Samples | Concentration ratios (pphr) | ||||
SBR | Stearic acid | ZnO | PbO | Pb(NO3)2 | |
Control | 100 | 1 | 5 | - | - |
PbO-30 | 100 | 1 | 5 | 30 | - |
PbO-50 | 100 | 1 | 5 | 50 | - |
PbO-70 | 100 | 1 | 5 | 70 | - |
Pb(NO3)2-30 | 100 | 1 | 5 | - | 30 |
Pb(NO3)2-50 | 100 | 1 | 5 | - | 50 |
Pb(NO3)2-70 | 100 | 1 | 5 | - | 70 |