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Conductive plastic, preparation method thereof and shell

A conductive plastic and shell technology, applied in the field of conductive materials, can solve the problems of difficult resin matrix compatibility, easy agglomeration, and large carbon nanotubes, and achieve the effects of fine grain size, low cost, and improved powder activity

Active Publication Date: 2019-03-01
内蒙古信敏惠纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the good electrical conductivity of carbon nanotubes, due to their large aspect ratio and curling degree, carbon nanotubes are easy to agglomerate together, difficult to disperse, and difficult to be well compatible with the resin matrix
Therefore, current conductive plastics are still under research

Method used

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  • Conductive plastic, preparation method thereof and shell
  • Conductive plastic, preparation method thereof and shell
  • Conductive plastic, preparation method thereof and shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Add 2.6 g of melamine and 100 g of formaldehyde in a beaker, ultrasonically disperse for 30 min, then add 6.0 g of multi-wall wound carbon nanotubes that have been pre-milled (ball milling speed 400 rpm, time 4 h), stir well and pour into a high energy ball mill to continue high energy Ball mill (ball milling speed: 400rpm) for 24h, and then dry. The dried mixture was placed in a tube furnace under N 2 Carry out calcination at 600° C. for 1 h under the atmosphere, wash the product after natural cooling with 2 mol / L hydrochloric acid solution once, wash twice with deionized water, suction filter and dry to obtain nitrogen-doped carbon nanotubes. Nitrogen-doped carbon nanotubes and high-impact polystyrene resin particles are configured and mixed (wherein, based on the total mass of nitrogen-doped carbon nanotubes and high-impact polystyrene resin particles, the content of nitrogen-doped carbon nanotubes 3wt%), then the mixture is sent into parallel twin-screw extrusion g...

Embodiment 2

[0069] Add 3.72g of urea and 160g of formaldehyde in the beaker, ultrasonically disperse for 40min, then add 8.6g of pre-milled (ball milling speed 400rpm, time 4h) multi-wall winding carbon nanotubes, stir well and pour into the high energy ball mill to continue high energy Ball milled for 24h (ball milling speed is 400rpm) and then dried. The dried mixture was placed in a tube furnace under N 2 Carry out calcination at 700°C for 2 hours under the atmosphere, wash the product after natural cooling with 2mol / L hydrochloric acid solution once, wash twice with deionized water, suction filter and dry to obtain nitrogen-doped carbon nanotubes. Nitrogen-doped carbon nanotubes and high-impact polystyrene resin particles are configured and mixed (wherein, based on the total mass of nitrogen-doped carbon nanotubes and high-impact polystyrene resin particles, the content of nitrogen-doped carbon nanotubes 3wt%), then the mixture is sent into parallel twin-screw extrusion granulator fo...

Embodiment 3

[0071] Add 3.72g of urea and 160g of formaldehyde in the beaker, ultrasonically disperse for 40min, then add 8.6g of pre-milled (ball milling speed 400rpm, time 4h) multi-wall winding carbon nanotubes, stir well and pour into the high energy ball mill to continue high energy Ball milled for 24h (ball milling speed is 400rpm) and then dried. The dried mixture was placed in a tube furnace under N 2 Carry out calcination at 700°C for 2 hours under the atmosphere, wash the product after natural cooling with 2mol / L hydrochloric acid solution once, wash twice with deionized water, suction filter and dry to obtain nitrogen-doped carbon nanotubes. Nitrogen-doped carbon nanotubes are mixed with MAPE (maleic anhydride grafted polyethylene) resin particles (wherein, based on the total mass of nitrogen-doped carbon nanotubes and MAPE resin particles, the content of nitrogen-doped carbon nanotubes is 5wt% ), then the mixture is sent to a parallel twin-screw extrusion granulator for extrus...

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Abstract

The invention provides conductive plastic, a preparation method thereof and a shell. The conductive plastic is prepared from a resin substrate and nitrogen-doped carbon nanotubes, wherein the nitrogen-doped carbon nanotubes are dispersed in the resin substrate. As found by the inventor, the conductive plastic is simple in structure, and is easy to implement. The nitrogen-doped carbon nanotubes areuniformly dispersed in the resin substrate, so that a good conductive network is formed in the conductive plastic, and the conductive plastic has high conducting performance. Moreover, the bonding force between the nitrogen-doped carbon nanotubes and the resin substrate is high, so that the conductive plastic has a stable structure and long service life.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to conductive plastics, a preparation method thereof, and a housing. Background technique [0002] Conductive plastic is an ideal shielding material and can be used as an enclosure for electronic devices to achieve shielding. Compared with traditional conductive materials, it is lighter, easier to form and process, corrosion-resistant, easy to adjust resistance and lower total cost. Due to the good electrical conductivity of carbon nanotubes, due to their large aspect ratio and curling degree, carbon nanotubes are easy to agglomerate together, difficult to disperse, and difficult to be well compatible with the resin matrix. Therefore, current conductive plastics are still under research. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L51/06C08L67/02C08L69/00C08K9/04C08K3/04
CPCC08K9/04C08K2201/001C08K2201/011C08K2201/016C08L67/02C08K3/041C08L51/04C08L51/06C08L69/00
Inventor 朱亚坤丁天朋王浩然郭晓然樊振兴李金来
Owner 内蒙古信敏惠纳米科技有限公司
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