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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

Active Publication Date: 2017-05-17
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, it is still difficult for such materials to achieve high-gloss spray-free coating, and the surface often has the problem of fogging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a high-gloss spray-free environment-friendly flame-retardant polycarbonate (PC) material and a preparation method thereof. The composition comprises the following components in parts by weight: 100 parts of PC resin, 15-40 parts of acrylonitrile-butadiene-styrene (ABS) resin, 10-20 parts of flame retardant, 5-10 parts of polymethyl methacrylate (PMMA), 0.1-1 part of antioxidant and 0.1-1 part of lubricant. The preparation method comprises the following steps: (1) granulating the ABS resin to obtain ABS granules; and (2) mixing the ABS granules with the rest raw materials, and extruding to obtain the product. Compared with the prior art, the flame retardant is free of halogens, so the PC composition provided by the invention is an environment-friendly flame-retardant high-polymer material. The ABS resin is granulated to eliminate small-molecule volatile matters in the ABS resin, thereby preventing the small molecules from aggregating on the material surface and from influencing the high-gloss spray-free effect. Meanwhile, the PMMA is added to obtain the high-surface-quality high-gloss spray-free environment-friendly flame-retardant PC composition.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-gloss spray-free environment-friendly flame-retardant polycarbonate material and a preparation method thereof. Background technique [0002] Due to the large pollution, high cost and great harm to human body of plastic parts spraying, high-gloss spray-free materials have become the focus of the market. Especially the high-gloss spray-free material based on polycarbonate is widely used for its excellent physical properties and strong impact resistance. [0003] However, due to the poor processability of polycarbonate materials, an alloy material of polycarbonate and styrene-butadiene-acrylonitrile (ABS) is widely used. In order to meet the fire protection requirements of PC / ABS in practical use, research on environment-friendly flame-retardant PC / ABS alloys has become the focus of this field. However, at present, it is still difficult for such materials to achieve high-gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L33/12B29B9/06B29C47/76B29C48/76
CPCB29B9/06B29C48/763B29C48/766C08L69/00C08L2201/02C08L2205/035C08L55/02C08L33/12
Inventor 祝彤李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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