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Multifunctional nuclear radiation protection double-layer fabric and preparation method thereof

A double-layer fabric, multi-functional technology, applied in the field of nuclear radiation protection, can solve problems such as damage to wearing comfort, secondary radiation damage, difficult to clean, etc., to achieve excellent air permeability and moisture permeability, prevent secondary radiation, high The effect of the application foreground

Active Publication Date: 2020-06-05
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) For neutron protection, the possibility of more serious secondary gamma ray protection is not considered.
[0007] (2) Rubber radiation protection products have poor air permeability and moisture permeability, which will damage the wearing comfort and affect the work efficiency of nuclear personnel
[0008] (3) At present, radiation protection products have not taken into account oleophobicity, resulting in radioactive substances may remain in the product, which is not easy to clean, causing secondary radiation damage

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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  • Multifunctional nuclear radiation protection double-layer fabric and preparation method thereof
  • Multifunctional nuclear radiation protection double-layer fabric and preparation method thereof

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preparation example Construction

[0033] like figure 1 As shown, the preparation method of the multifunctional nuclear radiation protection double-layer fabric provided by the embodiment of the present invention comprises:

[0034] S101: Weaving staple fibers with neutron and gamma ray protection and temperature control functions into yarn to form two-ply yarns with neutron and gamma ray protection.

[0035] S102: Double-sided woven or knitted fabrics that protect against neutrons on one side and gamma rays on the other side.

[0036] S103: modify the surface of the prepared fabric to be oleophobic to obtain a double-layer fabric with common protection functions of air permeability, moisture permeability, temperature control, oleophobicity, and neutron and gamma rays.

[0037] As a preferred implementation of the present invention, the neutron protection short fiber in step S101 is any one of boron carbide short fiber, boron nitride short fiber and polymer composite short fiber, wherein the polymer in the pol...

Embodiment 1

[0044] The preparation method of the multifunctional nuclear radiation protection double-layer fabric provided by the embodiment of the present invention comprises the following steps:

[0045] (1) Blend boron nitride staple fiber and polyamide / boron nitride staple fiber into yarn with neutron protection function, and polyamide / bismuth oxide staple fiber and polyvinyl alcohol / lead tungstate coated paraffin microfiber Capsule staple fibers are blended to form yarns with gamma protection and temperature control.

[0046](2) The two kinds of yarns are made into a kind of fabric with main neutron protection on the outside and gamma ray protection and temperature control function on the inside by double-sided weaving or knitting process.

[0047] (3) The surface of the fabric is oleophobically modified with perfluorodecyltrichlorosilane to obtain a double-layer fabric with functions such as air permeability, moisture permeability, temperature control, oleophobicity, and joint prote...

Embodiment 2

[0049] The preparation method of the multifunctional nuclear radiation protection double-layer fabric provided by the embodiment of the present invention comprises the following steps:

[0050] (1) Blending boron carbide staple fiber with polyethylene terephthalate / boron carbide staple fiber into a yarn with neutron protection function, and combining polyethylene terephthalate / lead tungstate staple fiber with Polyvinyl alcohol / lead tungstate coated short fiber with paraffin wax microcapsules blended to form a yarn with gamma ray protection and temperature control functions.

[0051] (2) The two kinds of yarns are made into a kind of fabric with main neutron protection on the outside and gamma ray protection and temperature control function on the inside by double-sided weaving or knitting process.

[0052] (3) The surface of the fabric is oleophobically modified with polyhedral silsesquisilane to obtain a double-layer fabric with functions such as air permeability, moisture pe...

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 belongs to the technical field of nuclear radiation protection, and discloses a multifunctional nuclear radiation protection double-layer fabric and a preparation method thereof. According to a radiation protection principle and a specific environment of a nuclear-related place, the multifunctional radiation protection double-layer fabric is prepared; the protection efficiency of themultifunctional nuclear radiation protection double-layer fabric prepared by the method on thermal neutrons is greater than 90%, the protection efficiency on gamma rays with the energy of less than 150keV is greater than 30%, the air permeability is greater than 60mm / s, the moisture permeability is greater than 3000g / (m<2>.d), and heat is absorbed when the environment temperature is higher than 30 DEG C; and when the environment temperature is lower than 20 DEG C, the heat release and lipophobicity are higher than grade 4. The multifunctional radiation protection double-layer fabric preparedby the invention has a relatively high application prospect in the fields of nuclear operation, nuclear emergency and the like, and the novel preparation method which is simple and convenient to operate, stable in process and low in cost is provided.

Description

technical field [0001] The invention belongs to the technical field of nuclear radiation protection, and in particular relates to a multifunctional nuclear radiation protection double-layer fabric and a preparation method thereof. Background technique [0002] Currently, the closest prior art: [0003] Manual participation is required for nuclear-related process operations, equipment maintenance, and emergency response. After the human body is exposed to a certain dose of thermal neutrons and gamma rays, symptoms such as dizziness, headache, loss of appetite, and even serious damage to organs such as the stomach and gonads may occur; at the same time, strong radiation may damage human DNA, cause cell cancer, and have genetic effect. In order to protect nuclear personnel from excessive radiation, effective protective measures must be taken to minimize radiation hazards during normal operation of nuclear facilities and equipment, abnormal events and accidents. However, wear...

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 Applications(China)
IPC IPC(8): B32B9/00B32B9/04B32B27/02B32B27/30B32B27/36B32B27/34B32B27/20B32B27/12B32B33/00G21F1/12
CPCB32B5/024B32B5/026B32B5/08B32B5/26B32B33/00G21F1/125B32B2262/10B32B2262/14B32B2262/0223B32B2262/0284B32B2262/0261B32B2255/02B32B2255/10B32B2255/24B32B2250/20B32B2307/212B32B2307/724B32B2437/00B32B2571/00
Inventor 周元林张全平李银涛
Owner SOUTHWEAT UNIV OF SCI & TECH
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