Sabic QR6731K Random Copolymer PP Resin

SABIC QR6731K is a high – clarity, high – rigidity polypropylene (PP) random copolymer with low processing temperature, produced by SABIC.

Physical Properties

  • Density: Tested per ASTM D790, the density is 0.905 g/cc (0.0327 lb/in³), representing the material’s mass per unit volume.
  • Melt Flow: As per ASTM D1238, the melt flow rate is 25 g/10 min under a 2.16 kg (4.76 lb) load at 230 °C (446 °F), indicating its flowability during processing.

Polymer Properties:

  1. Base Material: Polypropylene (PP)
  2. Key Features & Characteristics:
    • Exceptional Transparency and Clarity: This material offers a superior, crystal-clear appearance, which is crucial for applications where visual appeal and product visibility are key.
    • Low Stress Whitening: It is specifically formulated to resist stress whitening, meaning it maintains its transparent appearance even when bent or stressed. 
    • High Stiffness and Heat Resistance: The material provides a good balance of rigidity and heat resistance. It can withstand elevated temperatures, making it suitable for hot-fill and microwaveable applications.
    • Excellent Processability: With a medium melt flow rate, this grade is easy to process on standard thermoforming and extrusion equipment, allowing for the production of consistent, high-quality sheets and films.

Applications:

The combination of excellent transparency, low stress whitening, and good heat resistance makes SABIC QR6731K ideal for a wide range of clear, thermoformed, and extruded products.

  • Food Containers and Trays: Perfect for transparent food packaging that requires a clear, glossy look and the ability to withstand heat for hot-fill or microwaveable use.
  • Transparent Cups: Its clarity and resistance to stress whitening make it a great choice for clear drinking cups and lids.
  • Household Goods: Suitable for clear storage boxes and other consumer products where visibility and durability are desired.
  • Medical and Laboratory Equipment: Its clarity and heat resistance make it a good material for medical syringes, petri dishes, and other lab items.

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