A kind of dark flame-retardant nylon and preparation method thereof
A flame retardant nylon, dark color technology, applied in the field of nylon material reinforcement, can solve the problems of toner precipitation, surface floating fibers, etc., to achieve the effect of enhancing fusion, uniform distribution, and realizing industrialized large-scale products
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Embodiment 1~4
[0032] Embodiments of the dark flame retardant nylon of the present invention, the preparation method of the product, comprising the following steps:
[0033] The lubricant and pigment are placed in the ultrasonic cell crusher, crushed at a frequency of 25kHz at room temperature for 4h to a particle size of≤ 200nm, mixed and stirred for 20min, and then mixed evenly with other components in proportion, transferred to a twin screw extruder, melted and blended at 230 ° C and extruded granulation, i.e., the dark flame retardant nylon was obtained.
[0034] The raw materials used in each embodiment are as follows, and the composition of the raw materials is shown in Table 1.
[0035] PA6 resin: high viscosity PA6 resin, grade HY-2800;
[0036] Glass fiber: short cut glass fiber, the length of the short cut glass fiber is 3 ~ 25mm, grade Chongqing glass fiber ECS301HP-3-H;
[0037] Antioxidants: antioxidant 1098;
[0038] Flame retardant: brominated polystyrene, grade XZ6700;
[0039] L...
Embodiment 5
[0048] The difference between the present embodiment and Example 1 is only that the time of the ultrasonic crushing treatment is 2h, and the particle size of the lubricant and the pigment after treatment > 200nm (particle size distribution is 500nm ~ 5μm).
[0049] Table 1
[0050]
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