Polyoxymethylene, commonly known as POM, is a high-performance engineering thermoplastic that is widely used in various industries due to its excellent mechanical properties, low friction coefficient, and high dimensional stability POM is a lightweight and versatile material that offers a unique combination of properties, making it an ideal choice for applications that require strength, stiffness, and durability.
POM is a semi-crystalline polymer that belongs to the family of polyacetals It has a high melting point, ranging from 160 to 180 degrees Celsius, which makes it suitable for high-temperature applications POM is also resistant to many chemicals, oils, and solvents, making it a popular choice for automotive, electrical, and industrial applications.
One of the key properties of POM is its high mechanical strength and stiffness It has a tensile strength of up to 65 MPa and a flexural modulus of up to 2,500 MPa, making it stronger and stiffer than many other engineering plastics This high strength and stiffness make POM an ideal material for gears, bearings, and other high-load mechanical components.
Another important property of POM is its low friction coefficient POM has a low coefficient of friction, which means that it has excellent wear resistance and is self-lubricating This makes it an ideal material for applications that require smooth and quiet operation, such as in automotive fuel systems, conveyor belts, and medical devices.
POM also has excellent dimensional stability, meaning that it does not shrink or expand significantly with changes in temperature or humidity This makes it an ideal material for precision components that require tight tolerances and accurate dimensions POM is often used in applications that require high precision, such as in electrical connectors, valves, and switches.
One of the most common forms of POM is acetal copolymer, which is a copolymer of ethylene oxide and formaldehyde polyoxymethylene material. Acetal copolymer is available in several grades, each with different properties and characteristics For example, unfilled acetal copolymer has excellent strength and stiffness, while glass-filled acetal copolymer has enhanced mechanical properties and improved creep resistance.
POM is used in a wide range of industries and applications due to its versatile properties and excellent performance In the automotive industry, POM is used in fuel systems, cooling systems, door handles, and interior components Its high strength, stiffness, and low friction coefficient make it an ideal material for automotive applications that require durability and reliability.
In the electrical industry, POM is used in connectors, switches, and insulators due to its excellent dimensional stability and electrical insulation properties POM is also used in the production of electrical housings and enclosures due to its high mechanical strength and resistance to chemicals and solvents.
In the consumer goods industry, POM is used in various applications such as zippers, buckles, and handles due to its smooth surface finish and low friction coefficient POM is also used in the production of toys and sporting goods due to its high impact resistance and durability.
Overall, POM is a versatile and high-performance material that offers a unique combination of properties, making it an ideal choice for a wide range of applications across different industries Its high mechanical strength, stiffness, low friction coefficient, and dimensional stability make it a popular choice for applications that require durability, reliability, and precision As technology continues to advance, the demand for POM is expected to grow as more industries discover its benefits and applications.