The present invention relates to the field of color masterbatches, specifically disclosing a PLA color masterbatch for 3D printing, its preparation method, and its application. The PLA color masterbatch for 3D printing comprises the following components in weight parts: 60–90 parts PLA resin pellets, 10–20 parts pigment, 2–5 parts antioxidant, 0.5–2 parts chain extender, and 2–5 parts heat stabilizer; wherein the pigment is a polyurethane-coupled modified pigment. The preparation method comprises: drying all raw materials, mixing them according to the ratio, feeding the mixture into a twin-screw extruder for melt extrusion into strands, pelletizing, drying, and cooling to obtain the PLA masterbatch for 3D printing. The PLA color masterbatch of the present invention is suitable for 3D printing, offering advantages in enhancing printing smoothness and product gloss.
Country Code: CN
Application Number: CN202310846159.4
