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Composite fiber filament for nuclear radiation protection and production method of composite fiber filament

A composite fiber and fiber filament technology, applied in textiles, papermaking, yarn and other directions, can solve the problems of low tensile strength of lead fiber filament and lead-based alloy fiber filament, difficulty in automatic weaving, low product strength, etc., and achieve high yield , Excellent nuclear radiation protection performance, the effect of improving uniformity

Inactive Publication Date: 2014-04-30
扬州锦沃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tensile strength of lead fiber and lead-based alloy fiber is very low. It is difficult to directly weave automatically. The strength of the woven product is not high. If no fixing measures are taken, it will not be able to be used normally.
Tungsten and tantalum elements have good radiation protection properties, but they are mostly used as functional particles doped in the matrix material, and radiation protection products based on tungsten alloy and tantalum alloy fiber wires are rarely reported.

Method used

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  • Composite fiber filament for nuclear radiation protection and production method of composite fiber filament
  • Composite fiber filament for nuclear radiation protection and production method of composite fiber filament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Prepare a lead-based alloy filament with a diameter of 0.5mm and a certain degree of flexibility and tensile strength as the inner core, select 1K carbon fiber as the cladding layer, and perform core-spun braiding on a 16-spindle high-speed braiding machine to obtain lead for nuclear radiation protection. Alloy fiber / carbon fiber composite filament.

[0019] After the composite fiber filaments are tightly woven, their radiation protection performance is tested on a NaI spectrometer, and the radioactive source is Cs-137. After testing, the radiation protection ratio is -6.3%.

Embodiment 2

[0020] Example 2 : The lead-based alloy long fiber wire with a diameter of 0.3mm and the tungsten alloy fiber wire with a diameter of 0.2mm are combined as the inner core, and high-density polyethylene fiber is used as the cladding layer, and core-spun braiding is carried out on a 16-spindle high-speed braiding machine. A lead-based alloy fiber / tungsten alloy fiber / polyethylene fiber composite fiber filament for nuclear radiation protection is obtained. The radiation protection performance test method is as in Example 1. After testing, the radiation protection ratio is -7.4%.

Embodiment 3

[0021] Example 3 : The lead-based alloy long fiber wire with a diameter of 0.3mm is used as the inner core, polyamide fiber is used as the first layer of the coating layer, and polytetrafluoroethylene fiber is used as the second layer, which is carried out twice on a 16-spindle high-speed braiding machine Core-spun braiding to obtain lead-based alloy fiber / polyamide fiber / polytetrafluoroethylene fiber composite fiber filaments for nuclear radiation protection. The radiation protection performance test method is as in Example 1. After testing, the radiation protection ratio is -5.1%.

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Abstract

The invention discloses a composite fiber filament nuclear radiation protection and a production method of composite fiber filament and relates to the technical field of nuclear radiation protection. Core knitting is performed on a knitter, and a material covered during knitting is made of carbon fiber, high density polyethylene fiber, polytetrafluoroethylene fiber, polyphenylene sulfide fiber, polyarmide fiber, polyester fiber or polyimide fiber, a coating material is made from the carbon fiber, the high density polyethylene fiber, the polytetrafluoroethylene fiber, the polyphenylene sulfide fiber, the polyarmide fiber, the polyester fiber or the polyimide fiber, and thereby the composite fiber filament with a nuclear radiation protection function is formed. The composite fiber filament comprises a metal fiber core and at least one outer knitted coating layers which are in net structures. The composite fiber filament is simple and reasonable in technology, high in yield, and beneficial to follow-up weaving for weaving the composite fiber filament into fabric via a weaving technology so as to form clothes with the nuclear radiation protection function.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation protection, in particular to the technical field of production of composite fiber filaments for nuclear radiation protection. Background technique [0002] Nuclear science and technology have been widely used in many fields such as national defense, energy, industry, and medical treatment, bringing huge economic and social benefits, and increasing people's chances of being exposed to and threatened by various radiations. Nuclear and radiation safety issues has become increasingly prominent and has received much attention. Radiation protection materials and equipment are the key to ensuring the safety of workers in radiation sites and the public, and are also an effective means to resolve the crisis of nuclear accidents. They are an important guarantee for military and civilian radiation safety protection and are in urgent need. [0003] my country has accumulated certain technology and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/12D02G3/36
Inventor 常树全杨东辉戴耀东于丰源于徐生
Owner 扬州锦沃科技有限公司
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