The present invention provides a spray-free masterbatch for PET and its preparation method, characterized in that the masterbatch components, by weight parts, comprise: effect pigment 20–45 parts by weight, other pigments 0–10 parts by weight, dispersant 3–15 parts by weight, lubricant 2–10 parts by weight, chain extender 0–5 parts by weight, coupling agent 0–5 parts by weight, and antioxidant 0–5 parts by weight. The preparation method for the spray-free masterbatch for PET is as follows: Weigh the raw materials according to the above weight ratios, mix them uniformly in a high-speed mixer, then feed them into a co-rotating twin-screw extruder for blending, extrusion, drawing, water cooling, air cooling, and pelletizing to obtain the masterbatch. This invention specifically incorporates additives such as chain extenders and coupling agents to produce PET color masterbatch with spray-free effects. This masterbatch exhibits excellent dispersion, tinting strength, and broad applicability. It is dust-free and environmentally friendly during use, produces no noticeable weld lines or flow marks, and enhances the mechanical properties of products. Its simple process and superior performance significantly expand the applications of PET.
Country Code: CN
Application Number: CN202310591645.6
