Radiation protection composite material and preparation method thereof

A composite material and radiation protection technology, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve the problems of corrosion resistance, heavy aluminum-based radiation protection materials, secondary radiation, etc., to avoid Corrosion, excellent mechanical properties, effect of reducing mass

Active Publication Date: 2021-02-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]The present invention aims to solve the problem that aluminum-based radiation protection materials are heavy and not resistant to corrosion, which easily causes secondary radiation

Method used

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  • Radiation protection composite material and preparation method thereof
  • Radiation protection composite material and preparation method thereof
  • Radiation protection composite material and preparation method thereof

Examples

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preparation example Construction

[0042] combine figure 2 As shown, the present invention provides the preparation method of above-mentioned radiation protection composite material, comprises the steps:

[0043] Step S1, preparing polyetheretherketone-boron-containing nanocomposite material, and preparing aluminum-boron-containing nanocomposite material;

[0044] Step S2, stacking several composite materials in sequence according to the order of polyetheretherketone-boron-containing nanocomposite material, aluminum-boron-containing nanocomposite material, and polyetheretherketone-boron-containing nanocomposite material, and after hot-press molding, to obtain Radiation protection composites.

[0045] Specifically, in step S1, the preparation of polyetheretherketone-boron-containing nanocomposites includes: adding boron-containing nanomaterials to polyetheretherketone powder, and obtaining uniformly mixed doped powder by ball milling, and the doped powder The polyetheretherketone-boron-containing nanocomposit...

Embodiment 1

[0059] This embodiment provides a radiation protection composite material. The radiation protection composite material uses polyether ether ketone-boron-containing nanocomposite material as the surface layer, uses aluminum-boron-containing nanocomposite material as the middle layer, and the opposite sides of the middle layer Both are equipped with a surface layer, wherein the thickness of one side of the polyetheretherketone-boron-containing nanocomposite material is 1mm (that is, the thickness of the upper and lower layers is 1mm), and the thickness of the aluminum-boron-containing nanocomposite material is 3mm, and The boron-containing nanomaterials in polyetheretherketone-boron-containing nanocomposites and aluminum-boron-containing nanocomposites are both nano-boron carbide (hereinafter referred to as B 4 C), and B 4 The doping amount of C is 5wt%.

[0060] This embodiment also provides a method for preparing a radiation protection composite material, comprising the follo...

Embodiment 2

[0065] This embodiment provides a radiation protection composite material. The radiation protection composite material uses polyether ether ketone-boron-containing nanocomposite material as the surface layer, uses aluminum-boron-containing nanocomposite material as the middle layer, and the opposite sides of the middle layer Both are equipped with a surface layer, wherein the thickness of one side of the polyetheretherketone-boron-containing nanocomposite material is 1mm, the thickness of the aluminum-boron-containing nanocomposite material is 1mm, and the polyetheretherketone-boron-containing nanocomposite material and aluminum -The boron-containing nanomaterials in the boron-containing nanocomposite material are all nano boron nitride, and the doping amount of the nano boron nitride is 10wt%.

[0066] This embodiment also provides a method for preparing a radiation protection composite material, comprising the following steps:

[0067] 2.1 Add nano-boron nitride to polyether...

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Abstract

The invention provides a radiation protection composite material and a preparation method thereof; the radiation protection composite material takes a polyether-ether-ketone boron-containing nano composite material as a surface layer and takes an aluminum boron-containing nano composite material as an intermediate layer, and the surface layers are arranged on two opposite sides of the intermediatelayer. The composite material with a three-layer structure is formed by taking the polyether-ether-ketone boron-containing nano composite material as the surface layer and taking the aluminum boron-containing nano composite material as the intermediate layer, the polyether-ether-ketone boron-containing nano composite material can play a relatively good role in protecting the aluminum boron-containing nano composite material, and corrosion of the aluminum boron-containing nano composite material is avoided. And thus generating of secondary electrons and secondary radiation are prevented. The polyether-ether-ketone boron-containing nano composite material has excellent proton, neutron, electron and other space charged particle radiation protection performances, and can reduce the use amountof the aluminum boron-containing nano material in the composite material in order to reduce the mass of the radiation protection composite material.

Description

technical field [0001] The invention relates to the field of protection of electronic devices in a space environment, in particular to a radiation protection composite material and a preparation method thereof. Background technique [0002] With the vigorous development of my country's space activities and manned spaceflight, the research on the radiation environment and effects of space particles has become more and more important. In order to meet the needs of the development of my country's space industry and ensure the safety of spacecraft electronic components and astronauts, The demand for radiation protection materials is extremely urgent. In the space environment, in addition to charged particles, neutrons are also an important part. Neutrons are not charged and will not directly cause ionization and excitation of atoms. Therefore, neutrons have a strong ability to penetrate materials, devices and the human body. Neutrons can lose energy through nuclear reactions in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/08B32B15/20B32B27/18B32B27/28B32B37/02B32B37/06B32B37/10C08L61/16C08K3/38
CPCB32B15/08B32B15/20B32B27/18B32B27/28B32B37/02B32B37/06B32B37/10C08K3/38C08K2201/011C08K2003/385B32B2250/40B32B2307/212B32B2307/714B32B2307/718B32B2307/72B32B2307/202B32B2307/302C08L61/16
Inventor 李兴冀杨剑群应涛李红霞吕钢
Owner HARBIN INST OF TECH
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