Halogen-free flame-retarding polyamide composition
A technology of flame-retardant polyamide and composition, which is applied in the field of flame-retardant materials, can solve the problems of difficult mixing of nylon resin and achieve the effects of improving interface compatibility, excellent mechanical properties, and improving dispersibility
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Embodiment 1
[0029] Weigh 5000g of triglycidyl isocyanurate, place it in a high-speed mixer and stir for 5 minutes at 80°C, and then spray 50.0g of phosphoric acid in mist while maintaining the high-speed stirring of triglycidyl isocyanurate The triphenyl ester was continuously stirred for 10 minutes, and then discharged for the preparation of a halogen-free flame-retardant PA composition.
[0030] The composition and weight percent of the halogen-free flame-retardant PA composition are:
[0031] Shenma PA6 2.4 85wt%; triglycidyl isocyanurate treated with triphenyl phosphate 12wt%; methylsilyl cage silsesquioxane 3wt%; antioxidant 1076 0.2wt%.
[0032] Weigh 850g of PA, 120g of triglycidyl isocyanurate treated with triphenyl phosphate, 30.0g of methylsilyl cage silsesquioxane, 2.0g of antioxidant 1076, the above components After mixing evenly at high speed in a high-speed mixer, add it to a twin-screw extruder. The screw length-to-diameter ratio of the twin-screw extruder is 44, and the t...
Embodiment 2
[0034] Weigh 5000g of melamine cyanurate, place it in a high-speed mixer and stir for 5 minutes at 80°C, then spray 100.0g of tetraphenylbisphenol into it in a mist state while maintaining the high-speed stirring of melamine cyanurate A diphosphate, continue to stir for 10 minutes, then discharge, used for the preparation of halogen-free flame-retardant PA composition.
[0035] The composition and weight percent of the halogen-free flame-retardant PA composition are:
[0036] Shenma PA6 2.7 80wt%; melamine cyanurate treated with tetraphenyl bisphenol A diphosphate 19wt%; vinyl octapolysilsesquioxane 1wt%; antioxidant 1098 0.5wt%.
[0037]Weigh 800g of PA, 190g of melamine cyanurate treated with tetraphenyl bisphenol A diphosphate, 10.0g of vinyl octapolysilsesquioxane, 5.0g of antioxidant 1098, and mix the above After being uniformly mixed at a high speed in a high-speed mixer, it is added to a twin-screw extruder. The screw length-to-diameter ratio of the twin-screw extruder...
Embodiment 3
[0039] Weigh 2500g of triglycidyl isocyanurate and 2500g of melamine, place it in a high-speed mixer at 100°C and stir for 5 minutes, then spray 500.0g of tetrapolycyanurate into 500.0g of melamine derivatives under high-speed stirring. Phenyl resorcinol diphosphate, continued to stir for 10 minutes, and then discharged, used for the preparation of halogen-free flame-retardant PA composition.
[0040] The composition and weight percent of the halogen-free flame-retardant PA composition are:
[0041] Shenma PA66 2.7 90wt%; melamine derivatives treated with tetraphenylresorcinol diphosphate 7wt%; tetramethylammonium cage silsesquioxane 2wt%; antioxidant 1098 1.0wt%.
[0042] Weigh 900g of PA, 70g of tetraphenylresorcinol diphosphate processed melamine derivatives, 20.0g of tetramethylammonium cage silsesquioxane, 10.0g of antioxidant 1098, the above After the components are uniformly mixed at high speed in the high-speed mixer, they are added to the twin-screw extruder. The scr...
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