The invention discloses a weather-resistant PVC color masterbatch and its preparation method. The masterbatch is prepared from PVC resin, magnesium oxide, nitrogen-containing hindered amine light stabilizer, toughening agent, heat stabilizer, lubricant and pigment in a specific ratio. The preparation process includes: S1, uniformly mixing all raw materials to form a homogeneous mixture; S2, feeding the mixture into a twin-screw extruder for extrusion and pelletizing to produce the weather-resistant PVC color masterbatch. The product features outstanding weather resistance and toughness, complies with national standard indicators, and maintains long-term stability in outdoor engineering applications, significantly extending service life.
Area Code: CN
Application Number: CN202411819322.9
