Application | Safety shoe sole |
polyol isocyanate | Polyurethane raw materials |
A/B Materials Temperatures (℃) | 40~45/40~45 |
Mold Temperature (℃) | 45~55 |
Demold Time (min)) | 3~5 |
(room temperature) Flexing resistance | 100,000 times no crack |
Typical processing parameters & Reaction parameter | ||||||||
Items | A/B Materials Temperatures | A+C/B Mix ratio | Cream Time | 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 | Mold Temperature | Demold Time | / | ||||
Parameter | Sole | mid-sole | 45~55 | 3~5 | ||||
0.47~0.50 | 0.23~0.26 | |||||||
The adding content of C-2 should be 300g±20g/18kg | ||||||||
The adding content of water and hardener should be changed according to the reality | ||||||||
sole: H2O 20~30g/18kg Hardener 0~400g/18kg | ||||||||
mid-sole: H2O 50~55g/18kg Hardener 0~600g/18kg | ||||||||
Physical properties | ||||||||
Items | Molded Density (g/cm3) | Hardness | Tensile strength(MPa) | Elongation (%) | ||||
Physical 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 | (room temperature) | Williams abrasion | Adhesion between sole and mid-sole | ||||
Flexing resistance | ||||||||
(Break length,0mm) | ||||||||
Physical properties | sole | mid-sole | 100,000 times no crack | sole | mid-sole | 40~60 | ||
25~40 | 16~27 | 60~100 | - | |||||
Demold time may be prolonged with the increase of sole thickness | ||||||||
These physical data are acquired by testing a sample of 6mm thick. | ||||||||
Data listed above are just for reference. The detail data are subjected to practical production. If other requests for physical properties, please contact us. |