A laser-weldable, high-blackness, halogen-free flame-retardant glass fiber-reinforced PA6 material and its preparation method. This material comprises the following components by weight percentage: PA6 resin 26.9–45.4%, glass fiber 25–35%, halogen-free flame retardant 16–18%, laser penetrant A 10–20%, laser penetrant B 3–5%, antioxidant 0.1–0.3%, lubricant 0.5–0.6%, flow agent 0.4–0.6%, and color pigment 0.2–2%. Place PA6 resin, both laser transmittance enhancers, and color powder into a high-speed mixer. Add additives to obtain mixed masterbatch A. Feed mixed masterbatch A into the main hopper of a twin-screw extruder. Add halogen-free flame retardant and glass fiber separately into the loss-in-weight feed hoppers of the second and fourth heating zones. After cooling the extrudate, pelletize and dry to obtain the final product. This preparation process is environmentally friendly, simple, and low-cost, yielding PA6 material with high strength and high laser transmittance.
Country Code: CN
Application Number: CN202211580777.0
