A kind of catalyzed charcoal high-efficiency halogen-free flame-retardant pc/abs mixture and preparation method thereof
A mixture and high-efficiency technology, which is applied in the field of catalytic carbonization, high-efficiency halogen-free flame-retardant PC/ABS mixture and its preparation, can solve the problem of difficult to overcome the ignition effect of candle wick, achieve good compatibility and dispersibility, improve resistance The effect of improving combustion performance, improving density and quality
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Embodiment 1
[0053] The catalyzed charcoal-forming halogen-free flame-retardant carbon fiber reinforced PC / ABS mixture of the present embodiment is mainly made of the following raw materials in weight percentage: PC resin (59%), ABS resin (14.7%), chopped carbon fiber (15%), EMA (5%), RDP (5%), phenoxyphosphazene (0.5%), zirconium phosphate modified triazine silicon-containing char former (0.5%), NOR116 (0.3%).
[0054] Mix PC, ABS, EMA, RDP, NOR116, phenoxyphosphazene and zirconium phosphate-modified triazine silicon-containing carbon formers at high speed for 20 minutes and then put them into the main feeding bin of the twin-screw extruder. The main feeding screw speed 25rpm, the chopped carbon fiber is placed in the side feeding bin of the twin-screw extruder. The control temperature (eight sections from the feeding port to the nozzle outlet) is 200°C, 220°C, 220°C, 230°C, 235°C, 245°C, 245°C, 250°C, and the vacuum pressure of the barrel in the twin-screw extrusion process should be Co...
Embodiment 2
[0056] The catalyzed charcoal-forming halogen-free flame-retardant carbon fiber reinforced PC / ABS mixture of the present embodiment is mainly made of the following raw materials in weight percentage: PC resin (67%), ABS resin (16.7%), chopped carbon fiber (5%), EMA (5%), RDP (5%), phenoxyphosphazene (0.5%), zirconium phosphate modified triazine silicon-containing char former (0.5%), NOR116 (0.3%).
[0057] Mix PC, ABS, EMA, RDP, NOR116, phenoxyphosphazene and zirconium phosphate-modified triazine silicon-containing carbon formers at high speed for 20 minutes and then put them into the main feeding bin of the twin-screw extruder. The main feeding screw speed 25rpm, the chopped carbon fiber is placed in the side feeding bin of the twin-screw extruder. The control temperature (eight sections from the feeding port to the nozzle outlet) is 200°C, 220°C, 220°C, 230°C, 235°C, 245°C, 245°C, 250°C, and the vacuum pressure of the barrel in the twin-screw extrusion process should be Con...
Embodiment 3
[0059] The catalyzed charcoal-forming halogen-free flame-retardant carbon fiber reinforced PC / ABS mixture of the present embodiment is mainly made of the following raw materials in weight percent: PC resin (37%), ABS resin (37%), chopped carbon fiber (15%), EMA (5%), RDP (5%), phenoxyphosphazene (0.5%), zirconium phosphate modified triazine silicon-containing char former (0.5%), NOR116 (0.3%).
[0060] Mix PC, ABS, EMA, RDP, NOR116, phenoxyphosphazene and zirconium phosphate-modified triazine silicon-containing carbon formers at high speed for 20 minutes and then put them into the main feeding bin of the twin-screw extruder. The main feeding screw speed 25rpm, the chopped carbon fiber is placed in the side feeding bin of the twin-screw extruder. The control temperature (eight sections from the feeding port to the nozzle outlet) is 200°C, 220°C, 220°C, 230°C, 235°C, 245°C, 245°C, 250°C, and the vacuum pressure of the barrel in the twin-screw extrusion process should be Control...
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