| Customization: | Available |
|---|---|
| CAS No.: | 9002-81-7 |
| Formula: | (CH2o)N |
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POM resins are semi-crystalline, thermoplastic polymers made by the polymerization of formaldehyde, and are also commonly referred to as polyoxymethylene (POM).
POM Raw Material, Scientific name Polyoxymethylene POM (POM), also known as race steel, special steel. It is based on formaldehyde and other raw materials for polymerization. POM-H (polyoxymethylene homopolymer), POM-K (polyoxymethylene copolymer) is a high density, high crystallinity thermoplastic engineering plastics.
POM resin could be produced with different high performance properties, like strength (with GF-glass fibers, MF-mineral fibers, Talc, CF-carbon fibers), flame retardant(FR), weather-ability(UV), heat resistance, high flow ability, high gloss, and flammability, etc
They have gained widespread recognition for reliability in many thousands of engineering components all over the world.
POM has been used in the automotive, appliance, construction, hardware, electronics, and consumer goods industries, among others.
POM plastic granules has been widely used in electronic and electrical, mechanical , instruments, daily-use light industrial, automotive, building materials, agriculture and other fields. In many new fields of applications such as medical technology, sports equipment, etc.,
POM plastic granules as a very low coefficient of friction and good geometric stability, particularly suited to the production of gears and bearings. It also has properties as a result of high temperature, it is also used pipe device (pipe valves, pump casing), lawn equipment, etc.
| Physical properties | rating | Units | Test methodology |
| specific gravity | 1.41 | g/cm³ | ASTM D792, ISO 1183 |
| Melting rate (melt flow rate) | 9 | g/10 min | ASTM D1238 |
| Melting volume flow rate (MVR) (190°C/2.16 kg). | 8 | cm³/10min | ISO 1133 |
| Shrinkage | |||
| flowing | 2.2 | % | ASTM D955 |
| Lateral flow | 1.8 | % | ASTM D955 |
| Vertical flow direction | 1.9 | % | ISO 294-4 |
| Flow direction | 2 | % | ISO 294-4 |
| Water absorption | ISO 62 | ||
| Saturation, 23°C | 0.75 | % | ISO 62 |
| Equilibrated, 23°C, 50% RH | 0.2 | % | ISO 62 |
| Mechanical properties | rating | Units | Test methodology |
| Tensile modulus | 2760 | MPa | ISO 527-2/1A/1 |
| tensile strength | |||
| Yield, -40 °C | 94.5 | MPa | ASTM D638 |
| Yield, 23 °C | 60.7 | MPa | ASTM D638 |
| Yield, 71 °C | 34.5 | MPa | ASTM D638 |
| succumb | 66 | MPa | ISO 527-2/1A/50 |
| Tensile strain (yield). | 10 | % | ISO 527-2/1A/50 |
| Tensile creep modulus | ISO 899-1 | ||
| 1 hr | 2450 | MPa | ISO 899-1 |
| 1000 hr | 1350 | MPa | ISO 899-1 |
| Flexural modulus (23°C). | 2550 | MPa | ISO 178 |
| Impact performance | rating | Units | Test methodology |
| Simple support beam notched impact strength | ISO 179/1eA | ||
| -30°C | 6 | kJ/m² | ISO 179/1eA |
| 23°C | 6 | kJ/m² | ISO 179/1eA |
| Simple support beam without notched impact strength | ISO 179/1eU | ||
| -30°C | 180 | kJ/m² | ISO 179/1eU |
| 23°C | 190 | kJ/m² | ISO 179/1eU |
| Cantilever notched impact strength (23°C). | 5.7 | kJ/m² | ISO 180/1A |
| Thermal performance | rating | Units | Test methodology |
| Heat deflection temperature | |||
| 0.45 MPa, unannealed | 158 | °C | ISO 75-2/B |
| 1.8 MPa, unannealed | 110 | °C | ASTM D648 |
| 1.8 MPa, unannealed | 101 | °C | ISO 75-2/A |
| Melting temperature 1 | 165 | °C | ISO 11357-3, ASTM D3418 |
| Linear coefficient of thermal expansion | ISO 11359-2 | ||
| flowing | 1.20E-04 | cm/cm/°C | ISO 11359-2 |
| Transverse | 1.20E-04 | cm/cm/°C | ISO 11359-2 |
| Electrical performance | rating | Units | Test methodology |
| Surface resistivity | 3.00E+16 | ohms | IEC 60093 |
| Volume resistivity | |||
| -- | 1.00E+14 | ohms·cm | ASTM D257 |
| -- | 8.00E+14 | ohms·cm | IEC 60093 |
| Mold filling analysis | rating | Units | Test methodology |
| Density of Melt | 1.2 | g/cm³ | Internal methods |
| Ejection Temperature | 165 | °C | Internal methods |
| Specific Heat Capacity of Melt | 2210 | J/kg/°C | Internal methods |
| Thermal Conductivity of Melt | 0.16 | W/m/K | Internal methods |
| Supplemental Information | rating | Units | Test methodology |
| Effective Thermal Diffusivity | 0.0485 | cSt | Internal methods |
| injection | rating | Units | |
| Drying temperature | 80.0 to 100 | °C | |
| Drying time | 3 | hr | |
| Barrel rear temperature | 170 to 180 | °C | |
| Temperature in the middle of the barrel | 180 to 190 | °C | |
| The temperature of the front of the barrel | 180 to 190 | °C | |
| Nozzle temperature | 190 to 200 | °C | |
| Processing (melt) temperature | 180 to 200 | °C | |
| Mold temperature | 80.0 to 120 | °C | |
| Injection pressure | 60.0 to 120 | MPa | |
| Injection speed | Slow to medium | ||
| Pressure holding | 60.0 to 120 | MPa | |
| Back pressure | 0.00 to 0.500 | MPa | |
| Injection instructions | |||
| Manifold Temperature: 180 to 200°CZone 4 Temperature: 190 to 200°C |
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