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A kind of conductive plastic material and preparation method thereof

A conductive plastic, carbazole-based technology, applied in the field of conductive plastic materials and their preparation, can solve the problems of low requirements for equipment and reaction conditions, unstable quality of conductive plastic materials, weak anti-electromagnetic interference ability, etc. The effect of electromagnetic drying ability, excellent anti-ultraviolet aging ability and strong anti-electromagnetic interference ability

Active Publication Date: 2021-06-08
东莞市宏昱新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a conductive plastic material and a preparation method thereof. The preparation method is simple and easy to implement, the raw materials are easy to obtain, the requirements for equipment and reaction conditions are not high, and it is suitable for large-scale production; The conductive plastic material prepared by the above preparation method overcomes the problems of unstable quality, poor anti-aging performance, low conductivity, weak anti-electromagnetic interference ability and difficult processing and molding of ordinary plastic materials in the prior art, and has excellent Anti-ultraviolet aging ability, strong mechanical properties and anti-electromagnetic interference ability, good processing fluidity, high conductivity, in line with the requirements for the use of electronic product shell materials, is a good substitute for metal shell materials

Method used

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  • A kind of conductive plastic material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A conductive plastic material, made of the following components by weight: 60 parts of polysulfide grafted carbonate-based carbazole-type ionomer, 5 parts of carboxylated fullerene, 1 part of silane coupling agent KH5601, K- 2 parts resin.

[0032] The preparation method of the polythioether grafted carbonate-based carbazole type ionomer comprises the steps:

[0033] 1) Dissolve 310g of 4,4'-bis(9-ethyl-3-carbazolevinyl)-1,1'-biphenyl and 100g of ethanol-2-chlorocarbonate in 1000g of dimethyl sulfoxide to form a solution , then add 30g of sodium hydroxide therein, stir and react at 40°C for 10 hours in a nitrogen atmosphere, then add 1-[2-(trimethylsilyl)ethoxycarbonyloxy]benzotri 30 g of azole, continued to stir for 1 hour, then precipitated in water, washed the product 5 times with ethanol, and then placed it in a vacuum drying oven at 65 ° C for 10 hours to obtain a carbonate-based carbazole-type ionomer;

[0034] 2) Dissolve 30 g of the carbonate-based carbazole-t...

Embodiment 2

[0039] A conductive plastic material, made of the following components by weight: 63 parts of polysulfide grafted carbonate-based carbazole ionomer, 7 parts of amino-modified fullerene, 2 parts of silane coupling agent KH5702, thermoplastic Elastomer POE 3 parts.

[0040] The preparation method of the polythioether grafted carbonate-based carbazole type ionomer comprises the steps:

[0041]1) Dissolve 313g of 4,4'-bis(9-ethyl-3-carbazolevinyl)-1,1'-biphenyl and 100g of ethanol-2-chlorocarbonate in N,N-dimethylformaldehyde A solution was formed in 1150 g of amide, and 45 g of potassium hydroxide was added thereto, and stirred and reacted at 45°C for 12 hours in a helium atmosphere, and then 1-[2-(trimethylsilyl)ethoxycarbonyl was added to the reaction system Oxygen] benzotriazole 35g, continue to stir for 1.2 hours, then precipitate in water, and wash the product 6 times with ethanol, and then place it in a vacuum drying oven at 67°C for 12 hours to obtain a carbonate-based ca...

Embodiment 3

[0047] A conductive plastic material, made of the following components by weight: 65 parts of polysulfide grafted carbonate-based carbazole-type ionomer, 8 parts of carboxylated fullerene, 3 parts of silane coupling agent KH5503, ethylene- 3 parts of vinyl acetate copolymer.

[0048] The preparation method of the polythioether grafted carbonate-based carbazole type ionomer comprises the steps:

[0049] 1) Dissolve 316g of 4,4'-bis(9-ethyl-3-carbazolevinyl)-1,1'-biphenyl and 100g of ethanol-2-chlorocarbonate in 1350g of N-methylpyrrolidone to form Solution, then add potassium carbonate 55g therein, in neon gas atmosphere, stir reaction at 50 ℃ for 13 hours, then add 1-[2-(trimethylsilyl)ethoxycarbonyloxy]benzo 40g of triazole, continued to stir for 1.5 hours, then precipitated in water, washed the product 7 times with ethanol, and then placed it in a vacuum drying oven at 70°C for 13 hours to obtain a carbonate-based carbazole-type ionomer;

[0050] 2) Dissolve 40 g of the ca...

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Abstract

The invention discloses a conductive plastic material, which is made of the following components in parts by weight: 60-70 parts of polysulfide grafted carbonate-based carbazole-type ionic polymer, 5-10 parts of surface-modified fullerene, 1-4 parts of coupling agent, 2-5 parts of toughening agent. The preparation method of the conductive plastic material comprises the following steps: S1, putting polysulfide grafted carbonate-based carbazole ionomer, surface modified fullerene, and coupling agent into a high-speed mixer in proportion, mixing until it is uniform, then put the toughening agent into the high-speed mixer and mix evenly again to obtain a compound; S2, pour the compound obtained in step S1 into a twin-screw extruder and extrude to obtain a finished conductive plastic material. The conductive plastic material disclosed by the invention has excellent anti-ultraviolet aging ability, strong mechanical properties and anti-electromagnetic interference ability, good processing fluidity and high conductivity.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a conductive plastic material and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of electronic technology, electronic products have sprung up into people's lives. The types and demands of electronic products are increasing, and the requirements for product components are becoming more and more lightweight, high-performance, and highly standardized. The housing material of electronic products has a great influence on the performance of electronic products. In order to ensure the normal operation of electronic products and avoid electromagnetic interference, metal materials with better conductivity have become the first choice for housing materials of electronic products. The disadvantages of high price and easy corrosion hinder the further development of electronic products. Therefore, seeking more effective ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L87/00C08L23/08C08K9/00C08K3/04C08K5/544C08G81/00
CPCC08G81/00C08L87/005C08L2201/08C08L2205/03C08L23/0815C08L23/0853C08K9/00C08K3/04C08K5/544
Inventor 董廷显李春山
Owner 东莞市宏昱新材料有限公司
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