Description
Yuntianhua M90 is a POM Resin grade.
Product Specification
| Property | Test Method | Test Conditions | Unit | Test Result |
|---|---|---|---|---|
| Product | POM | |||
| Type | YUNTIANHUA® M90 | |||
| Physical Properties | ||||
| Specific Gravity | ISO 1183 | / | g/cm³ | 1.41 |
| Water Absorption | ISO 62 | 23℃, 24hr | % | 0.6 |
| Melt Mass-Flow Rate | ISO 1133 | 190℃, 2.16kg | g/10min | 9 |
| Mechanical Properties | ||||
| Tensile Modulus | ISO 527 | / | MPa | 2600 |
| Tensile Strength | ISO 527 | Yield | MPa | 60 |
| Elongation | ISO 527 | At Break | % | 35 |
| Flexural Strength | ISO 178 | / | MPa | 88 |
| Flexural Modulus | ISO 178 | / | MPa | 2500 |
| Charpy Notched Impact Strength | ISO 179 | Type 1eA | kJ/m² | 6 |
| Thermal Properties | ||||
| Heat Deflection Temperature | ISO 75 | Unannealed, 1.80MPa | ℃ | 95 |
| Flammability Properties | ||||
| Flame Rating | UL 94 | All Colors, 0.75mm | – | HB |
| Flame Rating | UL 94 | All Colors, 3.0mm | – | HB |
| UL Properties | ||||
| RTI Electrical | UL 746B | All Colors, 0.75mm | ℃ | 50 |
| RTI Electrical | UL 746B | All Colors, 3.0mm | ℃ | 50 |
| RTI Impact | UL 746B | All Colors, 0.75mm | ℃ | 50 |
| RTI Impact | UL 746B | All Colors, 3.0mm | ℃ | 50 |
| RTI Strength | UL 746B | All Colors, 0.75mm | ℃ | 50 |
| RTI Strength | UL 746B | All Colors, 3.0mm | ℃ | 50 |
| Injection Molding Conditions | ||||
| Drying Temperature | / | Injection Molding | ℃ | 80–90 |
| Drying Time | / | Injection Molding | hr | 3–4 |
| First Zone Temperature | / | Injection Molding | ℃ | 160–180 |
| Second Zone Temperature | / | Injection Molding | ℃ | 170–200 |
| Third Zone Temperature | / | Injection Molding | ℃ | 190–210 |
| Nozzle Temperature | / | Injection Molding | ℃ | 180–210 |
| Melt Temperature | / | Injection Molding | ℃ | 180–210 |
| Mold Temperature | / | Injection Molding | ℃ | 60–90 |
| Injection Pressure | / | Injection Molding | MPa | 50–100 |
| Screw Speed | / | Injection Molding | rpm | 50–120 |
| Back Pressure | / | Injection Molding | MPa | 0.5 |
| Holding Pressure | / | Injection Molding | MPa | 30–80 |
| Extrusion Molding Conditions | ||||
| Melt Temperature | / | Extrusion Molding | ℃ | 180–190 |
Typical values should be confirmed against the latest producer-issued TDS before final use.