| About |
|---|
| Preliminary Data Sheet Hostaform® acetal copolymer grade XT 20 is highly impact modified grade for very demanding applications. Hostaform® XT 20 provides exceptional impact strength and flexibility over standard impact modified acetal grades. Chemical abbreviation according to ISO 1043-1: POM-HI&& |
| Product Description | |
|---|---|
| Supplier | Celanese |
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Good flexibility,High impact resistance |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.33 | g/cm³ | ISO 1183 |
| Melt Volume Rate | |||
| 190℃，2.16 kg | 1.00 | cm³/10min | ISO 1133 |
| Shrinkage rate | ISO 294-4 | ||
| TD | 1.2 | % | ISO 294-4 |
| MD | 1.4 | % | ISO 294-4 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.80 | % | ISO 62 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 1200 | MPa | ISO 527-2/1A/1 |
| tensile strength | |||
| yield | 35.0 | MPa | ISO 527-2/1A/50 |
| Tensile strain | |||
| yield | 25 | % | ISO 527-2/1A/50 |
| Bending modulus | |||
| 23℃ | 1100 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -30℃ | 15 | kJ/m² | ISO 179/1eA |
| 23℃ | 100 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | No Break | ISO 179/1eU | |
| 23℃ | No Break | ISO 179/1eU |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 64.0 | ℃ | ISO 75-2/A |
| 0.45 MPa, unannealed | 124 | ℃ | ISO 75-2/B |
| Melting temperature | 166 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| TD | 1.2E-4 | 1/℃ | ISO 11359-2 |
| MD | 1.2E-4 | 1/℃ | ISO 11359-2 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 80 to 100 | °C | |
| Drying time | 3.0 | hr | |
| Barrel rear temperature | 170 to 180 | °C | |
| Barrel middle temperature | 180 to 190 | °C | |
| Barrel front temperature | 180 to 190 | °C | |
| Nozzle temperature | 180 to 200 | °C | |
| Processing (melt) temperature | 180 to 200 | °C | |
| Mold temperature | 60 to 80 | °C | |
| Injection pressure | 60.0 to 120 | MPa | |
| Injection speed | Slow | ||
| Hold pressure | 60.0 to 120 | MPa | |
| Back pressure | 0.00 to 2.00 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 10°C/min |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |