A barrier nylon composite material, its preparation method, and application. The barrier nylon composite comprises: nylon 6, PA-MXD6, elastomer and/or polyethylene, organically coupled nano-montmorillonite, flow agent, lubricant, and antioxidant. The preparation method comprises: Preparation of barrier masterbatch: Add PA-MXD6, elastomer and/or polyethylene, organically coupled nano-montmorillonite, lubricant, antioxidant, opening agent, and a portion of nylon to an internal mixer. Heat and mix thoroughly, then extrude into sheets and pelletize to obtain barrier masterbatch. Twin-screw blending extrusion pelletization: Continuously feed the remaining nylon 6 and barrier masterbatch into a twin-screw extruder, melt blend and extrude, cool, and pelletize to complete. Apply the barrier nylon composite material to food packaging films. This invention's barrier nylon composite material features low cost, high strength, boil resistance, puncture resistance, and excellent barrier properties. The method is simple, cost-effective, and suitable for industrial production.
Country Code: CN
Application Number: CN202210446350.5
