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Preparation method of two-component functional filler composite coating layer for space high-energy proton radiation protection

A high-energy proton and radiation protection technology, applied in coatings, nuclear power generation, epoxy resin coatings, etc., can solve problems such as limited effects, achieve simple methods, improve the ability to shield gamma rays and neutrons, and simplify the preparation process Effect

Active Publication Date: 2021-12-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for neutron protection, the effect of low Z is also limited

Method used

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  • Preparation method of two-component functional filler composite coating layer for space high-energy proton radiation protection
  • Preparation method of two-component functional filler composite coating layer for space high-energy proton radiation protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Preparation of composite powder

[0031] Mix gadolinium oxide and tungsten with a mass ratio of 1:1 and pour them into a ball mill jar so that the ball-to-material ratio in the ball mill jar is 2:1, put the ball mill jar into the ball mill, and use a speed of 200rpm under normal pressure , ball milling for 12 hours, after the ball milling, take out the ball material, separate the ball material, and obtain a composite powder with a core-shell structure;

[0032] 2. Composite powder

[0033] Mix the composite powder obtained above with epoxy resin, wherein the mass fraction of the composite powder is 10%, use a three-roll mill to fully grind and mix, and the grinding time is 10 minutes. After the grinding is completed, the mixed powder is sprayed The obtained slurry was coated on the surface of the protected object to form a coating with a thickness of 100 μm, and the coating was placed in a vacuum drying oven and dried at 30° C. for 6 hours to obtain a composite coat...

Embodiment 2

[0036] 1. Preparation of composite powder

[0037] Mix the erbium oxide and tantalum with a mass ratio of 2:1 and pour it into the ball mill jar so that the ball-to-material ratio in the ball mill jar is 2:1, put the ball mill jar into the ball mill, and use a rotating speed of 200rpm under the condition of Ar protection , ball milling for 24 hours, after the ball milling, take out the ball material, separate the ball material, and obtain a composite powder with a core-shell structure;

[0038] 2. Composite powder

[0039] Mix the composite powder obtained above with epoxy resin, wherein the mass fraction of the composite powder is 30%, use a three-roll mill to fully grind and mix, and the grinding time is 10 minutes. The mixed slurry was coated on the surface of the protected object to form a coating with a thickness of 500um, and the coating was placed in a vacuum drying oven and dried at 50°C for 8 hours to obtain a composite coating.

Embodiment 3

[0041] 1. Preparation of composite powder

[0042] Mix cerium oxide and bismuth elemental substances with a mass ratio of 5:1 and pour them into a ball mill jar, so that the ball-to-material ratio in the ball mill jar is 2:1, put the ball mill jar into the ball mill, and use a rotating speed of 400rpm under the protection of Ar , ball milling for 24 hours, after the ball milling, take out the ball material, separate the ball material, and obtain a composite powder with a core-shell structure;

[0043] 2. Composite powder

[0044] Mix the composite powder obtained above with epoxy resin, wherein the mass fraction of the composite powder is 30%, use a three-roll mill to fully grind and mix, and the grinding time is 10 minutes. The mixed slurry was coated on the surface of the protected object to form a coating with a thickness of 500um, and the coating was placed in a vacuum drying oven and dried at 50°C for 8 hours to obtain a composite coating.

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Abstract

The invention discloses a preparation method of a two-component functional filler composite coating layer for space high-energy proton radiation protection, and belongs to the technical field of functional material preparation. The problem that an existing shielding material cannot effectively shield radiation of space high-energy protons such as neutrons and gamma rays at the same time is solved. A rare earth metal oxide and a high-Z metal material are compounded through a ball milling process to form a core-shell structure, and then the composite particles and a resin matrix are compounded to prepare the anti-radiation coating layer. After the prepared core-shell structure composite particles are dispersed in the resin matrix, a multi-layer alternating structure of different materials can be formed on a microstructure, alternate penetration of rays in the material is achieved, the material has better space high-energy proton radiation protection capacity, and meanwhile the preparation technology of the multi-layer alternating material is simplified.

Description

technical field [0001] The invention relates to a preparation method of a two-component functional filler composite coating for space high-energy proton radiation protection, and belongs to the technical field of functional material preparation. Background technique [0002] When the spacecraft is flying in outer space, because it is out of the protection of the earth's atmosphere, the spacecraft is always working in the harsh space environment. Under many space environmental factors, high-intensity radiation is always the key factor affecting the performance and service life of spacecraft. According to the type of particles, space radiation can be divided into heavy ions, α particles, protons, electrons, neutrons, X-rays, γ-rays, etc. The damage of different types of particles to aerospace equipment is different in principle, so if If you want to protect the spacecraft well, you need to design materials for different types of particles for protection. [0003] In a comple...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/38C09D7/62
CPCC09D163/00C09D5/38C09D7/62C08K2003/221C08K2003/0887C08K9/10C08K3/22C08K3/08Y02E30/30
Inventor 吴晓宏李杨秦伟卢松涛洪杨
Owner HARBIN INST OF TECH
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