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Method for obtaining neutron protective fabric by doping rare earth elements

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

Inactive Publication Date: 2014-10-22
WUHAN TEXTILE UNIV
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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) The lanthanum oxide nano-powder is first prepared by precipitation method, and then 0.2% of the weight of the lanthanum oxide nano-powder is added to the lanthanum oxide nano-powder, and the surface is modified during the ball milling process to remove the surface energy. , to eliminate surface static electricity and improve its dispersion to obtain the desired lanthanum oxide nanopowder;

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

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

Embodiment 2

[0035] (1) First adopt the precipitation method to prepare yttrium oxide nanopowder, then add 0.4% sodium tripolyphosphate accounting for the weight of yttrium oxide nanopowder to the yttrium oxide nanopowder, and perform surface modification during the ball milling process to remove the surface Can eliminate surface static electricity and improve its dispersion to obtain the desired yttrium oxide nanopowder;

[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 irradiation is 5 Mev, 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 nano-neodymium oxide powder, then add sodium hexametaphosphate accounting for 0.8% of the weight of the neodymium oxide nano-powder to the neodymium oxide nano-powder, and perform surface modification during the ball milling process to remove the surface It can eliminate surface static electricity and improve its dispersion to obtain the required neodymium oxide nanopowder;

[0040](2) The neodymium oxide nanopowder prepared by doping textiles is co-irradiated on textiles by plasma; the energy generated by the accelerator used for irradiation is 8Mev, and the radiation 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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Abstract

The invention discloses a method for acquiring a neutron protective fabric by doping rare earth element. The method comprises the following steps: (1) a, conducting pre-irradiation treatment on a textile by electron beam or plasma, and grafting the rare earth nanometer powder to the treated textile; or b, doping a rare-earth nanometer powder or rare earth salt into the textile, and conducting co-irradiation on the textile by electron beam or plasma; and (2) finally baking to obtain the neutron protective fabric. The invention acquires the flexible neutron protective fabric by doping rare earth element; the neutron protective fabric can effectively prevent slow neutron, thermal neutron and intermediate neutron, and especially shows obvious effect on fast neutron protection. According to the invention, rare earth element is grafted onto the textile to realize the flexible neutron prevention; and the method has great significance to solve a problem of neutron radiation protection and improve the added value of textile and rare earth.

Description

technical field [0001] The invention relates to a neutron protection fabric, in particular to a method for obtaining a neutron protection fabric by doping rare earth elements. Background technique [0002] In the case of the increasingly crisis of fossil energy, the call for the development of clean energy is getting louder and louder. However, tidal energy, solar energy, wind energy, biomass energy and other clean 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, because neutrons are not charged, have almost no effect on 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 most of ...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06M10/06
Inventor 吴瑜杨杰于旻荣苏正夫蔡钢锋王志坚
Owner WUHAN TEXTILE UNIV
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