Water-based binder solutions for use in additive manufacturing processes

A green body part comprising:

• a plurality of layers, at least one layer formed from a powder bound by a water-based binder solution comprising from greater than or equal to 0.1 wt % to less than or equal to 5 wt % of a non-aqueous solvent having a boiling point of greater than 100° C. and below 175° C. and a thermoplastic binder, wherein:
• the thermoplastic binder comprises:
• a first polymer strand including a first functional group and having a weight average molecular weight (Mw) of from greater than or equal to 5,000 g/mol to less than or equal to 15,000 g/mol;
• a second polymer strand including a second functional group and having a weight average molecular weight (Mw) of from greater than or equal to 10,000 g/mol to less than or equal to 50,000 g/mol;
• and
• a third polymer strand including a third functional group and having a weight average molecular weight (Mw) of from greater than or equal to 1,000 g/mol to less than or equal to 5,000 g/mol;
• the first functional group differs from each of the second functional group and the third functional group;
• the second functional group differs from the third functional group;
• and
• the first polymer strand is non-covalently coupled to the at least one of the second polymer strand via the first and second functional groups and the third polymer strand via the first and third functional groups.