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Polyethylene composite material doped with carbon nanotubes for space proton radiation protection and its preparation method and application

A technology of carbon nanotubes and proton radiation, applied in reactors, shielding, nuclear engineering, etc., can solve problems such as poor thermal stability and restricted use range, and achieve the effects of improved thermal stability, improved proton protection efficiency, and reduced density

Active Publication Date: 2015-08-26
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem that existing polyethylene materials are used as radiation protection materials due to their poor thermal stability, which seriously restricts their application range, and provides doped carbon nanotubes for space proton radiation protection Polyethylene composite material and its preparation method and application

Method used

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  • Polyethylene composite material doped with carbon nanotubes for space proton radiation protection and its preparation method and application
  • Polyethylene composite material doped with carbon nanotubes for space proton radiation protection and its preparation method and application
  • Polyethylene composite material doped with carbon nanotubes for space proton radiation protection and its preparation method and application

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specific Embodiment approach 1

[0022] Specific Embodiment 1: This embodiment is a polyethylene composite material doped with carbon nanotubes for space proton radiation protection, which is composed of 1 to 100 parts of polyethylene resin and 1 to 50 parts of carbon nanotubes in parts by weight. The nanotube and 0.5-20 parts of coupling agent are prepared.

[0023] Carbon nanotubes are added to the polyethylene composite material doped with carbon nanotubes for space proton radiation protection in this embodiment, which can better prevent polyethylene cracking and improve the proton protection effect of the material.

[0024] This embodiment has the following advantages: 1. The radiation protection material prepared by the preparation method of the polyethylene composite material doped with carbon nanotubes for space proton radiation protection provided by this embodiment, because polyethylene is used as the radiation protection material The protective material greatly reduces its density, effectively solvi...

specific Embodiment approach 2

[0025] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the composite material is composed of 20-95 parts of polyethylene resin, 2-30 parts of carbon nanotubes and 1 part by weight. It is prepared from 15 parts to 15 parts of coupling agent. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0026] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the density of the polyethylene resin is 0.900 g / cm 3 ~0.980g / cm 3 . Others are the same as in the first or second embodiment.

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Abstract

The invention provides a polyethylene composite material for a doped carbon nanotube for space proton radiation protection as well as a preparation method and an application of the polyethylene composite material and relates to the field of composite materials for space proton radiation protection and the preparation method thereof. The invention aims to solve problems that the weight of an aluminum protective layer of a radiation protection material prepared from the traditional radiation protection material preparing method is large due to large density and the use range of the radiation protection material is poorer in thermal stability when a polyethylene material is used as the radiation protection material. The polyethylene composite material for the doped carbon nanotube for space proton radiation protection is prepared from a polyethylene resin, a carbon nanotube and a coupling agent in part by weight. The preparation method comprises the following steps: (1), mixing the carbon nanotube and the coupling agent to obtain a modified carbon nanotube; and (2), mixing the modified carbon nanotube and the polyethylene resin and hotly pressing the modified carbon nanotube and the polyethylene resin. The polyethylene composite material for the doped carbon nanotube for space proton radiation protection is applied to protection of proton radiation. The polyethylene composite material for the doped carbon nanotube for space proton radiation protection, provided by the invention, is suitable for the field of radiation protection and aerospace.

Description

technical field [0001] The invention relates to the field of composite material for space proton radiation protection, its preparation method and application. Background technique [0002] For the design of spacecraft, space proton 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/06C08K9/04C08K7/00C08K3/04B29C43/58G21F1/10
Inventor 李兴冀高锋杨剑群何世禹
Owner HARBIN INST OF TECH
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