Antibacterial antistatic enhanced polycarbonate (PC) material and preparation method thereof

A polycarbonate and reinforced technology, which is applied in the field of antibacterial and antistatic reinforced polycarbonate materials and their preparation, can solve the antibacterial problems of less polycarbonate materials, and achieve the advantages of reduced usage, excellent physical properties, and excellent physical properties. Effect

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

AI Technical Summary

Problems solved by technology

At present, there are many patents for polycarbonate modification, such as a kind of glass fiber reinforced polycarbonate resin with high temperature resistance disclosed by Chinese patent CN102746634 A, which improves the temperature resistance of materials, and a low-cost polycarbonate resin disclosed by Chinese patent CN104004337A Antistatic polycarbonate resin and its preparation method have improved the electrical properties of the polymer matrix, but there are few reports about the antibacterial properties of polycarbonate materials. In electronic products, the high rigidity, antibacterial properties, and antistatic properties of materials are used Widely concerned, the antibacterial and antistatic properties of products are very important in use

Method used

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  • Antibacterial antistatic enhanced polycarbonate (PC) material and preparation method thereof
  • Antibacterial antistatic enhanced polycarbonate (PC) material and preparation method thereof
  • Antibacterial antistatic enhanced polycarbonate (PC) material and preparation method thereof

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Experimental program
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Effect test

Embodiment 4

[0032] The raw materials used are,

[0033] PC resin: Asahi Kasei's L-1250Y, with a relative molecular weight of 15,000 and a glass transition temperature of 140°C, 70kg;

[0034] Carbon fiber: 4mm chopped carbon fiber sheet with a bulk density of 400g / L, 5kg;

[0035] Antibacterial agent: zeolite-based antibacterial agent containing silver ions; 5kg;

[0036] Flame retardant: decabromodiphenyl ether, 0.5kg;

[0037] Also added a small amount of lubricants, antioxidants, anti-ultraviolet aging agents and fillers;

[0038] The specific preparation method is to prepare materials according to the formula, add PC resin, antibacterial agent, flame retardant, lubricant, antioxidant, anti-ultraviolet aging agent and filler to a mixing mixer for mixing, and pass the obtained mixture through a twin-screw extruder Add the carbon fiber from the side feeding port of the twin-screw extruder, blend and melt, extrude and granulate to obtain the product. The barrel temperature of the twin-...

Embodiment 5

[0040] The raw materials used are,

[0041] PC resin: relative molecular weight is 30000, glass transition temperature is 150℃, 90kg;

[0042] Carbon fiber: 12mm chopped carbon fiber sheet, bulk density 600g / L, 20kg;

[0043] Antibacterial agent: zeolite-based antibacterial agent containing silver ions, 10kg;

[0044] Flame retardant: brominated styrene, 1kg;

[0045] The specific preparation method is to prepare materials according to the formula, add PC resin, antibacterial agent and flame retardant to the mixing mixer for mixing; add the obtained mixture through the main feeding port of the twin-screw extruder, and extrude the carbon fiber from the twin-screw extruder The side feed port of the extruder is added, blended and melted, extruded and granulated to obtain the product. The barrel temperature of the twin-screw extruder is 280° C., the screw speed is 600 rpm, and the pressure is 2.5 MPa.

Embodiment 6

[0047] The raw materials used are,

[0048] PC resin: relative molecular weight is 20000, glass transition temperature is 145℃, 80kg;

[0049] Carbon fiber: 8mm chopped carbon fiber sheet with a bulk density of 500g / L, 10kg;

[0050] Antibacterial agent: TiO 2 Photocatalytic antibacterial agent, 7kg;

[0051] Flame retardant: brominated epoxy, 0.8kg;

[0052] The specific preparation method is to prepare materials according to the formula, add PC resin, antibacterial agent and flame retardant to the mixing mixer for mixing; add the obtained mixture through the main feeding port of the twin-screw extruder, and extrude the carbon fiber from the twin-screw extruder The side feed port of the extruder is added, blended and melted, extruded and granulated to obtain the product. The temperature of the barrel of the twin-screw extruder is 260 ° C, the screw speed is 400 rpm, and the pressure is 2 MPa.

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Abstract

The invention relates to an antibacterial antistatic enhanced polycarbonate (PC) material and a preparation method thereof. The antibacterial antistatic enhanced PC material comprises the following components in parts by weight: 70-90 parts of PC resin, 5-20 parts of carbon fiber, 0.5-1 part of flame retardant and 5-10 parts of antibacterial agent. The preparation method comprises the following steps: adding the PC resin, antibacterial agent and flame retardant into a mixing stirrer, mixing, adding the mixture through a main feed inlet of a double screw extruder, adding the carbon fibers through a side feed inlet of the double screw extruder, and carrying out blend melting and extrusion granulation to obtain the product. Compared with the prior art, the antibacterial agent added in the PC resin enhances the antibacterial property of the PC material; the carbon fibers are compounded to improve the electric properties of the product; and thus, the material has the advantages of high rigidity, static resistance, bacterial resistance and flame retardancy, and can be widely used in various electronic product devices.

Description

technical field [0001] The invention belongs to the fields of polymer blending and polymer molding processing, and in particular relates to an antibacterial and antistatic enhanced polycarbonate material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is colorless and transparent, heat-resistant and impact-resistant, and has good mechanical properties at ordinary operating temperatures. Compared with polymethyl methacrylate with similar properties, polycarbonate has better impact resistance , high refractive index, good processability, and is widely used in the fields of automobiles and electronic products. Reinforced PC materials can increase the rigidity of the material and inhibit deformation, and are widely used in thin-walled structural parts. At present, there are many patents for polycarbonate modification, such as a kind of glass fiber reinforced polycarbonate resin with high temperature resistance disclosed by Chinese patent CN102...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K7/06C08K3/00C08K5/00C08K13/06C08K3/22
CPCC08K7/06C08K3/08C08K9/12C08K13/06C08K2003/0806C08K2003/2241C08K2201/004C08K2201/017C08L69/00C08L2201/04
Inventor 祝彤李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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