SABIC 318CNJ LLDPE Resin

Physical Properties

• Density: Determined in accordance with ASTM D1505, the material’s density is measured as 0.918 grams per cubic centimeter(0.0332 lb/in³). 
• Melt Flow: As per ASTM D1238 standards, the melt flow rate is 2.8 grams per 10 minutes under a load of 2.16 kilograms (4.76 lb) at 190 degrees Celsius (374°F).

Polymer Properties:

• Base Material: Linear Low Density Polyethylene
• Modification Features:
  
  • TNPP – free with an optimized antioxidant formulation.
  • Devoid of slip and antiblock additives.
  • Requires additional substances for meeting ageing and jacketing needs.

Applications:

• Wire and Cable Insulation and Jacketing
  SABIC® LLDPE 318CNJ is predominantly used in the wire and cable industry for insulation and jacketing due to its excellent electrical, mechanical, and thermal properties. 
  • Specific Use Cases
    • Power Cables: Used as an insulation layer in low- and medium-voltage power cables, where its high dielectric strength and flexibility prevent electrical breakdowns and facilitate installation in confined spaces.
    • Communication Cables: Applied in jacketing for coaxial and fiber optic cables, providing mechanical protection and environmental resistance while maintaining flexibility for routing.
    • Control and Instrumentation Cables: Utilized for insulation and jacketing, offering durability and resistance to chemical and thermal stressors in industrial settings.
  • Processing Considerations
    SABIC® LLDPE 318CNJ is processed via extrusion, with recommended conditions ensuring optimal performance:
    • Melt Temperature: Typically ranges between 180–220°C, depending on equipment and cable specifications.
    • Additive Incorporation: Compounding with Carbon Black (for UV resistance) or Cu-inhibitors is performed during processing to tailor the material for specific ageing and environmental requirements.
• Potential Non-Wire Uses
  While primarily designed for wire and cable, the properties of SABIC® LLDPE 318CNJ suggest potential suitability for other applications, provided appropriate modifications are made:
  • • Films and Coatings: With additional stabilizers, it could be used in agricultural films or protective coatings, leveraging its tensile strength and flexibility. 
    • Injection-Molded Parts: Its mechanical properties may support low-stress molded components, though this is less common due to its wire and cable focus.