Nano SiC/epoxy coating material, and preparation method and application thereof

An epoxy coating and nano-technology, applied in the direction of epoxy resin coatings, coatings, etc., can solve problems such as power equipment failures, achieve the effects of accelerating charge dissipation, increasing flashover voltage, and efficient methods

Inactive Publication Date: 2020-01-24
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of the voltage level of power equipment, the breakdown phenomenon often occurs on the surface of the insulating material instead of the inside of the insulating material. The main reason is that the bulk breakdown of the insulating material requires a larger Therefore, the surface flashover phenomenon becomes the main cause of power equipment failure

Method used

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  • Nano SiC/epoxy coating material, and preparation method and application thereof
  • Nano SiC/epoxy coating material, and preparation method and application thereof
  • Nano SiC/epoxy coating material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of nano SiC / epoxy coating material, comprises:

[0033] Step 1: Put 5g of nano-SiC into the plasma fluidized bed device for powder treatment, turn on the vacuum pump, keep the chamber pressure at 50-100pa, and sequentially feed CF with a gas flow rate of 1slm 4 And 10slm of Ar, when a stable fluidized bed is formed in the reaction chamber, turn on the high-frequency AC power supply, the voltage is 10-15kV, the current is 10-15mA, and after 10-12min, the nano-SiC treated by plasma fluorination is obtained. .

[0034] Step 2: Add the nano-SiC treated by plasma fluorination to the E51 epoxy resin in an amount of 3% of the mass fraction of the E51 epoxy resin, and stir for 20 to 30 minutes with a vacuum mechanical stirrer with a speed of 1000r / min; Add methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator to the mixture, and the mass ratio of E51 epoxy resin, methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator is 1...

Embodiment 2

[0040] The preparation method of nano SiC / epoxy coating material, comprises:

[0041] Step 1: Put 5g of nano-SiC into the plasma fluidized bed device, turn on the vacuum pump, keep the chamber pressure at 50-100pa, and sequentially inject CF with a gas flow rate of 1slm 4 And 10slm of Ar, when a stable fluidized bed is formed in the reaction chamber, turn on the high-frequency AC power supply, the voltage is 10-15kV, the current is 10-15mA, and after 10-12min, the nano-SiC treated by plasma fluorination is obtained. .

[0042] Step 2: Add the nano-SiC treated by plasma fluorination to the E51 epoxy resin in an amount of 5% of the mass fraction of the E51 epoxy resin, and stir for 20 to 30 minutes with a vacuum mechanical stirrer with a speed of 1000r / min; Add methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator to the mixture, and the mass ratio of E51 epoxy resin, methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator is 100:85:1; The vacuu...

Embodiment 3

[0044] The preparation method of nano SiC / epoxy coating material, comprises:

[0045] Step 1: Put 5g of nano-SiC into the plasma fluidized bed device, turn on the vacuum pump, keep the chamber pressure at 50-100pa, and sequentially inject CF with a gas flow rate of 1slm 4 And 10slm of Ar, when a stable fluidized bed is formed in the reaction chamber, turn on the high-frequency AC power supply, the voltage is 10-15kV, the current is 10-15mA, and after 10-12min, the nano-SiC treated by plasma fluorination is obtained. .

[0046] Step 2: Add the nano-SiC treated by plasma fluorination to the E51 epoxy resin in an amount of 8% of the mass fraction of the E51 epoxy resin, and stir for 20 to 30 minutes with a vacuum mechanical stirrer with a speed of 1000r / min; Add methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator to the mixture, and the mass ratio of E51 epoxy resin, methyltetrahydrophthalic anhydride curing agent and DMP-30 accelerator is 100:85:1; The vacuu...

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PUM

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Abstract

The invention provides a nano SiC / epoxy coating material, and a preparation method and application thereof. The preparation method comprises the following steps: step 1, putting nano SiC into a plasmafluidized bed device for powder treatment, introducing CF4 and Ar, turning on a high-frequency alternating current power supply of the plasma fluidized bed device, setting current and voltage parameters, and carrying out treatment for a preset time to obtain nano SiC subjected to plasma fluorination treatment; and step 2, stirring and mixing the nano SiC subjected to plasma fluorination treatmentwith epoxy resin by adopting a vacuum mechanical stirrer, and continuing adding a curing agent and an accelerator for stirring and mixing to obtain the nano SiC / epoxy coating material. According to the method, after the nano SiC is subjected to plasma fluorination treatment, the epoxy composite coating is prepared. The flashover voltage of an insulator can be obviously improved by coating the insulator, and failure probability of power equipment is reduced.

Description

technical field [0001] The invention relates to the technical field of insulating material preparation, in particular to a nano-SiC / epoxy coating material, a preparation method and an application thereof. Background technique [0002] Insulators are widely used in various power equipment, and their main function is to fix and support current-carrying conductors, so as to form effective insulation between the conductors and the earth. However, with the continuous improvement of the voltage level of power equipment, the breakdown phenomenon often occurs on the surface of the insulating material instead of the inside of the insulating material. The main reason is that the bulk breakdown of the insulating material requires a larger Therefore, the flashover phenomenon along the surface has become the main cause of power equipment failure. [0003] Surface flashover seriously threatens the normal operation of power equipment, so it is of great significance to increase the flashov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/62
CPCC08K2201/011C09D7/62C09D163/00C08K9/00C08K9/04C08K3/34
Inventor 詹振宇律方成阮浩鸥谢庆郝留成张启哲吕品
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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