SX-304
Low fluidity, good extrusion molding performance, heat resistance, and mechanical strength, excellent light transmittance. Suitable for lighting fixtures, automotive lighting fixtures, automotive instrument panels, and LCD display light guide plates.
| Items | Test standards | Unit | Data |
Optical Properties | |||
| Refractive index | ISO489 | - | 1.49 |
| Transmittance | ISO13468-1 | % | 93 |
| Fuzzy Coefficient(Haze) | ISO14782 | % | 0.3 |
Thermal properties | |||
| Coefficient of linear thermal expansion | ISO11359-2 | 1/℃ | 7×10-5 |
| Vicat Softening temperature（VST） | ISO306 | ℃ | 105 |
| Load heat distortion temperature 1.82Mpa | ISO75-2 | ℃ | 99 |
| 230 ℃ 3.8 kg melt flow index (MFI) | ISO1133 | g/10min | 2.2 |
Mechanical properties | |||
| Tensile strength | ISO527-2 | Mpa | 76 |
| Tensile rate | ISO527-2 | % | 6 |
| Bending strength | ISO178 | MPa | 140 |
| Flexural modulus | ISO178 | MPa | 3300 |
| Charpy impact strength (with notch) | ISO179-1 | KJ/m2 | 1.4 |
| Rockwell hardness | ISO2039-2 | - | 101 |
Electrical properties | |||
| Surface resistivity | IEC60093 | Ω | >1016 |
| Volume resistivity | IEC60093 | Ωcm | >1014 |
| Dielectric coefficient of resistance | IEC60167 | Ω | >1015 |
| Dielectric strength | IEC60243-1 | Kv/mm | 20 |
| Dielectric constant | IEC60250 | - | 3.5 |
Other properties | |||
| Density | ISO1183 | - | 1.19 |
| Molding shrinkage | ISO294-4 | % | 0.2-0.6 |
| Water absorption | ISO62 | % | 0.3 |
| Flame retardant | UL94 | - | HB |