| About |
|---|
| Styroflex® 2G66 is a styrene-butadiene block copolymer (SBC) with the properties of a thermoplastic elastomer (S-TPE) suitable for extrusion (blown and cast film) and for injection molding. Styroflex® 2G66 is also used for polymers modification and compatibilization. It is more polar than comparable SBS or SEBS grades and offers a combination of high resilience and toughness with good transparency and process stability. FEATURES Excellent thermostability Very high elongation at break High resilience High transparency Regulatory compliant APPLICATIONS Food packaging and films Stretch hood/ stretch film Impact modification / ESCR improvement Compounding, compatibilization & recycling Medical devices&& |
| Product Description | |
|---|---|
| Supplier | INEOS |
| Generic | SBC |
| Material Status | Commercial: Active |
| Features | Excellent Processability,Good Clarity,Good flexibility,Block Copolymer,Elastic,Good Tensile Strength,Heat Stabilized |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | |||
| — | 0.999 | g/cm³ | ASTM D792 |
| — | 1.00 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 200℃，5.0kg | 11 | g/10min | ASTM D1238 |
| Melt Volume Rate | |||
| 200℃，5 kg | 13.0 | cm³/10min | ISO 1133 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.070 | % | ISO 62 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| Elastic modulus | |||
| TD | 128 | MPa | ASTM D882 |
| MD | 170 | MPa | ASTM D882 |
| Tensile strain | |||
| Yield, 23 ℃ | 5.0 | % | ISO 527-2 |
| MD, fracture | 550 | % | ASTM D882 |
| TD, fracture | 540 | % | ASTM D882 |
| MD, fracture | > 500 | % | ISO 527-3 |
| Elmandorf tear strength | ASTM D1922 | ||
| MD | 530 | g | ASTM D1922 |
| TD | 540 | g | ASTM D1922 |
| Oxygen transfer rate | |||
| 23℃，0% RH | 86000 | cm³/m²/24 hr | ASTM D3985 |
| Water vapor transmittance | |||
| 23℃ | 150 | g/m²/24 hr | ASTM F1249 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 179 | ||
| -30℃ | 2.0 | kJ/m² | ISO 179 |
| Charpy Unnotch Impact strength | ISO 179 | ||
| -30℃ | 无断裂 | ISO 179 | |
| 23℃ | 无断裂 | ISO 179 | |
| Impact strength of cantilever beam notch | |||
| 23℃ | 无断裂 | ASTM D256 | |
| Dart impact equipped with measuring instruments | ASTM D3763 | ||
| Peak force | 2.41 | J | ASTM D3763 |
| Total energy | 3.41 | J | ASTM D3763 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Vicat Softening Temp | 47.8 | ℃ | ASTM D1525 4 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+15 | ohms | ASTM D257，IEC 60093 |
| Volume resistivity | > 1.0E+15 | ohms·cm | ASTM D257，IEC 60093 |
| Dielectric constant | |||
| 100 Hz | 2.50 | IEC 60250 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.565 | ASTM D542 , ISO 489 | |
| Transmittance | |||
| 550 nm | 93.0 | % | ASTM D1003 |
| Haze | 1.0 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 91 | ASTM D2240 | |
| Shaw’s D | 36 | ASTM D2240 | |
| Shaw’s A | 84 | ISO 868 | |
| Shaw’s D | 34 | ISO 868 | |
| Tensile modulus | |||
| — | 128 | MPa | ASTM D638 |
| — | 120 | MPa | ISO 527-2 |
| tensile strength | |||
| Yield, 23 ℃ | 3.10 | MPa | ASTM D638 |
| Yield, 23 ℃ | 4.00 | MPa | ISO 527-2 |
| Nominal tensile fracture strain | |||
| 23℃ | > 500 | % | ISO 527-2 |
| Bending modulus | |||
| — | 82.7 | MPa | ASTM D790 |
| — | 140 | MPa | ISO 178 |
| bending strength | |||
| 5% strain | 2.70 | MPa | ASTM D790 |
| — | 4.00 | MPa | ISO 178 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Extrusion | Nominal value | Unit | Test method |
| Processing (melt) temperature | 170 to 240 | °C | |
| Mold temperature | 30 to 50 | °C | |
| Melt temperature | 170 to 240 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 0% to 85% RH gradient |
| 3. Rate B (120°C/h), Loading 1 (10 N) |
| 4. Sodium D Line |
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