High processing temperature flame-retardant long glass fiber-reinforced polypropylene material and preparation method thereof
A polypropylene material and processing temperature technology, applied in the field of high processing temperature flame-retardant long glass fiber reinforced polypropylene material and its preparation, can solve the problem of high flame retardant addition, uneven dispersion of flame retardant, combustion and mechanical properties Low-level problems, to achieve excellent flame retardancy and thermal properties, good dispersion, and mechanical properties are not affected
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Embodiment 1
[0023] 1) Production of functional flame retardant masterbatch
[0024] 13 parts of polypropylene grafted with maleic anhydride, 67.44 parts of ethyl-bis(tetrabromophthalimide), 16.86 parts of antimony trioxide, 0.1 part of antioxidant AT-10 and 0.1 part of AT-168 , 0.5 parts of anti-dripping agent AD-541 and 2 parts of lubricant montan wax were poured into a high-speed mixing mixer and mixed for 10 minutes, and the aforementioned mixed materials were added to the internal mixer for banburying, and the banburying processing temperature was 160°C. Pour the banbury-mixed material into the forced feeder, the speed of the feeder is 5rpm, the material enters the single screw from the feeder, the extrusion temperature is 200°C, the screw speed is 275rpm, the product is hot-cut into pellets, and air-dried Let cool and set aside.
[0025] 2) Preparation of high processing temperature flame retardant long glass fiber reinforced polypropylene material:
[0026] Pass 20 parts of long g...
Embodiment 2
[0028] 1) Production of functional flame retardant masterbatch
[0029] 16.10 parts of polypropylene grafted with maleic anhydride, 50.5 parts of ethyl-bis(tetrabromophthalimide) and 13.84 parts of decabromodiphenylethane, 16.86 parts of antimony trioxide, 0.1 part of antioxidant Pour AT-10 and 0.1 part of AT-168, 0.5 part of anti-dripping agent AD-541 and 2 parts of lubricant montan wax into a high-speed mixing mixer and mix for 10 minutes, then add the above-mentioned mixed materials into the internal mixer for banburying , the banburying processing temperature is 160°C, the banburying good material is poured into the forced feeder, the speed of the feeder is 5rpm, the material enters the single screw from the feeder, the extrusion temperature is 200°C, the screw speed The temperature is 275rpm, and the product is hot-cut into pellets, air-dried and cooled for later use.
[0030] 2) Preparation of high processing temperature flame retardant LFT-PP material:
[0031] Pass 2...
Embodiment 3
[0033] 1) 12.63 parts of polypropylene grafted with maleic anhydride, 52 parts of ethyl-bis(tetrabromophthalimide), 16 parts of brominated polystyrene, 16.67 parts of antimony trioxide, 0.1 part of antioxidant Put agent AT-10 and 0.1 part of AT-168, 0.5 part of anti-dripping agent AD-541 and 2 parts of lubricant montan wax into a high-speed mixing mixer and mix for 10 minutes, and put the aforementioned mixed materials into the internal mixer Mixing, the banburying processing temperature is 160°C, pour the mixed materials into the forced feeder, the speed of the feeder is 5rpm, the material enters the feeder into the single screw, the extrusion temperature is 200°C, the screw The rotating speed is 275rpm, and the product is hot-cut into pellets, air-dried and cooled for later use.
[0034] 2) Preparation of high processing temperature flame retardant LFT-PP material:
[0035] Pass 20 parts of long glass fiber, 30 parts of functional flame retardant masterbatch and 50 parts of...
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