The present invention relates to a method for preparing long fiber-reinforced thermoplastic plastics by extrusion molding, falling within the field of polymer material technology. The method comprises the following steps: feeding thermoplastic resin through the main feed port of a twin-screw extruder with dual-side feeding; feeding long fibers through the first side feed port; feeding LFT-G masterbatch through the second side feed port; and obtaining long fiber-reinforced thermoplastic resin after extrusion processing. The second side feed port is positioned downstream of the first side feed port. This method fully leverages the advantages of LFT-D and LFT-G technologies, enabling the processing of long fiber-reinforced thermoplastics via a dual-feed twin-screw extrusion approach. It integrates the strengths of LFT-D in-line molding equipment technology with LFT-G extrusion molding equipment technology while circumventing their respective shortcomings.
Country Code: CN
Application Number: CN202111571649.5
