SINOPEC HD5502

SINOPEC HD5502

SINOPEC HD5502 is a high-density polyethylene (HDPE) resin manufactured by Zhongke (Guangdong) Refining and Chemical Co., Ltd[cite: 13]. Characterized by an optimal balance of density, stiffness, environmental stress cracking resistance (ESCR), and mechanical strength, HD5502 is widely utilized in blow molding processes for producing small-to-medium-sized hollow containers, bottles, and industrial chemical packaging[cite: 13].

Key Features

• High Density (954.7 kg/m³) ensuring superior rigidity, strength, and wall stability[cite: 13].
• Good Environmental Stress Cracking Resistance (ESCR $F_{50} > 25\text{ h}$)[cite: 13].
• Excellent Mechanical Performance with high tensile strength at yield (28.5 MPa) and high elongation at break (870%)[cite: 13].
• Low Melt Flow Rate (MFR ~0.33 g/10min) offering optimal parison melt strength during blow molding[cite: 13].
• Low Ash Content (0.043%) ensuring resin purity and clean processing[cite: 13].

Technical Specifications

• Product Name: High-density Polyethylene Resin (HDPE)[cite: 13]
• Grade / Brand: HD5502[cite: 13]
• Manufacturer: Zhongke (Guangdong) Refining and Chemical Co., Ltd. / SINOPEC[cite: 13]
• Standard Implementation: Q/SH 4400 3008-2025[cite: 13]
• Melt Mass Flow Rate (MFR) (190°C / 2.16 kg): 0.33 g/10min (Specification: 0.25–0.35 g/10min)[cite: 13]
• Density (23°C): 954.7 kg/m³ (Specification: 953.5–956.5 kg/m³)[cite: 13]
• Tensile Yield Strength (ASTM D638, Type IV): 28.5 MPa (Specification: ≥ 25 MPa)[cite: 13]
• Tensile Fracture Elongation (ASTM D638, Type IV): 870% (Specification: ≥ 750%)[cite: 13]
• Environmental Stress Cracking Resistance (ESCR $F_{50}$): > 25 h (GB/T 1842)[cite: 13]
• Ash Content (Mass Fraction): 0.043%[cite: 13]
• Granule Appearance: Clean granules free of foreign pigments[cite: 13]

Typical Applications

• Blow molded small and medium hollow containers (household chemicals, detergent bottles, and personal care packaging)[cite: 13]
• Industrial containers and lube oil bottles requiring good ESCR[cite: 13]
• Extrusion profile products and technical plastic parts[cite: 13]

Note: The technical data presented above represent actual laboratory test results reported in the manufacturer's quality certificate[cite: 13].