The invention discloses a
polyvinyl alcohol water-soluble 3D (Three-dimensional) printing support consumable item and a preparation method thereof. The
polyvinyl alcohol water-soluble 3D printing support consumable item is prepared from the following components:60 to 90 parts of
polyvinyl alcohol, 10 to 40 parts of
plasticizer, 0.1 to 1 part of
antioxidant, 0.1 to 5 parts of heat stabilizer, 0.5 to 2 parts of fluidity modifier, and 0.1 to 1 part of melt bonding
enhancer. The preparation process comprises the steps of (1) adding the polyvinyl
alcohol and the
plasticizer into a mixer, and aftermixing and stirring, putting into a
drying box; (2) adding the mixture, the
antioxidant, the heat stabilizer, the fluidity modifier and the melt bonding
enhancer into the mixture, and uniformly stirring; (3) after
drying the mixture, adding to a pelletizer for extruding and
pelletizing, and obtaining polyvinyl
alcohol modified particles through co-mixing, pulling, air-cooling and dicing; (4) extruding the particles through the 3D printing consumable item so as to form threads, and rolling. The polyvinyl
alcohol water-soluble 3D printing support consumable item and the preparation method thereof provided by the invention effectively solve the problem of poor bonding, the supportability is improved, the water solution speed is improved, and meanwhile, the requirement on water solution temperature is reduced.