Injection molded PVC material
Release time:2025-04-23
PVC Injection Molding Footwear Material Production Solution
1. Material Formulation Design
Our optimized PVC compound ensures excellent flexibility, durability, and processing performance for footwear applications:
PVC Resin: SG-3 or SG-5 grade for balanced rigidity and flexibility
Plasticizers: Primary DOP/DINP with secondary plasticizers for optimal softness (Shore A 55-90 adjustable)
Stabilizers: Advanced Ca-Zn systems for thermal stability and eco-compliance
Fillers: Surface-treated calcium carbonate (10-30% load) for cost optimization
Foaming Agents (optional): For lightweight expanded soles
2. Production Process
Compounding Stage
High-speed mixing at 100-110°C followed by cooling to <45°C
Twin-screw extrusion with precise temperature zones (150-175°C)
Strand pelletizing with underwater cutting system
Injection Molding
Recommended machine: Reciprocating screw type (L/D ratio 18:1-22:1)
Processing parameters:
Barrel temperature: 150-180°C (zone-controlled)
Mold temperature: 30-50°C
Injection pressure: 80-120 MPa
Cooling time: 20-40 seconds (varies by thickness)
3. Quality Features
Excellent flow properties (MFI 8-15g/10min @190°C)
Consistent density (1.15-1.35 g/cm³, adjustable for foamed versions)
Superior abrasion resistance (<150mm³ loss by DIN 53516)
Good low-temperature flexibility (-10°C to -20°C)
4. Customization Options
Adjustable hardness (Shore A 55-90)
Various colors and surface effects (glossy/matte)
Anti-slip and anti-static versions available
REACH/RoHS compliant formulations
5. Technical Support
Compound development assistance
Processing parameter optimization
Mold flow analysis available
On-site troubleshooting
(All specifications can be tailored to specific customer requirements and applications)
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