Sinopec LLDPE R546U is a linear low density polyethylene (LLDPE) resin specifically developed for rotational molding applications. It is produced through the copolymerization of ethylene with alpha-olefins, resulting in a material that offers an excellent balance of processability and mechanical performance.

The resin is supplied in natural-colored pellets and is non-toxic, odorless, and environmentally friendly, making it suitable for a wide range of industrial and consumer applications.

Property

Value

Density

0.935 ± 0.003 g/cm³

Melt Flow Rate (MFR, 190°C/2.16kg)

5.0 ± 0.5 g/10 min

Tensile Strength at Yield

≥ 12 MPa

Elongation at Break

≥ 200% (Typical > 700%)

Impact Strength (23°C)

≥ 20 kJ/m²

Heat Deflection Temperature

Approx. 54–55°C

What Are The Main Advantages of Sinopec LLDPE R546U

  • Excellent Mechanical Properties. Sinopec R546U provides high tensile strength and excellent elongation at break, ensuring durability and flexibility in finished products. It also exhibits outstanding toughness and impact resistance, maintaining reliable performance even under low-temperature conditions.
  • Superior Environmental Resistance. The resin offers excellent Environmental Stress Crack Resistance (ESCR), making it suitable for demanding applications. It also demonstrates strong resistance to a wide range of chemicals, including acids, alkalis, and organic solvents.
  • Optimized Processing Performance. R546U features stable melt flow behavior tailored for rotational molding. It has good powder grinding performance, enabling uniform particle distribution, along with excellent mold release properties. These characteristics contribute to consistent wall thickness, low warpage, and high dimensional stability in finished products.
  • Thermal and Weather Resistance. The material maintains good thermal stability during prolonged heating cycles, which is essential for rotational molding processes. It is also suitable for outdoor applications due to its reliable resistance to ultraviolet (UV) exposure.
  • Safe and Eco-Friendly. LLDPE R546U is non-toxic and odorless, making it safe for general use. It complies with standard polyethylene safety requirements and aligns with environmental protection considerations.

Typical Applications

(1) Rotational Molded Products

  • Large water tanks and chemical storage tanks
  • Industrial containers (e.g., 20 m³ and 30 m³ tanks)

(2) Outdoor and Infrastructure Products

  • Road barriers and traffic safety equipment
  • Outdoor waste bins

(3) Toys and Recreational Equipment

  • Large playground equipment
  • Outdoor toys

(4) General Industrial and Consumer Products

  • Hollow plastic containers
  • Impact-resistant storage solutions

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