Overview
Ticona POM, or Polyoxymethylene, is a high-performance engineering thermoplastic produced by Celanese under the Ticona brand. It is renowned for its exceptional mechanical properties, including high stiffness, low friction, and excellent dimensional stability. POM is available in two primary grades: homopolymer (POM-H) and copolymer (POM-C), each tailored for specific applications. Its versatility makes it a preferred material in industries requiring precision and durability, such as automotive, electronics, and industrial manufacturing. POM is synthesized through the polymerization of formaldehyde, resulting in a semi-crystalline structure that contributes to its strength and resistance to wear. The material's ability to withstand prolonged stress and harsh environments has cemented its role in critical components like gears, bearings, and fasteners. Ticona POM is particularly valued for its balance of performance and processability, making it a staple in injection molding and extrusion applications.
Physical and Chemical Properties
Ticona POM exhibits a unique combination of physical and chemical properties that make it suitable for demanding applications. Its high tensile strength (up to 70 MPa) and rigidity ensure it can endure significant mechanical stress without deformation. The material's low coefficient of friction (0.1-0.3) and excellent wear resistance minimize energy loss and prolong component lifespan, even in high-speed or high-load scenarios. Chemically, POM is resistant to hydrocarbons, alcohols, and weak acids, though it degrades in strong acids and bases. Its moisture absorption rate is minimal (0.2-0.3%), ensuring stability in humid environments. However, prolonged exposure to UV radiation can cause surface degradation, necessitating additives or coatings for outdoor use. POM's thermal stability is moderate, with a continuous service temperature range of -40°C to 100°C, making it unsuitable for extreme heat applications.
Main Applications
Ticona POM is extensively used in the automotive industry for components like fuel system parts, door handles, and seatbelt mechanisms, where its durability and low friction are critical. In electronics, it serves in connectors, insulators, and housings due to its electrical insulation properties and precision moldability. Industrial applications include gears, bearings, and conveyor belts, where its wear resistance reduces maintenance costs. The medical sector also utilizes POM for surgical instruments and drug delivery devices, leveraging its biocompatibility (in specific grades) and sterilizability. Consumer goods, such as zippers, kitchen utensils, and toy parts, benefit from POM's smooth surface and colorability. Its versatility across these sectors underscores its importance as a material that combines performance with cost-effectiveness.
Safety and Storage
Handling Ticona POM requires adherence to safety protocols to mitigate risks. Inhalation of dust generated during machining can irritate the respiratory tract, necessitating proper ventilation and PPE like masks and goggles. Although POM is generally stable, overheating during processing (above 200°C) can release formaldehyde gas, requiring fume extraction systems. Storage recommendations include keeping POM in sealed containers to prevent moisture absorption, which can affect processing quality. The material should be stored away from oxidizing agents and strong acids to avoid chemical degradation. For long-term storage, maintaining a temperature below 30°C and relative humidity under 50% is advised to preserve its mechanical properties.
B2B Procurement Guide
When procuring Ticona POM, B2B buyers should prioritize grade selection based on application requirements. POM-H offers higher mechanical strength and thermal resistance, while POM-C provides better chemical stability and lower shrinkage. Certifications like FDA (for food contact) or RoHS (for electronics) may be necessary depending on the end use. Supplier evaluation should include assessing production capacity, quality control measures, and lead times. Bulk purchases (e.g., 1-ton orders) often attract discounts, but buyers should verify storage conditions to prevent material degradation. Requesting samples for testing mechanical properties (e.g., tensile strength, impact resistance) is recommended to ensure compliance with specifications. Additionally, consider regional suppliers to reduce logistics costs and carbon footprint.
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