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Method for obtaining neutron shielding fabric by doping rare-earth element

A rare earth element and rare earth technology, applied in the field of neutron protection fabrics, can solve the problem of less application in the field of radiation protection, and achieve the effect of solving the problem of neutron radiation protection and improving the added value of textiles and rare earths

Inactive Publication Date: 2019-04-23
余姚市荣欣毛麻制品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] At present, the application range of rare earth is very wide, but it is still rarely used in the field of radiation protection, and rare earth compounds are grafted onto fabrics to obtain anti-neutron fabrics.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Firstly, the lanthanum oxide nanopowder is prepared by the precipitation method, and then 0.2% of the weight of the lanthanum oxide nanopowder is added to the lanthanum oxide nanopowder, and the surface is modified during the ball milling process to remove the surface energy , Eliminate surface static electricity and improve its dispersibility to obtain the required lanthanum oxide nanopowder;

[0032] (2) First, the textile is pre-irradiated with electron beam or plasma, and then the prepared lanthanum oxide nanopowder is grafted onto the processed textile; the energy generated by the accelerator used for the irradiation is 5Mev, the irradiation The dose rate is 80Gy / s;

[0033] (3) Finally, the neutron protective fabric can be obtained by baking.

Embodiment 2

[0035] (1) Firstly, the yttrium oxide nanopowder is prepared by the precipitation method, then 0.4% of the weight of the yttrium oxide nanopowder is added to the yttrium oxide nanopowder, and the surface is modified during the ball milling process to remove the surface It can eliminate surface static electricity and improve its dispersibility to obtain the required yttrium oxide nano powder;

[0036] (2) The textile is pre-irradiated with electron beam or plasma, and then the prepared yttrium oxide nanopowder is grafted onto the treated textile; the energy generated by the accelerator used for the irradiation is 5Mev, and the irradiation The dose rate is 80Gy / s;

[0037] (3) Finally, the neutron protective fabric can be obtained by baking.

Embodiment 3

[0039] (1) First adopt the precipitation method to prepare neodymium oxide nanopowder, then add 0.8% of the weight of the neodymium oxide nanopowder to the neodymium oxide nanopowder, and carry out surface modification during the ball milling process to remove the surface It can eliminate surface static electricity and improve its dispersibility to obtain the required neodymium oxide nanopowder;

[0040] (2) The neodymium oxide nanopowder prepared by doping the textile is irradiated on the textile through plasma; the energy generated by the accelerator used for the irradiation is 8Mev, and the irradiation dose rate is 90Gy / s;

[0041] (3) Finally, the neutron protective fabric can be obtained by baking.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a method for obtaining neutron shielding fabric by doping a rare-earth element. The method comprises the following steps: (1) a, performing electron beam or plasma pre-irradiation treatment on a textile, and grafting the rare-earth nano powder onto the treated textile; or b, doping rare-earth nano powder or rare-earth salt in the textile, and co-radiating the textile through the electronic beam or the plasma; and (2) finally baking to obtain the neutron shielding fabric. The flexible rare-earth neutron shielding fabric obtained by doping the rare-earth element is effective in shielding slow neutrons, thermal neutrons and intermediate-energy neutrons, and is obviously effective in shielding quick neutrons. The rare-earth element is grafted onto the textile, so that flexible neutron shielding is realized, and therefore, great significance is achieved for solving the neutron radiation shielding problem and improving the textile and rare-earth additional value.

Description

Technical field [0001] The invention relates to a neutron protective fabric, in particular to a method for obtaining a neutron protective fabric by doping rare earth elements. Background technique [0002] With the increasing crisis of fossil energy, the call for the development of clean energy is getting higher and higher. However, clean energy such as tidal energy, solar energy, wind energy, and biomass energy can only be used as supplementary energy. Nuclear energy is the main energy source of the future. Therefore, nuclear energy protection, especially personnel protection, is an important task. In radiation protection, neutron protection is a relatively difficult technology. The reason is that neutrons are not charged, have little effect with electrons, are not easily blocked by substances, and are difficult to protect. [0003] The research on fiber fabric shielding materials began in the 1970s, and now there are many types of fabric shielding materials, and they are mostl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M10/06
CPCD06M10/06
Inventor 周静
Owner 余姚市荣欣毛麻制品厂
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