Conducting halogen-free flame-retardant PA6 (polyamide 6) composite material and preparation method thereof
A composite material and conductive filler technology, applied in the field of PA6 composite material and its preparation, can solve the problems of poor dispersibility, low flame retardancy, large amount of conductive filler materials, etc., to improve compatibility, reduce damage, reduce small impact effect
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Embodiment 1
[0027] Firstly, PA6 is air-dried at 110°C for 6 hours, the toughener is air-dried at 50°C for 5 hours, and other components are air-dried at 100°C for 4 hours. The intrinsic viscosity of the PA6 resin is 3.6dl / g. The melt index of the toughening agent is 27g / 10min, and the grafting rate is 1.2%. . Weigh the pre-dried PA6, flame retardant, toughening agent, conductive filler, anti-dripping agent and antioxidant according to the mass given in Table 2 and add them to the high-speed mixer at a time according to the ratio of parts and mix them evenly, and stir for 15 minutes , to obtain the uniformly mixed material, then control the processing temperature of the twin-screw extruder to 190-235°C, and the screw speed to 10-15HZ, add the mixed material to the hopper of the twin-screw extruder, and melt it at high temperature The specific processing temperature of the product obtained after blending and extruding, cooling, air-drying, and granulation is shown in Table 1. The obtained...
Embodiment 2
[0030] Firstly, PA6 is air-dried at 120°C for 5 hours, the toughener is air-dried at 60°C for 4 hours, and other components are air-dried at 80°C for 5 hours. The intrinsic viscosity of the PA6 resin is 2.4dl / g, so The melt index of described toughening agent is 24g / 10min, and graft rate is 0.8%. Weigh the pre-dried PA6, flame retardant, toughening agent, conductive filler, anti-dripping agent and antioxidant according to the mass given in Table 2 and add them to the high-speed mixer at a time according to the ratio of parts and mix them evenly, and stir for 10 minutes , to obtain the uniformly mixed material, then control the processing temperature of the twin-screw extruder to 190-235°C, and the screw speed to 10-15HZ, add the mixed material to the hopper of the twin-screw extruder, and melt it at high temperature The specific processing temperature of the product obtained after blending and extruding, cooling, air-drying, and granulation is shown in Table 1. The obtained g...
Embodiment 3
[0033]Firstly, PA6 is air-dried at 115°C for 6 hours, the toughening agent is air-dried at 55°C for 5 hours, and other components are air-dried at 100°C for 4 hours. The intrinsic viscosity of the PA6 resin is 3.0dl / g. The melt index of the toughening agent is 25g / 10min, and the grafting rate is 1.0%. Weigh the pre-dried PA6, flame retardant, toughening agent, conductive filler, anti-dripping agent and antioxidant according to the mass given in Table 2 and add them to the high-speed mixer at a time according to the ratio of parts and mix them evenly, and stir for 15 minutes , to obtain the uniformly mixed material, then control the processing temperature of the twin-screw extruder to 190-235°C, and the screw speed to 10-15HZ, add the mixed material to the hopper of the twin-screw extruder, and melt it at high temperature The specific processing temperature of the product obtained after blending and extruding, cooling, air-drying, and granulation is shown in Table 1. The obtai...
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