Preparation and coating method of total dose radiation shielding coating layer material

Abstract

The invention discloses a preparation and coating method of a total dose radiation shielding coating layer material. The method concretely comprises the following steps: uniformly mixing a high atomic number material with a high-molecular polymer to obtain a mixed coating A; uniformly mixing a low atomic number material with the high-molecular polymer to obtain a mixed coating B; and coating the mixed coating A on the surface layer of a device shell in order to form a high atomic number material layer, and coating the mixed coating B on the surface of the high atomic number material layer to form a low atomic number material layer. The method for preparing the total dose radiation shielding coating layer material and coating the inner wall of the product shell allows the coating layer of the coating layer material to stand up the emission stage of a spacecraft and in-orbit space environment, and the coating layer greatly improves the space total dose radiation environment resistance of the coated product.

Description

technical field [0001] The invention relates to the field of anti-total dose shielding of aerospace vehicles, in particular to a preparation and coating method of an anti-total dose shielding coating material. Background technique [0002] When the spacecraft is flying in space, the space heavy ions and high-energy particles in the space environment are absorbed by the components and stay in the components. As the total amount increases, the function and performance of the spacecraft will decrease with time. The gradual attenuation will eventually cause the spacecraft to fail to work normally and seriously affect the service life and reliability of the spacecraft. This situation is called the total dose effect. Measures to treat components to slow down or avoid this phenomenon are called anti-total dose hardening measures. The existing anti-total dose reinforcement method is generally to paste heavy metal materials such as lead skin or tantalum skin on the surface of compon...

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Problems solved by technology

The problem to be solved by the present invention is to overcome the bremsstrahlung problem existing in the above-mentioned existing reinforcement materials, thereby providing a kind of shielding coating material that can solve the bremsstrahlung problem and has a better anti-total dose effect and improve the adhesion of the coating material. Coating method of knot force

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