CELANESE HOSTAFORM C 9021 AW Modified POM Resin

Physical Properties

• Density: Measured per ISO 1183, the material’s density is 1.38 g/cc (0.0499 lb/in³), specifying its mass per unit volume for characterization.
• Water Absorption at Saturation: As per ISO 62, the material retains 0.65% water at saturation, indicating low moisture uptake when fully immersed.
• Linear Mold Shrinkage, Flow: By ISO 294-4, flow-direction shrinkage is 0.021 cm/cm (0.021 in/in), critical for dimensional accuracy in injection molding.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4, transverse shrinkage is 0.019 cm/cm (0.019 in/in), highlighting directional variation in component contraction.
• Melt Flow: Under ISO 1133 at 190°C/2.16 kg, the melt flow rate is 8.0 g/10 min [cm³/10min], showing suitability for injection molding processes.

Polymer Properties:

• Base Material: Polyoxymethylene (POM) Copolymer
• Modification Features:
  
  • Special additives enhance tribological properties for smooth movement.
  • Shows remarkable resistance to solvents, fuels, and strong alkalis.
  • High thermal and oxidative resistance for long – term stability.
  • Low friction coefficient reduces energy loss and wear.
  • Good hydrolysis resistance maintains integrity in humid conditions.

Applications:

• Automotive Engineering
  Hostaform® C 9021 AW is widely used in automotive components due to its durability, chemical resistance, and low-friction properties. Specific applications include:
  • Window Lifter Mechanisms: The material’s low wear and friction properties make it ideal for sliding parts in window lifter systems, ensuring smooth operation and long-term reliability.
  • Fuel System Components: Its resistance to fuels and solvents allows it to be used in fuel system parts, such as pump housings and valve components, where chemical exposure is common.
  • Interior and Exterior Sliding Parts: Used in mechanisms like seat adjusters, sunroof tracks, and door lock components, where low friction and wear resistance are critical.
• Precision Engineering
  The material’s high rigidity, toughness, and dimensional stability make it suitable for precision-engineered components in various industries:
  • Gears and Bearings: Its low coefficient of friction and wear resistance make it an excellent choice for small gears, bushings, and bearings in precision machinery.
  • Conveyor System Components: Used in rollers, guides, and other sliding parts in conveyor systems, where durability and low maintenance are essential.
  • Fasteners and Clips: The material’s resilience and strength support its use in snap-fit connectors and clips requiring repeated engagement.
• Electrical and Electronic Industry
  Hostaform® C 9021 AW’s electrical insulating properties, combined with its mechanical strength and low moisture absorption, make it suitable for:
  • Connectors and Housings: Used in electrical connectors and component housings that require dimensional stability and resistance to environmental stress.
  • Switch and Relay Components: Its wear resistance and toughness are ideal for moving parts in switches and relays, ensuring consistent performance over time.
• Domestic Appliances
  The material’s aesthetic finish, chemical resistance, and durability make it suitable for household appliances:
  • Washing Machine Components: Used in parts like pump housings and agitator mechanisms, where resistance to water, detergents, and mechanical stress is crucial.
  • Kitchen Appliance Parts: Found in blenders, food processors, and coffee makers for components like gears and sliders, benefiting from its low friction and wear properties.
  • Vacuum Cleaner Parts: Employed in sliding mechanisms and structural components, offering durability and resistance to wear.