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Polycarbonate engineering plastic with electromagnetic shielding and heat conduction functions and preparation method thereof

A polycarbonate, electromagnetic shielding technology, applied in the field of engineering plastics, can solve the problem of no polycarbonate engineering plastics, and achieve the effects of reducing weight and volume occupation, high injection molding accuracy, and excellent electromagnetic shielding and thermal conductivity.

Pending Publication Date: 2021-04-02
中广核高新核材科技(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no report of polycarbonate engineering plastics with both electromagnetic shielding and heat conduction functions in the prior art

Method used

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  • Polycarbonate engineering plastic with electromagnetic shielding and heat conduction functions and preparation method thereof
  • Polycarbonate engineering plastic with electromagnetic shielding and heat conduction functions and preparation method thereof
  • Polycarbonate engineering plastic with electromagnetic shielding and heat conduction functions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a polycarbonate engineering plastic with both electromagnetic shielding and heat conduction functions, and its preparation method is as follows:

[0026] According to the ratio in Table 1, mix the components other than the reinforcing fiber into the twin-screw extruder, add the reinforcing fiber at the side feeding port, extrude and granulate, and obtain the polycarbonate polycarbonate with both electromagnetic shielding and heat conduction functions. Ester engineering plastics.

[0027] The formula of the polycarbonate engineering plastics of table 1 embodiment 1

[0028]

[0029]

Embodiment 2

[0031] This embodiment provides a polycarbonate engineering plastic with both electromagnetic shielding and heat conduction functions, and its preparation method is as follows:

[0032] According to the ratio in Table 2, mix the components other than the reinforcing fiber into the twin-screw extruder, add the reinforcing fiber at the side feed port, extrude and granulate, and obtain the polycarbonate polycarbonate with both electromagnetic shielding and heat conduction functions. Ester engineering plastics.

[0033] The formula of the polycarbonate engineering plastics of table 2 embodiment 2

[0034] components parts by weight Polycarbonate resin L-1225L 50 copies Polycarbonate resin FG1760 30 copies Antioxidant 168 0.5 parts Antioxidant 1010 1 copy Light stabilizer F538 0.5 parts Lubricant P126 1 copy Flame retardant BC-52 2 copies Chopped carbon fiber T700-SC 5 copies Expanded graphite EG-3 15 copies ...

Embodiment 3

[0036] This embodiment provides a polycarbonate engineering plastic with both electromagnetic shielding and heat conduction functions, and its preparation method is as follows:

[0037] According to the ratio in Table 3, mix the components other than the reinforcing fiber into the twin-screw extruder, add the reinforcing fiber at the side feed port, extrude and granulate, and obtain the polycarbonate polycarbonate with both electromagnetic shielding and heat conduction functions. Ester engineering plastics.

[0038] The formula of the polycarbonate engineering plastics of table 3 embodiment 3

[0039] components parts by weight Polycarbonate resin L-1225Y 50 copies Polycarbonate resin FG1760 30 copies Antioxidant 168 0.5 parts Antioxidant 1010 1 copy Light stabilizer F538 0.5 parts Lubricant P126 1 copy Flame retardant BC-52 2 copies Chopped Glass Fiber ECS 307-3-H 10 copies Chopped Stainless Steel Fiber G...

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Abstract

The invention discloses polycarbonate engineering plastic with electromagnetic shielding and heat conduction functions and a preparation method thereof. The polycarbonate engineering plastic comprisesthe following components in parts by weight: 50-90 parts of polycarbonate resin, 0.5-2 parts of antioxidant, 0.2-1 part of light stabilizer, 0.2-2 parts of lubricant, 0.5-5 parts of flame retardant,2-20 parts of reinforcing filler, and 5-30 parts of a compound electric conduction and heat conduction filler; wherein the compound electricity conduction and heat conduction filler is obtained by compounding 2-20 parts of electricity-conducting filler and 2-20 parts of heat-conducting filler, the electricity conduction filler is selected from one of fibrous carbon powder, expanded graphite, graphene, carbon nanotubes and chopped stainless steel fibers, and the heat-conducting filler is selected from one of boron nitride, aluminum nitride, aluminum oxide and silicon carbide. The polycarbonateengineering plastic disclosed by the invention has electromagnetic shielding and heat conducting functions, can be applied to electronic equipment, saves material consumption and volume occupation, and enables electronic products to be economical and attractive.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a polycarbonate engineering plastic with both electromagnetic shielding and heat conduction functions and a preparation method thereof. Background technique [0002] Electromagnetic waves inside electronic equipment itself and between equipment are everywhere, and electromagnetic radiation and electromagnetic interference have a serious impact on the normal operation of electronic equipment. At the same time, with the updating and upgrading of electronic products, the power consumption of the equipment continues to increase, and the calorific value also rises rapidly. The bottleneck of high-frequency and high-power electronic products in the future may be the electromagnetic radiation and heat generated by them. In order to solve this problem, more and more electromagnetic shielding and heat-conducting devices will be added to the design of electronic products. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/04C08K7/14C08K3/04C08K3/38C08K7/06C08K7/24C08K3/22C08K3/34
CPCC08K2003/2227C08K2003/385C08K2201/001C08L69/00C08K13/04C08K7/14C08K3/041C08K3/38C08K7/06C08K7/24C08K3/22C08K3/34
Inventor 翁伟
Owner 中广核高新核材科技(苏州)有限公司
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