |
| Dielectric Constant |
D150 |
|
2.481 |
2.454 |
2.542 |
| Surface Resistivity 1% Carbon Black |
D257 |
Ohms |
10^3 |
10^3 |
10^3 |
| Static Decay 1% Carbon Black |
|
Seconds |
< .01 |
< .01 |
< .01 |
| DISSIPATION FACTOR |
| At 50Hz |
D150 |
|
0.0594 |
0.0213 |
0.0082 |
| At 10KHz |
D150 |
|
0.1085 |
0.0690 |
0.0022 |
| At 5MHz |
D150 |
|
0.1035 |
0.2340 |
0.0034 |
|
* No reading could be taken due to material thickness.
|
- Material Safety Data Sheets (MSDS) Available on Request.
|
|
