| About |
|---|
| In addition to the standard SUMIPEX which features of transparency, weather resistance and mechanical strength, SUMIPEX HT incorporates substantially greater impact strength. This increased strength functions to reduce the amount of cracking that might occur, at the time of molding or transportaion.&& |
| Product Description | |
|---|---|
| Supplier | Sumitomo |
| Generic | PMMA |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Weather resistance is good,High impact resistance,High liquidity,Good tear strength,HB |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.17 | g/cm³ | JIS K7112 |
| Melt Flow Rate | |||
| 230℃，3.80kg | 14 | g/10min | JIS K7210 |
| Shrinkage rate | |||
| MD | 0.40 to 0.70 | % | ASTM D955 |
| Water absorption rate | |||
| 24hr | 0.40 | % | JIS K7209 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | 3.5 | kJ/m² | JIS K7110 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, annealed | 84.0 | ℃ | JIS K7207 |
| Vicat Softening Temp | 92.0 | ℃ | JIS K7206 |
| Linear coefficient of thermal expansion | |||
| MD | 8.0E-5 | 1/℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+16 | ohms | JIS K6911 |
| Volume resistivity | > 1.0E+15 | ohms·cm | JIS K6911 |
| Dielectric constant | 3.10 | JIS K6911 | |
| Dissipation factor | 0.040 | JIS K6911 | |
| insulation resistance | > 1.0E+15 | ohms | JIS K6911 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 1.60 mm, all colors | HB | UL 94 | |
| Burning rate | 30 | mm/min | ASTM D63 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.490 | JIS K7105 | |
| Transmittance | 92.0 | % | JIS K7105 |
| Haze | 1.5 | % | JIS K7105 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Voltage Resistance | 20.0 | kV/min | JIS K6911 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 49.0 | MPa | JIS K7113 |
| Tensile strain | |||
| fracture | 47 | % | JIS K7113 |
| Bending modulus | 2300 | MPa | JIS K7203 |
| bending strength | 80.0 | MPa | JIS K7203 |
| Bending stiffness | > 8.0 | % | JIS K7203 |
| Rockwell hardness | |||
| M-level | 65 | JIS K7202 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 70 to 80 | °C | |
| Drying time | 4.0 to 6.0 | hr | |
| Barrel rear temperature | 220 to 250 | °C | |
| Barrel middle temperature | 220 to 250 | °C | |
| Barrel front temperature | 220 to 250 | °C | |
| Mold temperature | 70 to 80 | °C | |
| Injection pressure | 58.8 to 137 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A |
| 3. VST 25±3, 4 hrs |
| 4. 60%, 1kHz |
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