HDPE Huajin Chemical HD5502S
HDPE Huajin Chemical HD5502S Resin
Material Introduction: HDPE Huajin Chemical HD5502S is a blow‑molding grade (hollow grade), especially suitable for small‑to‑medium hollow containers. High melt strength, good environmental‑stress‑cracking resistance and balanced mechanical properties support wide‑ranging applications.
Main Applications
Small blow‑molded hollow containers: oil drums below 5L, cosmetic bottles (lotion bottles, care‑product bottles), pharmaceutical bottles (comply with relevant regulations), liquid condiment bottles (soy‑sauce bottles, vinegar bottles).
Food packaging: blow‑molded containers for food and pharmaceutical packaging.
Other applications: sheets for further thermoforming into finished articles.
Performance Parameters
| Performance Category | Test Item | Value / Range | Unit |
|---|---|---|---|
| Basic Properties | Density | 0.954 | g/cm³ |
| Melt Flow Rate (MFR) | 0.2 (190°C, 2.16 kg) | g/10 min | |
| Mechanical Properties | Tensile Yield Strength (Premium grade) | ≥27 | MPa |
| Flexural Modulus | 800‑1050 | MPa | |
| Charpy Notched Impact Strength | 12 | kJ/m² | |
| Environmental Stress‑Cracking Resistance | ＞30 (F50, 50°C) | h | |
| Elongation at Break | ＞300 | % |
Blow‑molding Processing Parameters
| Processing Parameters | Recommended Range | Remarks |
|---|---|---|
| Barrel Temperature (Rear) | 160‑180℃ | Feeding zone, prevent material bridging |
| Barrel Temperature (Middle) | 180‑200℃ | Compression zone, preliminary melting |
| Barrel Temperature (Front) | 200‑220℃ | Metering zone, melt homogenization |
| Die‑head Temperature | 200‑210℃ | Control parison quality and verticality |
| Melt Temperature | 180‑220℃ | Ensure sufficient melt strength to avoid parison sagging |
| Mold Temperature | 20‑50℃ | Affect cooling rate and surface finish |
| Blow‑air Pressure | 0.4‑1.0 MPa | Adjust according to part size and complexity |
Disclaimer: All above data is for reference only.
