A graphene masterbatch for reinforcing copper-based materials and its preparation method and application method

An application method and graphene technology are applied in the field of preparation of graphene composite materials, which can solve the problems of complex process, difficult melting and dispersion, and high energy consumption, achieve simple process, improve mechanical properties, electrical and thermal conductivity, and energy consumption. low effect

Active Publication Date: 2018-08-24
山东酷品智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The obvious advantage is that it overcomes the difficulties of directly melting and dispersing graphene in copper, high energy consumption, and complicated processes, and is suitable for promoting large-scale production, thereby promoting the application of graphene in reinforced composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method and application method of a graphene masterbatch for reinforcing copper-based materials, specifically as follows:

[0031] (1) Dispersion of graphene and tin: Heat 2kg of tin in a high-temperature furnace to melt and remove impurities, then add 1kg of graphene into the high-temperature furnace, stir forward for a certain period of time in a nitrogen atmosphere, and then reversely stir After a certain period of time, after stirring repeatedly four times, gradually reduce the stirring speed until it stops, and let it stand for 20 minutes, move it into the spinneret, and spray it through the nozzle set upwards of the spinneret to form a filamentous jet stream; the spray pressure is 1MPa, and so on. Spray 3 times in a filamentary form, and evenly disperse the graphene in the metal tin by spraying and drawing;

[0032] (2) Extrusion molding: Extrude the dispersion of graphene and metal tin obtained in step (1), set the mold temperature at 180~190°C, and ...

Embodiment 2

[0037] A preparation method and application method of a graphene masterbatch for reinforcing copper-based materials, specifically as follows:

[0038] (1) Dispersion of graphene and tin: Heat 2kg of tin in a high-temperature furnace to melt and remove impurities, then add 1kg of graphene into the high-temperature furnace, stir forward for a certain period of time in a nitrogen atmosphere, and then reversely stir After a certain period of time, after stirring repeatedly four times, gradually reduce the stirring speed until it stops, and let it stand for 20 minutes, move it into the spinneret, and spray it through the nozzle set upwards of the spinneret to form a filamentous jet stream; the spray pressure is 1MPa, and so on. Spray 3 times in a filamentary form, and evenly disperse the graphene in the metal tin by spraying and drawing;

[0039] (2) Extrusion molding: Extrude the dispersion of graphene and metal tin obtained in step (1), set the mold temperature at 180~190°C, and ...

Embodiment 3

[0044] A preparation method and application method of a graphene masterbatch for reinforcing copper-based materials, specifically as follows:

[0045] (1) Dispersion of graphene and tin: heat 3kg of tin in a high-temperature furnace to melt, and remove impurities, then add 1kg of graphene into the high-temperature furnace, and stir forward for a certain period of time in a nitrogen atmosphere, then reversely stir For a certain period of time, after stirring repeatedly four times, gradually reduce the stirring speed until it stops, and let it stand for 30 minutes, move it into the spinneret, and spray it through the nozzle set upwards of the spinneret to form a filamentous jet stream; the spray pressure is 2MPa, and so on. Spray 4 times in a filamentary form, and evenly disperse the graphene in the metal tin by spraying and drawing;

[0046] (2) Extrusion molding: Extrude the dispersion of graphene and metal tin obtained in step (1), set the mold temperature at 180~190°C, and f...

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Abstract

The invention belongs to the field of master batch preparation of graphene reinforced composite materials and provides a graphene master batch used for reinforcing a copper-base material, a preparation method and application. The graphene master batch is characterized by comprising metal tin fine wire graphene. The preparation method of the wire graphene is provided and comprises the steps that the graphene and a small quantity of tin are melted and evenly mixed, the graphene is evenly dispersed in the tin through repeated jetting and wire drawing, and then wire drawing stage by stage is conducted through a wire drawing machine to form the fine wire graphene master batch with high graphene concentration. The application method of the wire graphene master batch is further provided and comprises the steps that in use, the wire graphene master batch is directly rotationally twined with a linear copper wire, and the wire graphene master batch and the copper wire are twined together, so that the strength, electrical conductivity and thermal conductivity of the copper wire are greatly promoted. The graphene master batch used for reinforcing the copper-base material, the preparation method and the application method have the remarkable advantages that the defects that the graphene is directly smelted in copper, so that the dispersing difficulty is large, energy consumption is high, and the technology is complex are overcome, the graphene master batch is suitable for promoting of mass production, and therefore application of the graphene in the reinforced composite materials is promoted.

Description

technical field [0001] The invention relates to the field of preparation of graphene composite materials, in particular to a graphene masterbatch for reinforcing copper-based materials, a preparation method and an application method. Background technique [0002] Graphene, the thinnest two-dimensional material, has a single layer thickness of only 0.335nm. Scientists have studied it since the beginning of the 20th century. Until 2004, Andre Geim and Konstantin Novoselov, physics experts at the University of Manchester in the United Kingdom, prepared single-layer graphene using scotch tape bonding technology, but it did not cause a sensation at that time; in 2005, the same Researchers at the University of Manchester and Columbia University confirmed that the quasiparticles of graphene are massless Dirac fermions, which sparked an upsurge in graphene research. [0003] Graphene is a two-dimensional new material composed of carbon atoms. Carbon atoms adopt sp2 hybridization t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/06C22C49/14
CPCC22C47/064C22C49/14
Inventor 陈庆王镭迪曾军堂
Owner 山东酷品智能科技有限公司
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