Flame-retardant composite material with easy dyeing and laser marking and preparation method thereof
A laser marking and composite material technology, applied in the field of halogen-free flame retardant nylon 66 composite material and its preparation, can solve problems such as environmental hazards, violation of energy conservation and environmental protection, and achieve easy coloring, meet individual requirements, and good dispersion. Effect
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Embodiment 1
[0030] Embodiment 1 formula 1 and preparation method
[0031] Recipe 1:
[0032] Nylon 66 resin with an intrinsic viscosity of 2.3, 43 parts (by weight, the same below),
[0033] Alkali-free and arsenic-free chopped glass fiber with a glass fiber diameter of 10 μm, 30 parts,
[0034] Melamine urea cyanate MC-25, 20 parts,
[0035] Magnesium hydroxide, 5 parts,
[0036] Flair 820, 0.4 parts,
[0037] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: fatty acid salt, according to (coupling agent: antioxidant: release agent=1:2:5 weight ratio), A total of 1.6 servings.
[0038] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;
[0039] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 245°C and a screw speed of 300 rpm, and extrude to obtain granules.
Embodiment 2
[0040] Embodiment 2 formula 2 and preparation method
[0041] Recipe 2:
[0042] Nylon 66 resin with an intrinsic viscosity of 2.5, 43 parts,
[0043] The diameter of the glass fiber is 9 μm, alkali-free and arsenic-free chopped glass fiber, 30 parts,
[0044] Melamine polyphosphate MPP 350 powder, 20 parts,
[0045] Magnesium hydroxide, aluminum hydroxide compound, 5 parts,
[0046]Flair 830, 0.4 parts,
[0047] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: fatty acid salt, according to (coupling agent: antioxidant: release agent=1:2:5 weight ratio), 1.6 copies in total;
[0048] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;
[0049] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 250°C and a screw speed of 250 rpm, extrude and granulate, and obtain the product.
Embodiment 3
[0050] Embodiment 3 formula 3 and preparation method
[0051] Recipe 3
[0052] Nylon 66 resin with an intrinsic viscosity of 2.3, 40 parts,
[0053] Alkali-free and arsenic-free chopped glass fiber with a glass fiber diameter of 13 μm, 30 parts,
[0054] Melamine polyphosphate MPP 350 powder, 20 parts,
[0055] Melamine urea cyanate MC-25, 5 parts,
[0056] Wollastonite, 3 parts,
[0057] Flair 835, 0.4 parts,
[0058] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: silicone Anti 200, according to (coupling agent: antioxidant: release agent = 1:2:5 weight ratio), a total of 1.6 parts.
[0059] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;
[0060] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 260°C and a screw speed of 350 rpm, and extrude to obtain granules.
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