CELANESE HOSTAFORM C 9021 K Modified POM Resin

Physical Properties

• Density: Measured according to ISO 1183, the material’s density is 1.44 g/cc (0.0520 lb/in³), indicating its mass per unit volume for basic characterization.
• Density of Compound: The compound density, unspecified for standard, is 1.23 g/cc (0.0444 lb/in³), applicable to component-specific material evaluations.
• Water Absorption at Saturation: As per ISO 62, the material retains 0.65% water at saturation, showing low moisture uptake under fully immersed conditions.
• 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 parts.
• Linear Mold Shrinkage, Transverse: Per ISO 294-4, transverse shrinkage is 0.018 cm/cm (0.018 in/in), showing directional differences in component contraction.
• Melt Flow: Under ISO 1133 at 190°C/2.16 kg, the melt flow rate is 7.5 g/10 min [cm³/10min], indicating processability for injection molding operations.

Polymer Properties:

• Base Material: Polyoxymethylene (POM) Copolymer
• Modification Features:
  
  • Boasts high rigidity, providing structural stability in applications.
  • Exhibits remarkable hardness, resisting abrasion and wear.
  • Offers good toughness, capable of withstanding impacts.
  • Has excellent chemical resistance to solvents, fuel, and strong alkalis.
  • Demonstrates high resistance to thermal and oxidative degradation.
  • Shows good hydrolysis resistance, maintaining integrity in humid conditions.

Applications:

• Automotive Engineering
  Hostaform® C 9021 K is widely used in automotive applications due to its durability, wear resistance, and ability to withstand harsh chemical environments like fuels and lubricants. Specific applications include:
  • Sliding and Wear Components: Used in gears, bearings, and bushings for unlubricated or minimally lubricated systems, such as window regulators, seat adjusters, and door lock mechanisms. T
  • Fuel System Components: Its resistance to fuels and solvents makes it suitable for fuel pump housings, fuel line connectors, and valve components.
  • Interior and Exterior Parts: Employed in clips, fasteners, and structural components that require high rigidity and resistance to environmental stress cracking.
  • Under-the-Hood Applications: Used in parts exposed to high temperatures and oxidative conditions, such as air intake manifolds and throttle body components.
• Precision Engineering
  The material’s excellent dimensional stability and mechanical strength make it a preferred choice for precision engineering applications:
  • Gears and Bearings: Ideal for small, high-precision gears and bearings in machinery, where low friction and wear are critical.
  • Conveyor Systems: Used in rollers, guides, and chain links due to its low moisture absorption and wear resistance, ensuring consistent performance in dynamic environments.
  • Tool Components: Applied in components like handles or grips for tools, where toughness and chemical resistance enhance durability.
• Electrical and Electronics Industry
  Hostaform® C 9021 K’s electrical insulating properties and UL certifications make it suitable for electrical and electronic applications:
  • Connectors and Housings: Used in electrical connectors, switch housings, and terminal blocks, where its high rigidity and thermal stability ensure reliable performance.
  • Insulating Components: Employed in parts requiring resistance to electrical arcing and thermal degradation, such as insulating sleeves and cable management components.
• Domestic Appliances
  The material’s combination of aesthetic qualities, chemical resistance, and mechanical performance makes it ideal for household appliances:
  • Washing Machine Components: Used in pump housings, agitator parts, and valve components due to its resistance to hydrolysis and detergents.
  • Kitchen Appliances: Applied in parts like coffee machine gears, blender components, and food processor fittings, where its chemical resistance and low wear ensure longevity.
  • Vacuum Cleaner Parts: Utilized in sliding components and structural parts that require durability and resistance to wear under frequent use.
• Industrial Applications
  Hostaform® C 9021 K is used in various industrial settings where robust performance is needed:
  • Pumps and Valves: Employed in pump impellers, valve seats, and seals, leveraging its resistance to chemicals, wear, and creep.
  • Conveyor and Material Handling Systems: Used in wear strips, guide rails, and sprockets, benefiting from its low friction and high toughness.
  • Plumbing Systems: Suitable for fittings and connectors exposed to water and chemicals, thanks to its hydrolysis resistance and low moisture absorption.
• Consumer Goods
  The material complies with RoHS, PFOS, PFOA, and recommendation XXXIII for consumer goods by BgVV, making it suitable for applications in contact with consumers:
  • Sporting Goods: Used in components like ski bindings, rollerblade frames, and fishing reel parts, where its toughness and wear resistance are critical.
  • Furniture Components: Applied in hinges, sliders, and adjustment mechanisms, benefiting from its durability and low friction.
  • Personal Care Devices: Found in electric shaver components and toothbrush parts, where chemical resistance and smooth operation are essential.