LyondellBasell Pro-Fax 6331

LyondellBasell's Pro-Fax 6331 is a general-purpose homopolymer polypropylene (PP) resin known for its consistent processability and robust performance in a variety of applications. Supplied in pellet form, this versatile thermoplastic material is a staple in the plastics industry, particularly favored for injection molding and extrusion processes.

High-Level Overview

Pro-Fax 6331 is characterized by its good flow characteristics, high stiffness, and excellent dimensional stability. These attributes make it a reliable choice for manufacturers seeking efficient production cycles and durable end-products. The resin is formulated to provide a balance of physical and mechanical properties, making it suitable for a wide range of consumer and industrial goods.

Key Material Properties

The following data represents typical values and should not be considered as binding specifications.

Property Value (Metric) Value (Imperial) Test Method
Physical
Density 0.90 g/cm³ - ASTM D792
Melt Flow Rate (230°C/2.16 kg) 12 g/10 min - ASTM D1238
Mechanical
Tensile Strength at Yield 34.0 MPa 4930 psi ASTM D638
Tensile Elongation at Yield 11% 11% ASTM D638
Flexural Modulus (1% Secant) 1450 MPa 210000 psi ASTM D790A
Impact
Notched Izod Impact (23°C) 32 J/m 0.6 ft-lb/in ASTM D256A
Thermal
Deflection Temperature (0.45 MPa) 93.0°C 199°F ASTM D648
Vicat Softening Point 151°C 304°F ASTM D1525

Processing and Applications

The primary processing method for Pro-Fax 6331 is injection molding, where its consistent melt flow and dimensional stability are highly advantageous. The material's characteristics allow for the production of intricate and detailed parts with good surface finish.

In extrusion applications, this homopolymer is used to produce monofilaments, multifilaments, and cast films. Its high rigidity and strength lend themselves well to the creation of fibers, tapes, and strapping.

Key Applications

  • Caps and Closures: The material's stiffness and dimensional stability ensure a secure and reliable seal for a variety of packaging.
  • Housewares and Consumer Goods: From food containers to small appliances, the resin's balance of properties makes it a popular choice for everyday items.
  • Industrial Components: Its mechanical strength and resistance to chemicals make it suitable for various industrial parts.
  • Fibers and Filaments: The grade's extrusion performance allows for the production of strong and consistent fibers for use in textiles, ropes, and other woven and non-woven products.
  • Film: Pro-Fax 6331 can be processed into cast films for packaging and other applications where clarity and barrier properties are desired.

Regulatory Compliance

A significant advantage of Pro-Fax 6331 is its compliance with stringent regulatory standards. The base resin meets the requirements of the U.S. Food and Drug Administration (FDA) as outlined in the Code of Federal Regulations in 21 CFR 177.1520. This certification makes it suitable for food contact applications, a critical consideration for packaging and houseware manufacturers.


Handling and Safety

As with all thermoplastic materials, proper handling and processing procedures are essential. It is recommended to process Pro-Fax 6331 in well-ventilated areas. The material should be stored in a cool, dry place away from direct sunlight and sources of ignition. For detailed safety information, users should consult the official Safety Data Sheet (SDS) provided by LyondellBasell.

In summary, LyondellBasell's Pro-Fax 6331 stands as a versatile and reliable polypropylene homopolymer. Its well-rounded property profile, ease of processing, and regulatory compliance make it a preferred material for a multitude of applications across various industries.

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