Applications of polyethylene composites doped with carbon nanotubes and nanotantalum for space charged particle radiation protection

Abstract

The invention discloses polyethylene composite material mixed with a carbon nano tube and nanometer tantalum and used for space charged particle radiation protection, a preparation method and application of the polyethylene composite material mixed with the carbon nano tube and the nanometer tantalum and used for the space charged particle radiation protection, and relates to the field of composite materials used for the space charged particle radiation protection and a preparation of the composite materials used for the space charged particle radiation protection. The problems that in radiation protection materials prepared and obtained by an existing radiation protection material method, an aluminum protection layer is large in density, and therefore using weight is large, polyethylene is adopted as the radiation protection materials, heat stability of the polyethylene is poor, and using range of the polyethylene is limited are solved. The polyethylene composite material mixed with the carbon nano tube and the nanometer tantalum and used for the space charged particle radiation protection is prepared by polyethylene resin, the carbon nano tube, the nanometer tantalum and coupling reagents. The preparation method comprises a first step of mixing the carbon nano tube, the nanometer tantalum and the coupling reagents to obtain a modified carbon nano tube and modified nanometer tantalum, and a second step of carrying out hot-pressing after mixing the modified carbon nano tube, the modified nanometer tantalum and the polyethylene resin. The material is used for defending space protons and electron radiation. The polyethylene composite material mixed with the carbon nano tube and the nanometer tantalum and used for the space charged particle radiation protection, the preparation method and the application of the polyethylene composite material mixed with the carbon nano tube and the nanometer tantalum and used for the space charged particle radiation protection are suitable for the field of the radiation protection.

Description

technical field

[0001] The invention relates to the field of applications of composite materials for space charged particle radiation protection. Background technique

[0002] For the design of spacecraft, space charged particle radiation protection materials have always been an important research topic, and the traditional radiation protection materials are mainly aluminum. In order to achieve the anti-radiation effect, the thickness of the aluminum protective layer must be increased, thereby increasing the weight of the spacecraft. The issue of lightweight spacecraft has always been a hot issue for designers. Studies have shown that hydrogen-containing light elements are more effective than heavy elements in resisting radiation damage, that is to say, the radiation protection efficiency increases with the decrease of atomic number. In theory, liquid hydrogen has the best protection efficiency, but it is not feasible in practical application. The hydrogen content of the ma...

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