Characteristic:High strength and cohesive force, good abrasion resistance
Application: Double density sole system for common safety shoes and one-step forming casual shoes, outsole
Typical properties of PU pan>
| Name of products | Appearance | Viscoscity (mPa·s/40℃) | Density (g·cm-³/40℃) | Package (kg) |
| A-6170 | liqud | 1000-1400 | 1.01-1.02 | 18 |
| B-8280 | Yellowish Transparent liquid or waxy | 600-1000 | 1.08-1.2 | 20 |
Materials preheat
A-6170: preheated at 50-60℃ for 6-8℃ hours
B-8280: preheated at 50-60℃ for 8-12 hours
Typical processing parameters & Reaction parameter
| Items | A/B Materials Temperatures(℃) | Mix ratio A+C/B (By weight)
| Cream time (s) | End of Rise Time (s) | ||
| Parameter | 40-45/40-45 | sole | mid-sole | sole | mid-sole | 40-50 |
| 100/69-71 | 100/77-79 | 6-8 | 6-7 | |||
| Items | Free Rise Foam Density (g/cm³) | Mold Temperature (℃) | Demold Time (min) | |
| parameter | sole | mid-sole | 45-55 | 3-5 |
| 0.60-1.0 | 0.23-0.27 | |||
The adding content of C-2 should be 300g±10g/18kg
The adding content of water and hardener should be changed according to the reality
Sole: H2O 0-30g/18kg Hardener 0-400g/18kg
Mid-sole: H2O 50-55g/18kg Hardener 0-600g/18kg
sical properties
| Items | Molded Density (g/cm³)
| Hardness (Shore A)
| Tensile strength (Mpa)
|
Elongation (%)
| ||||
sical properties
| sole | mid-sole | sole | mid-sole | sole | mid-sole | sole | mid-sole |
| 0.9-1.1 | 0.45-0.55 | 62-72 | 45-55 | 8.0-11.0 | 3.9-7.9 | 550-750 | 520-690 | |
| Items | Tear strength (kN/m) | Flexing resistance | DIN abrasion (mm³) | Peel strength between sole and mid-sole (kN/m) | ||
| sical properties | sole | mid-sole | 100000 times no crack | sole | mid-sole | ≥3.5 |
| 25-40 | 16-27 | 60-100 | ---- | |||
Demold time may be prolonged with the increse of sole thickness
These sical data are acquired by testing a sample of 6mm thick
Data listed above are just for reference.The data are subjected to practical production.If other requests for sical properties,please us.
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