1 Properties: medium hardness,middle-high density.
2 Application in producing for semi-cold-resistant soles.
3 Properties of PU resins:
Name of Articles | Apperance | Viscosity(pa.s/40ºC) | Density(g.cm³/40ºC) |
A-8065 | Liquid or waxy | 1000-1400 | 1.16-1.20 |
B-8221 | Transparency without any impurity | 200-500 | 1.19-1.21 |
4 Catalysts and auxiliary agents.
* Addition of water depends on adjusting of product's density and types,generally,it is 35-55g/barrel.
* Generally,for catalysts,its addition is 350+-20g/18kg,but urually depends on mould cavity and demoulding time..
5 Moulding conditions and material parameters
Reactivity | Technical parameters | Test items | material parameters |
Proportion for reference(P+C/1) | 100:84-87 | Finished density(g/cm³) | 0.45-0.60 |
Material temperature(ºC) | A material:40-50 B material:40-50 | Hardness(shore C) | 60-70 |
Cream time(S) | 4-7 | Tensile strength(Mpa) | 6-8(Mpa) |
Foamed time | 16-22 | Tear strength(KN/m) | 35-45(KN/m) |
Free foaming density(g/cm³) | 0.22-0.32 | Fold-resistant(D1052 ASTM standard) | Slotless beyound 5million times |
Demould time(min) | 2-4 | Abrasion resistance(%) | >=30 |
Metal grinding temperature(ºC) | 40-50 | Elongation(%) | 350-470 |