CELANESE HOSTAFORM C 9021 SW Modified POM Resin

Physical Properties

• Density: Measured per ISO 1183, the material’s density is 1.42 g/cc (0.0513 lb/in³), defining its mass per unit volume for property assessment.
• Water Absorption at Saturation: As per ISO 62, the material absorbs 1.2% water at saturation, indicating moderate moisture retention when fully immersed.
• Linear Mold Shrinkage, Flow: By ISO 294-4, flow-direction shrinkage is 0.020 cm/cm (0.020 in/in), crucial for ensuring dimensional stability in molded components.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4, transverse shrinkage is 0.018 cm/cm (0.018 in/in), highlighting directional differences in part contraction during cooling.
• Melt Flow: Under ISO 1133 at 190°C/2.16 kg, the melt flow rate is 6.5 g/10 min [cm³/10min], reflecting processability for injection molding applications.

Polymer Properties:

1. Base Material: Polyoxymethylene (POM)
2. Modification Features:
   
   • Exhibits excellent chemical resistance against common solvents and chemicals.
   • Offers high wear resistance for long – lasting performance in moving parts.
   • Has good dimensional stability under varying temperatures.
   • Low coefficient of friction for smooth operation in sliding applications.
   • Good electrical insulating properties suitable for electrical components.

Applications:

• Sliding and Bearing Systems:
  • Description: This material excels in components designed for linear or rotational motion, often serving as a lightweight and quiet alternative to metal parts by eliminating the need for grease or oil.
  • Benefits: The PTFE modification provides inherent self-lubrication, leading to significantly reduced friction and extended service life. This is particularly valuable in “dry running” conditions.
  • Examples: Plain bearings, sliding guides, low-load gears, conveyor rollers, and intricate sliding mechanisms in consumer appliances, furniture, and window/door systems.
• Automotive Industry:
  • Description: Utilized in various automotive components that demand smooth, quiet operation, and high durability under diverse environmental conditions.
  • Benefits: Its superior wear resistance and excellent chemical resistance to typical automotive fluids (e.g., fuels, oils) make it ideal for demanding under-the-hood and interior applications.
  • Examples: Components within seat adjustment mechanisms, sunroof systems, power window guides, gearshift linkages, HVAC actuators, and mirror systems .
• Precision Engineering:
  • Description: Employed in the manufacture of intricate parts that require tight tolerances and consistent performance, even under moderate mechanical loads.
  • Benefits: The material’s good dimensional stability, high stiffness, and excellent processability enable the production of highly precise molded parts.
  • Examples: Small gears, cams, levers, and other moving parts in printers, cameras, medical devices, and other sensitive instruments.
• Consumer Goods and Appliances:
  • Description: Found in household appliances and various consumer products where durability, smooth tactile feel, and quiet operation are essential for user satisfaction.
  • Benefits: Its inherent lubricity reduces operational noise and enhances the overall user experience by ensuring effortless motion.
  • Examples: Internal components in washing machines, dishwashers, coffee makers, food processors, and other small appliances that feature moving parts or require reliable, low-friction operation.
• Other Specialized Applications:
  • Sports Equipment: Components in ski bindings, fishing reels, and bicycle parts where smooth action, durability, and resistance to environmental factors are critical.
  • Fluid Handling Systems: Parts within pumps, valves, and metering devices that require both good chemical resistance and low friction for efficient operation and extended life.