Plastic Material-POM
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Introduction of POM
Polyoxymethylene (POM), commonly known as acetal or Delrin, is a high-performance engineering thermoplastic with a wide range of applications due to its exceptional mechanical properties and versatile processing capabilities. POM is characterized by its low coefficient of friction, high stiffness, excellent dimensional stability, and resistance to wear and creep. It is often chosen for applications that require precision, durability, and resistance to moisture and chemicals.
POM Information
Process: Injection Molding, Insert Molding, Overmolding, CNC Machining, 3D Printing
Colors: custom-colored
Tolerance:+/-0.1mm
Price: High-range of plastic material costs
Application: gears, bearings, sliding components, automotive parts, medical devices, and consumer goods, etc.
Recommended Wall Thickness: 1mm-3mm
POM Properties
POM is synthesized from formaldehyde through a polymerization process, resulting in a linear polymer structure with repeating -CH2O- units. This structure contributes to its remarkable properties. Here are the general POM properties.
Property | Value |
Density (g/cm³) | 1.41- 1.43 |
Shrinkage Rate (%) | 1.5 – 3.0 |
Pockwell Hardness | R118 – R122 |
Tensile Strength at Yield (MPa) | 55- 75 |
Elongation at Break (%) | 20- 50 |
Flexural Modulus (GPa) | 2.5- 3 |
Flexural Strength (MPa) | 70- 100 |
Drying Temperature (°C) | 80 – 90 |
Drying Time (hrs) | 2 – 4 |
Melt Temperature (°C) | 165- 175 |
Mold Temperature (°C) | 80– 100 |
FAQ About POM Plastic Material
Additives like lubricants, reinforcing agents (such as glass fibers), UV stabilizers, and flame retardants can be incorporated into POM formulations to enhance specific properties.
POM can be used for food contact applications, especially when compliant grades are chosen. Food-safe POM formulations are available, meeting regulatory requirements.
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