Multifunctional protective material for space environment of space station and preparation method thereof

A space environment and protective material technology, applied in the field of multifunctional protective materials, can solve the problem of increasing the weight quota of space environment protective materials in space stations

Inactive Publication Date: 2014-05-07
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the two protective materials belong to different material categories and have very different performances, when carrying out space debris and radiation environment protection, different materials are selected for protection design, which greatly increases the use of space environment protection materials in the space station. weight quota
[0007] However, there is currently no multifunctional protective material for the space environment that can well meet the needs of the space station, which can significantly reduce the weight of the space protection material and significantly improve the safety of the space station.

Method used

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  • Multifunctional protective material for space environment of space station and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Preparation of Multifunctional Protective Material Based on Aluminum and Carbon Nanotube Arrays

[0026] First, a carbon nanotube array sample (1) is prepared using known prior art (existing steps), carbon nanotubes are grown on a substrate (1.1), and each of the vertically aligned carbon nanotube arrays (1.2) The growth direction of carbon nanotubes is basically perpendicular to the substrate.

[0027] Secondly, the carbon nanotube array is heated to a high temperature of 650-700°C under Ar gas or vacuum conditions, and aluminum chips are placed on the surface of the carbon nanotubes in advance. The weight of the aluminum chips is based on the volume of the carbon nanotube array × (80%-90%) × Calculated from the density of aluminum. Keep the high temperature at 650-700° C. for 20 minutes, then cool down to room temperature, take out the sample, and obtain the carbon nanotube metal composite material.

[0028] Thirdly, using mechanical cutting, grinding or...

Embodiment 2

[0030] Example 2 Preparation of multifunctional protective material of copper base and carbon nanotube array

[0031] First, a carbon nanotube array sample (1) is prepared using known prior art (existing steps), carbon nanotubes are grown on a substrate (1.1), and each of the vertically aligned carbon nanotube arrays (1.2) The growth direction of carbon nanotubes is basically perpendicular to the substrate.

[0032] Secondly, the carbon nanotube array is heated to a high temperature of 1100°C under Ar gas or vacuum conditions, and copper scraps are placed on the surface of the carbon nanotubes in advance. The weight of the copper scraps is calculated according to the volume of the carbon nanotube array × (80%-90%) × copper The density is calculated. Keep at a high temperature of 1100° C. for 30 minutes, then cool down to room temperature, and take out a sample to obtain a carbon nanotube metal composite material.

[0033] Thirdly, using mechanical cutting, grinding or lase...

Embodiment 3

[0035] Example 3 Preparation of multifunctional protective material of iron-based and carbon nanotube arrays

[0036]First, a carbon nanotube array sample (1) is prepared using known prior art (existing steps), carbon nanotubes are grown on a substrate (1.1), and each of the vertically aligned carbon nanotube arrays (1.2) The growth direction of carbon nanotubes is basically perpendicular to the substrate.

[0037] Secondly, the carbon nanotube array is heated to a high temperature of 1550°C under Ar gas or vacuum conditions, and iron filings are placed on the surface of the carbon nanotubes in advance, and the weight of the iron filings is calculated according to the volume of the carbon nanotube array × (80%-90%) × iron The density is calculated. Keep at a high temperature of 1550° C. for 30 minutes, then cool down to room temperature, and take out a sample to obtain a carbon nanotube metal composite material.

[0038] Thirdly, using mechanical cutting, grinding or laser...

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Abstract

The invention discloses a multifunctional protective material for a space environment of a space station. On the basis of a carbon nano tube array, the protective material is heated and melted through a metal material placed on the surface of the array or liquid metal or a liquid polymer base material is fully filled into a gap between carbon nano tubes by an infiltrating liquid polymer material poured on the surface of the array and using capillary action and then solidified. In addition, a preparation method of the protective material is also disclosed. The multifunctional protective material has high mechanical property on the basis of a single carbon nano tube, and the carbon nano tubes are oriented in the same direction, so that the simultaneously filled metal or polymer material plays a role of enhancing structural mechanical properties. The composite material has high mechanical property, and is a good material for preventing fragments, and a high-radiation protection material which is subsequently filled into the carbon nano tube also can play a good role of preventing high-energy particle radiation in a space. Thus, the material has the function of simultaneously protecting a plurality of space environments.

Description

technical field [0001] The present invention relates to the research field of space environment protection of spacecraft, in particular to a space environment multifunctional protection material used for space stations and utilizing the super high mechanical properties of carbon nanotubes as the structural main body, in the gaps between carbon nanotubes The preparation process of the multifunctional protective material prepared by filling metal or polymer into the carbon nanotube tube and filling it with high radiation protection material. Background technique [0002] The construction of a long-term on-orbit space station project is one of my country's national medium- and long-term major scientific and technological projects. Compared with other unmanned spacecraft, it is more important to ensure the safe operation of the space station because the space station is manned. [0003] During the orbital operation of the space station, due to the effects of the space environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C47/08C08L63/00C08K7/00C08K3/04C08K3/38C08L83/04C08L21/00
Inventor 刘宇明李蔓刘向鹏赵春晴姜利祥田东波徐坤博杨继运
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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