U polymer
U series resins (Transparent chemical-resistant grade)
U series resins are polymer alloys that are improved in resistance to oils and chemicals, the shortcoming of amorphous resins. They are transparent and have a greater moisture-blocking property than other resins having similar structures. They are also suitable for blow molding.
Characteristics
- Transparent, resistant to chemicals, especially to oils, alcohols and others
- Weather Resistance
- Blended into PET resins for improvement in heat resistance.
Properties
|
|
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 |
0.12 | |
| 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 |
|
| Flexural strength | D-790 |
MPa {kg/cm2} |
103 {1,050} |
95 {970} |
|
| Flexural 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 |
| Coefficient of linear thermal expansion | 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 |