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Graphite carbon fiber composite conductive filler for grounding module and its preparation method and application

A grounding module and fiber composite technology, which is applied in the direction of connecting contact materials, etc., can solve the problems of low grounding resistance reduction effect, difficult soil contact and high surface hardness, etc. rate effect

Active Publication Date: 2016-06-08
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of grounding module can play a certain role in grounding resistance reduction, but it has high strength and high surface hardness, and it is difficult to contact the soil closely, and often leaves gaps, which greatly reduces the effect of grounding resistance reduction.

Method used

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  • Graphite carbon fiber composite conductive filler for grounding module and its preparation method and application
  • Graphite carbon fiber composite conductive filler for grounding module and its preparation method and application
  • Graphite carbon fiber composite conductive filler for grounding module and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0034] In this embodiment, a graphite carbon fiber composite conductive filler for a grounding module is prepared from the following raw materials in weight percentage:

[0035]

[0036] The preparation method of graphite carbon fiber composite conductive filler for above-mentioned grounding module comprises the following steps (such as figure 1 shown):

[0037] Calcining the carbon fibers at a high temperature of 300°C for 30 minutes, soaking in concentrated sulfuric acid for 4 hours, washing and drying to obtain oxidized carbon fibers;

[0038] Add the chemical dispersant in water, ultrasonically oscillate and disperse, then add the oxidized carbon fiber, ultrasonically oscillate and disperse to obtain dispersion 1;

[0039] After the dispersion 1 was centrifuged at 1500r / min at a low speed for 0.5h, the upper layer liquid was taken to obtain the dispersion 2;

[0040] Add the graphite powder into the dispersion 2, and disperse with ultrasonic vibration under stirring t...

Embodiment 2

[0044] In this embodiment, a graphite carbon fiber composite conductive filler for a grounding module is prepared from the following raw materials in weight percentage:

[0045]

[0046] The preparation method of the graphite carbon fiber composite conductive filler for the above-mentioned grounding module comprises the following steps:

[0047] Calcining the carbon fibers at a high temperature of 250°C for 20 minutes, soaking in concentrated sulfuric acid for 3 hours, washing and drying to obtain oxidized carbon fibers;

[0048] Add the chemical dispersant in water, ultrasonically oscillate and disperse, then add the oxidized carbon fiber, ultrasonically oscillate and disperse to obtain dispersion 1;

[0049] After the dispersion 1 was centrifuged at 1000r / min at low speed for 0.1h, the upper layer liquid was taken to obtain the dispersion 2;

[0050] Add the graphite powder into the dispersion 2, and disperse with ultrasonic vibration under stirring to obtain the dispers...

Embodiment 3

[0053] In this embodiment, a graphite carbon fiber composite conductive filler for a grounding module is prepared from the following raw materials in weight percentage:

[0054]

[0055] The preparation method of the graphite carbon fiber composite conductive filler for the above-mentioned grounding module comprises the following steps:

[0056] Calcining the carbon fibers at a high temperature of 350°C for 40 minutes, soaking in concentrated sulfuric acid for 5 hours, washing and drying to obtain oxidized carbon fibers;

[0057] Add the chemical dispersant in water, ultrasonically oscillate and disperse, then add the oxidized carbon fiber, ultrasonically oscillate and disperse to obtain dispersion 1;

[0058] After the dispersion 1 was centrifuged at 2000r / min at a low speed for 1h, the upper layer liquid was taken to obtain the dispersion 2;

[0059] Add the graphite powder into the dispersion 2, and disperse with ultrasonic vibration under stirring to obtain the dispersio...

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Abstract

The invention discloses a graphite carbon fiber composite conductive filler for a grounding module and a preparation method and application thereof. The graphite carbon fiber composite conductive filler for the grounding module is prepared from the following raw materials in percentage by weight: 1-4% of carbon fiber, 5-14% of graphite powder, 0.5-2.5% of chemical dispersing agents, 40-50% of a resin adhesive and balance of water. The graphite carbon fiber composite conductive filler for the grounding module has good conductivity and plasticity, the conductive filler is used for manufacturing the grounding module, the own electrical conductivity of the grounding module can be effectively improved, the surface hardness of the module can be effectively reduced, so that the combination compactness of the module and soil is improved, and the grounding resistance reducing capacity of the grounding module is greatly improved.

Description

technical field [0001] The invention relates to the field of safety grounding materials, in particular to a graphite carbon fiber composite conductive filler for a grounding module and a preparation method and application thereof. Background technique [0002] Lightning strike is a relatively serious natural disaster, and the lightning protection grounding of transmission lines is directly related to the safety and stability of the power system. [0003] At present, most of the grounding forms of transmission lines in my country are made of flat steel, round steel and other metals mixed with grounding modules. Traditionally, the conductive filler in the grounding module is mainly composed of graphite, electrolyte, etc., and these components are uniformly mixed and solidified with the conventional grounding module filler to form a grounding module. This kind of grounding module can play a certain role in grounding resistance reduction, but it has high strength and high surfa...

Claims

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Application Information

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IPC IPC(8): C08L33/04C08L61/06C08K9/00C08K9/02C08K9/04C08K7/06C08K3/04H01R4/66
Inventor 詹清华肖微吴焯军文武
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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