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Silicon carbide lightning protection material and preparation method thereof

A lightning protection, silicon carbide technology, applied in protective equipment, chemical instruments and methods, protective clothing, etc., can solve problems such as inability to meet, protection function failure, thermal damage, etc., and achieve the effect of improving lightning protection performance and thermal conductivity.

Pending Publication Date: 2021-06-29
哈尔滨科友半导体产业装备与技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main lightning protection methods include spraying metal, pasting metal foil and metal mesh, etc. These methods can only reduce the damage of lightning energy to aircraft and other structures to a certain extent, but because lightning energy will instantly generate high temperatures above 3000 °C, Instant sublimation of the metal protective layer, resulting in failure of the protective function, causing severe thermal damage to the carbon fiber reinforced epoxy resin-based composite material, which cannot meet the demand for non-damage protection in the field of lightning protection

Method used

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  • Silicon carbide lightning protection material and preparation method thereof

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specific Embodiment approach 1

[0024] A preparation method of silicon carbide lightning protection material, comprising the steps of:

[0025] Step 1. Weigh 5 parts of silicon carbide and 95 parts of epoxy resin according to the parts by weight, add the weighed silicon carbide into the weighed epoxy resin under the condition of mechanical stirring, and stir at room temperature 10h, obtain silicon carbide epoxy resin solution, stand-by;

[0026] Step 2. Dip the carbon fiber into the epoxy resin solution to obtain the carbon fiber reinforced resin prepreg, and then use the hand lay-up method to lay the carbon fiber reinforced resin prepreg according to the cycle angles of 0°, 45°, 90°, -45°, and 0° A carbon fiber reinforced resin prepreg plate with a thickness of 2mm is ready for use;

[0027] Step 3. Take the extended metal mesh and immerse it in the silicon carbide epoxy resin solution obtained in step 1. Take it out and lay it on the carbon fiber reinforced resin prepreg plate prepared in step 2. Carry ou...

specific Embodiment approach 2

[0038] A preparation method of silicon carbide lightning protection material, comprising the steps of:

[0039] Step 1. Weigh 25 parts of silicon carbide and 75 parts of epoxy resin according to the parts by weight, add the weighed silicon carbide into the weighed epoxy resin under the condition of mechanical stirring, and stir at room temperature 12h, obtain silicon carbide epoxy resin solution, stand-by;

[0040] Step 2. Dip the carbon fiber into the epoxy resin solution to obtain the carbon fiber reinforced resin prepreg, and then use the hand lay-up method to lay the carbon fiber reinforced resin prepreg according to the cycle angles of 0°, 45°, 90°, -45°, and 0° A carbon fiber reinforced resin prepreg plate with a thickness of 1-4mm is ready for use;

[0041] Step 3. Take the extended metal mesh and immerse it in the silicon carbide epoxy resin solution obtained in step 1. Take it out and lay it on the carbon fiber reinforced resin prepreg plate prepared in step 2. Carry...

specific Embodiment approach 3

[0052] A preparation method of silicon carbide lightning protection material, comprising the steps of:

[0053] Step 1. Weigh 10 parts of silicon carbide and 90 parts of epoxy resin according to the parts by weight, add the weighed silicon carbide into the weighed epoxy resin under the condition of mechanical stirring, and stir at room temperature 12h, obtain silicon carbide epoxy resin solution, stand-by;

[0054] Step 2. Dip the carbon fiber into the epoxy resin solution to obtain the carbon fiber reinforced resin prepreg, and then use the hand lay-up method to lay the carbon fiber reinforced resin prepreg according to the cycle angles of 0°, 45°, 90°, -45°, and 0° A carbon fiber reinforced resin prepreg plate with a thickness of 1-4mm is ready for use;

[0055] Step 3. Take the extended metal mesh and immerse it in the silicon carbide epoxy resin solution obtained in step 1. Take it out and lay it on the carbon fiber reinforced resin prepreg plate prepared in step 2. Carry...

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Abstract

The invention discloses a silicon carbide lightning protection material and a preparation method thereof, and belongs to the technical field of lightning protection material preparation. The technical problem to be solved by the invention is to improve the heat-conducting property. The preparation method comprises the following steps: respectively weighing 5-25 parts by weight of silicon carbide and 75-95 parts by weight of epoxy resin, adding the weighed silicon carbide into the weighed epoxy resin under the condition of mechanical stirring, conducting stirring at normal temperature for 10-12 hours to obtain a silicon carbide epoxy resin solution, immersing carbon fibers into the epoxy resin solution to obtain a carbon fiber reinforced resin prepreg, then laying the carbon fiber reinforced resin prepreg into a carbon fiber reinforced resin prepreg plate by adopting a hand lay-up method, immersing a metal extension net into the silicon carbide epoxy resin solution, taking out the metal extension net, laying the metal extension net on the carbon fiber reinforced resin prepreg plate prepared in the step 2, carrying out vacuum hot pressing, and then conducting cooling to room temperature to obtain the silicon carbide lightning protection material. The invention is used in the field of lightning protection materials.

Description

technical field [0001] The invention belongs to the technical field of preparation of lightning protection materials; in particular, it relates to a silicon carbide lightning protection material and a preparation method thereof. Background technique [0002] At present, the main lightning protection methods include spraying metal, pasting metal foil and metal mesh, etc. These methods can only reduce the damage of lightning energy to aircraft and other structures to a certain extent, but because lightning energy will instantly generate high temperatures above 3000 °C, Instantaneous sublimation of the metal protective layer results in failure of the protective function and severe thermal damage to the carbon fiber reinforced epoxy resin-based composite material, which cannot meet the demand for non-damage protection in the field of lightning protection. [0003] Silicon carbide has attracted widespread attention due to its high thermal conductivity, high temperature resistance...

Claims

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Application Information

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IPC IPC(8): B32B27/38B32B27/20B32B15/02B32B15/20B32B33/00B32B38/08B32B37/06B32B37/10
CPCB32B27/38B32B27/20B32B15/02B32B15/20B32B33/00B32B38/08B32B37/06B32B37/1018C08K3/34C08K7/06B32B2262/106B32B2260/021B32B2260/046B32B2255/26B32B2255/20B32B2262/103B32B2307/202B32B2307/302B32B2571/00C08L63/00
Inventor 不公告发明人
Owner 哈尔滨科友半导体产业装备与技术研究院有限公司
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