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Conductive PC/ABS composite material and its preparation method

A composite material and ABS resin technology, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, etc., can solve the problems of insufficient physical properties of conductive plastics, achieve stable microstructure, improve blending effect, and improve toughness

Inactive Publication Date: 2012-02-01
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of conductive fillers will greatly affect the physical properties of conductive plastics, resulting in insufficient physical properties of conductive plastics.

Method used

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  • Conductive PC/ABS composite material and its preparation method
  • Conductive PC/ABS composite material and its preparation method
  • Conductive PC/ABS composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The conductive PC / ABS composite material of this embodiment comprises the following components by weight percentage:

[0026] 70% polycarbonate resin, 14% ABS resin, 5% ABS grafted maleic anhydride (compatibilizer), 3% copolymer of methacrylate and acrylate (toughener), 8% conductive carbon black.

[0027] Its preparation method is as follows:

[0028] Step 1. Weigh each component according to the above weight percentage, put the weighed polycarbonate resin and ABS resin into a drying box respectively, and dry the polycarbonate resin at 100°C for 3 hours; ABS resin at 80 At ℃, dry for 2h;

[0029] Step 2, put the dried polycarbonate resin, ABS resin and ABS grafted maleic anhydride, methacrylate and acrylate copolymer and conductive carbon black into a high-speed mixer and stir for 3 minutes until uniformly mixed. form a mixture;

[0030] Step 3: Add the mixed material into the hopper of the twin-screw extruder, carry out the melting reaction, extrude and granulate, ...

Embodiment 2

[0032] The conductive PC / ABS composite material of this embodiment comprises the following components by weight percentage:

[0033] Polycarbonate resin 70%, ABS resin 10%, ethylene-butyl acrylate-glycidyl methacrylate (compatibilizer) 2%, methyl methacrylate, butadiene and styrene terpolymer (increase toughening agent) 3%, conductive carbon black 15%.

[0034] Its preparation method is as follows:

[0035] Step 1. Weigh each component according to the above weight percentage, put the weighed polycarbonate resin and ABS resin into a drying box respectively, and dry the polycarbonate resin at 120°C for 2.5 hours; ABS resin at 90°C ℃, dry for 1.5h;

[0036] Step 2, put polycarbonate resin, ABS resin and ethylene-butyl acrylate-glycidyl methacrylate, methyl methacrylate, butadiene and styrene terpolymer and conductive carbon black after drying treatment Stir in a high-speed mixer for 3 minutes until the mixture is evenly mixed to form a mixed material;

[0037] Step 3: Add th...

Embodiment 3

[0039] The conductive PC / ABS composite material of this embodiment comprises the following components by weight percentage:

[0040] Polycarbonate resin 50%, ABS resin 30%, polypropylene grafted maleic anhydride (compatibilizer) 3%, methacrylate and acrylate copolymer (toughener) 4%, conductive carbon black 13% .

[0041] Its preparation method is as follows:

[0042] Step 1. Weigh each component according to the above weight percentage, put the weighed polycarbonate resin and ABS resin into a drying oven respectively, and dry the polycarbonate resin at 110°C for 3 hours; ABS resin at 85 At ℃, dry for 2h;

[0043] Step 2. Put the dried polycarbonate resin, ABS resin, polypropylene grafted maleic anhydride, methacrylate and acrylate copolymer, and conductive carbon black into a high-speed mixer and stir for 3 minutes until evenly mixed , forming a mixed material;

[0044]Step 3: Add the mixed material into the hopper of the twin-screw extruder, carry out the melting reactio...

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Abstract

The invention discloses a conductive PC / ABS composite material and its preparation method. The composite material provided by the invention comprises the following components of: by weight, 50-70% of polycarbonate resin; 10-30% of ABS resin; 8-20% of conductive carbon black; 2-5% of a compatilizer; and 3-6% of a flexibilizer. According to the prepared conductive PC / ABS composite material, the ABSresin and the flexibilizer react with the polycarbonate resin, thus raising the toughness of the conductive PC / ABS composite material and enhancing the shock resistance of the resin added with a conductive filling material; in addition, the compatilizer is used to raise the blending effect of the polycarbonate resin and the ABS resin during processing, stabilize the microstructure of the conductive PC / ABS composite material and improve the comprehensive performance of the material.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a conductive PC / ABS composite material and a preparation method thereof. [Background technique] [0002] Under normal circumstances, plastics have good insulation properties, and some electrical components, such as electric boards, sensors, and electric shielding parts, require materials to be conductive in addition to being easy to process and light in weight. Conductive plastics, that is, conductive plastics. [0003] In the prior art, the method of compounding is often used when preparing conductive plastics, that is, the polymer is used as the matrix, and it is made by cooperating with conductive fillers, hydrophilic polymers or antistatic agents. Among them, conductive fillers are usually conductive carbon black, Carbon nanotubes and metal powder, etc. The conductive plastic prepared by this composite method has the advantages of light weight, high conductivity, simple p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K13/02C08K3/04H01B1/24B29B9/06B29C47/92B29C48/92
Inventor 徐东徐永潘明熙
Owner SHENZHEN KEJU NEW MATERIAL
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