High-gloss spray-free environment-friendly flame-retardant polycarbonate (PC) material and preparation method thereof
A technology of flame-retardant polycarbonate and polycarbonate, which is applied in the field of environment-friendly flame-retardant polycarbonate materials and its preparation, can solve problems such as surface fogging, achieve good high-gloss performance, and have great market application prospects
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Embodiment 1
[0031] A high-gloss spray-free environment-friendly flame-retardant polycarbonate composition and a preparation method thereof, the method comprising the following steps:
[0032] (1) Feed the ABS resin from the feeding port, feed water with a high-pressure pump at the side feeding port, the pressure is 7MP, melt and extrude at 200 ~ 260 ° C, the screw extruder speed is 500rpm, and the pressure is 2MPa, After melt extrusion, water-permeable ABS particles are obtained.
[0033] (2) Weigh each component by weight: PC: 100, water-permeable ABS particles: 40, flame retardant: 20, PMMA: 5, toughening agent: 5, antioxidant 245: 0.1, antioxidant 168 : 0.1, lubricant PETS: 0.3.
[0034] (3) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 500rpm, and the pressure is 2MPa. After melt extrusion, the product is obtained by granulation.
[0035] (4) The diameter of the extruder screw is 35mm, and the aspect ratio is 32.
Embodiment 2
[0037] A high-gloss spray-free environment-friendly flame-retardant polycarbonate composition and a preparation method thereof, the method comprising the following steps:
[0038] (1) Feed the ABS resin from the feeding port, feed water with a high-pressure pump at the side feeding port, the pressure is 7MP, melt and extrude at 200 ~ 260 ° C, the screw extruder speed is 500rpm, and the pressure is 2MPa, After melt extrusion, water-permeable ABS particles are obtained.
[0039] (2) Weigh each component by weight: PC: 100, water-permeable ABS particles: 15, flame retardant: 10, PMMA: 10, toughening agent: 10, antioxidant 245: 0.1, antioxidant 168 : 0.1, lubricant PETS: 0.3.
[0040] (3) Feed the raw materials from the feeding port, melt and extrude at 200-280°C, the screw extruder rotates at 500rpm, and the pressure is 2MPa. After melt extrusion, the product is obtained by granulation.
[0041] (4) The diameter of the extruder screw is 35mm, and the aspect ratio is 32.
Embodiment 3
[0064] Adopt the same preparation method as Example 1 or Example 2, the difference is that the raw materials used are different, and the details are as follows:
[0065] Aromatic polycarbonate resin: 100;
[0066] ABS resin: 25;
[0067] Polyarylphosphate: 15;
[0068] Ethylene-methyl acrylate: 8;
[0069] Polymethyl methacrylate: 8;
[0070] Antioxidant 1076:1;
[0071] Ethylene bis-stearamide: 0.1.
[0072] Among them, the molecular weight of the aromatic polycarbonate resin is 25,000, the molecular weight of the ABS resin is 150,000, and the molecular weight of the polymethyl methacrylate is 50,000.
[0073] After testing, the prepared polycarbonate material has high light performance and good flame retardancy.
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