|
Item |
ASTM |
Unit: SI
(conventional) |
U-8000 |
U-8400H |
Mechanical
Properties |
Density |
D-792 |
- |
1.26 |
1.28 |
| Water absorption (1/8", 24hrs) |
D-570 |
% |
0.15 |
|
| Light transmittance (Thickness: 3mm) |
D-1003 |
% |
87 |
88 |
| Tensile strength |
D-638 |
MPa {kg/cm2}
|
71 {720} |
63 {640} |
| Elongation at break |
D-638 |
% |
105 |
170 |
| Bending strength |
D-790 |
MPa {kg/cm2} |
103 {1,050} |
95 {970} |
| Bending modulus |
D-790 |
GPa {kg/cm2} |
2.7 {28,000} |
2.5{26,000} |
| Compressive strength (Yield) |
D-695 |
MPa {kg/cm2} |
86 {880} |
80 {820} |
Izod impact strength
(1/8", with notch) |
D-256 |
J/m
{kg-Ecm/cm} |
108 {11} |
69 {7} |
| Rockwell hardness |
D-785 |
R |
125 |
120 |
Thermal
properties
|
Deflection temperature under load
1.8MPa {18.6kg/cm2} |
D-648 |
°C |
110 |
95 |
| Linear expansion coefficient |
D-696 |
10-5/K
{10-5cm/cm/°C} |
6.2 |
6.4 |
Electrical
Properties |
Dielectric breakdown strength |
D-149
|
MV/m {kv/mm} |
44 |
30 |
| Specific volume resistivity |
D-257 |
Ωm {Ωcm} |
2x1014
{2x1016} |
2x1014
{2x1016} |
| Dielectric constant (106Hz) |
D-150 |
PF/m |
27 {3.0} |
27 {3.0} |
| Dielectric dissipation factor(106Hz) |
D-150 |
- |
0.015 |
0.01 |
| Ark resistance |
D-495 |
s |
120 |
120 |
| Tracking resistance |
IEC |
V |
232 |
- |
Other
properties |
Molding shrinkage
(Thickness: 3mm)
Flow direction, orthogonal direction |
- |
% |
0.8 |
0.8 |
![[UNITIKA U-polymer]](images/tit.gif)
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