What are the criteria for PIM binder selection?

After a long period of exploration, it was found that the key factor of PIM was the selection of adhesive. Powderinjection molding (PIM) of the binder should at least meet the 5 conditions:

1 in molding temperature, the additive is usually a short polymer filler, has a lower viscosity;

2 in the heating process, to maintain the same shape of green polymer backbone;

3 small molecular weight, avoid residual stress and deformation, easy to combine with the surface of solid powder;

4 the surface of the solid powder can be ensured to have good wetting property with the auxiliary agent, so that it can be combined well and not easily separated;

5 the price is not expensive, environmental protection, low water absorption.