A. Analysis from the chemical structure: the main chain is carbon and oxygen atom alternating structure, which has a certain polarity and can fully contact with the surface of metal powder; the side chain is hydrogen atom, which has little space hindrance. The main chain has strong regularity, so POM has high crystallinity, generally over 70%, low viscosity and the ability to maintain the green shape. These two characteristics can only be reconciled by crystallization.

B. Molecular weight analysis: POM has low degree of polymerization and is easy to depolymerize when heated. POM has small molecular weight and low viscosity, which ensures that as few binders as possible can meet the injection molding conditions. In addition, the smaller molecular weight makes it easy to remove from the blank and not easy to produce residual stress. POM has high crystallinity and good self-lubrication.

C. Finally, POM is a thermoplastic material, and the defective products can be recycled, which reduces the cost in another way.

Our Shandong No2 Machinery Company offten used this as binder. It is a high quality plastic.