A new solid polymer solution (SPS) binder for powder injection moulding (PIM)

Development of poly(2-ethyl-2-oxaline) based water-soluble binder for injection molding of stainless steel powder

“…357 m g torque value is obtained at 62.5 vol.% solid loading. This torque is in line with the other studies [3][4][5]. These results indicate that low viscosity of the major binder component contributed to the low mixing torques at the low solids loadings.…”

“…Conventional wax-based binders have been widely used in the powder injection molding. But in these binders, in order to extract the wax, one must employ organic solvents such as hexane or heptane, which cause toxicological and environmental problems [1,5]. Thus, it is needed to develop new binder system including a low viscous material that is extracted by an environmentally favored solvent such as water [5,6].…”

Effect of PEG molecular weight on rheological properties of Ti-MIM feedstocks and water debinding behaviour

“…Among these, polyethylene glycol (PEG) is the most extensively reported polymer due to its non-toxicity, commercial availability and solubility in water [7][8][9][10]. It is a crystalline polymer (chemical structure: HO\[CH 2 \CH 2 \O] n \H) with an open helical structure, which is responsible for its low melting point and solubility in water.…”

Net-shape production of graphite parts via powder injection moulding of carbon mesophase

“…The use of water-soluble polymers as binder material for PIM is already applied for several ceramic and metal powders (Song et al, 2005;Lee and Jeung, 2001;Yang et al, 2003;Omar et al, 2001;Cao et al, 1992). Another approach uses a water-based binder system.…”