Effects of Polyvinyl alcohol Polymer Additive on the Properties of Slurry for Ceramic Shell Mold

摘要

The effects of the PVA polymer additive on the basic and rheological properties of the primary and backup slurries have been studied. Meanwhile, the properties of the no-PVA polymer added slurry have also been studied and compared. Experimental results showed as follows; (1) the time required to reach the slurry stability were reduced; (2) the slurry pH values were lowered; (3) the life of slurry were extended; (4) the slurry water content remained stable.