HDPE
The Premier Choice for
Infrastructure in the Plastics World
Century-long Durability, Zero-Cost Maintenance — HDPE, The Eternal Choice for Infrastructure.
Durable &
Anti-Corrosive
100-Year
Service Life
Green
Recycling
Core Material Advantages
High Toughness
Extremely high impact strength, suitable for pipeline construction in seismic belts and geologically unstable areas.
Corrosion Resistance
Resistant to corrosion from acids, alkalis, and salts; the preferred material for chemical transport and sewage systems.
Low Absorption
Extremely low water absorption, maintaining long-term electrical insulation and dimensional stability while inhibiting bacterial growth.
High Cost-Performance
Lightweight and efficient with low construction costs. Lifecycle maintenance costs are nearly zero.
HDPE Properties and Key Characteristics
| Performance Dimension | Standard Performance |
|---|---|
| Density | 0.94–0.97 g/cm³ (Lighter than water) |
| Tensile Strength | 22–35 MPa (Dry state) |
| Elongation at Break | 500–1000% (Ultra-high toughness) |
| Temperature Resistance | Continuous -50°C to 80–100°C (Softening point 120–130°C) |
| Chemical Resistance | Resistant to acids, bases, salts, oils, and solvents (<60°C) |
| Water Absorption | <0.01% (Completely waterproof) |
| Weather Resistance | Requires UV stabilizers (Naturally prone to aging) |
| Electrical Insulation | Dielectric strength >30 kV/mm |
| Flame Retardancy | General (Requires flame retardant modification) |
| Pros | Cons |
|---|---|
| High Toughness & Strength (No breaking) | Poor Heat Resistance (Softens >80°C) |
| Waterproof & Chemical Resistant | UV Aging (Requires UV stabilizers) |
| Lowest Cost (<1 USD/kg) | Poor Flame Retardancy (Needs modification) |
| 100% Recyclable | High Creep (Deforms under long-term load) |
| Excellent Processability (Blow, Inject, Extrude) | Low Surface Hardness (Prone to scratching) |
| Selection Scenario | Core Value |
|---|---|
| Pipeline Infrastructure | 100-Year Lifespan + Zero Maintenance |
| Packaging Containers | Lightweight + Recyclable + Food Grade |
| Agricultural Water Saving | Drip Irrigation Tape Life >20 Years |
| Cable Protection | Corrosion Resistance + Insulation |
| Cost Control | The King of Cost-Performance |
| Summary: "HDPE is the invisible cornerstone of modern civilization—unseen, but everywhere!" | |
| Common Processing Method | Typical Products |
|---|---|
| Blow Molding | Bottles, Drums, Fuel Tanks |
| Extrusion | Pipes, Sheets, Geomembranes |
| Injection Molding | Pallets, Crates, Caps |
| Rotational Molding | Large Water Tanks, Storage Tanks |
| Thermoforming | Trays, Dividers |
| Popular Modification | Modification Effect |
| UV Resistant Modification | Outdoor Life >10 Years |
| Flame Retardant HDPE | UL94 V-0, Cable Jacketing |
| Reinforced HDPE (GF/CF) | Strength Increase 2-3x, Enhanced Rigidity |
| Foamed HDPE | Lightweight, Sound & Heat Insulation |
| Anti-static / Conductive | Surface Resistance <10⁶Ω |
| Medical Grade HDPE | USP Class VI Compliant |
Process Panorama
Extrusion
High-speed production for massive pipe networks.
Injection
Precision parts for valves and connections.
Blow
Lightweight, durable packaging solutions.
Rotational
One-piece construction for huge storage tanks.
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