1. The primary minimum indicates that the aggregated state is of the lowest-energy condition and this is where we would expect the particles to reside .
2. The primary maximum acts as an activation barrier that must be exceeded for aggregation to occur. As two particles come closer, they must collide with sufficient energy to overcome the barrier provided by primary maximum.
3. The secondary minimum could be seen as a flocculated state but the particles still have to cross the energy barrier to come into close contact at the minimum energy state.