Study of a Binder System for Ti-MIM: A Potential Low Temperature Backbone Polymer
Impurity control remains to be a challenge to titanium metal injection moulding (Ti-MIM). Much attention has been paid to polyethylene glycol (PEG) based binder systems due to the eco-friendly and water-soluble feature of PEG. In this study, a new easy-to-debind PEG/polypropylene carbonate (PPC)-based binder system (76% PEG+17% PPC+3% polymethyl methacrylate (PMMA)+2% stearic acid (SA)+2% polyvinyl acetate (PVAc)) was developed. The rheological properties of the feedstocks prepared with the binder system in different proportions were assessed. Debinding behaviours of the moulded samples and impurity contents of oxygen (O), carbon (C), and nitrogen (N) of the thermal debound specimens were investigated as well.
Huiping Tang, Ma Qian, Yong Liu, Peng Cao and Gang Chen
H. Z. Zhang et al., "Study of a Binder System for Ti-MIM: A Potential Low Temperature Backbone Polymer", Key Engineering Materials, Vol. 770, pp. 206-213, 2018