Radiation-absorption fibre and preparing process

A technology of radiation absorption and preparation process, applied in the field of materials, can solve the problem of high-energy radiation that cannot be absorbed, and achieve the effect of high strength and good elasticity

Inactive Publication Date: 2008-02-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the anti-radiation materials commonly used by the people can only absorb low-energy radiation, and often cannot absorb high-energy radiation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The mass ratio of the mixture of radiation-absorbing components aluminum oxide, silicon oxide, calcium oxide, iron oxide, copper, antimony, and lead heavy metal nanopowder is 90:3.5:5.5:0.03:0.02:0.02:0.03, and the diameter is 1-30 nanometers. Polyacrylonitrile is used as fiber raw material, N,N-dimethylformamide is used as solvent, the mass ratio of the three is: 0.5:10:89.5, polyacrylonitrile is dissolved with N,N-dimethylformamide, and polyacrylonitrile is obtained. Acrylonitrile solution, adding the mixture of radiation-absorbing components into the polyacrylonitrile solution, ultrasonically treating the solution with ultrasonic dispersion equipment, the ultrasonic power is 200 watts, the frequency is 20 kHz, and the action time is 90 minutes. The spinning liquid is poured into the electrospinning equipment, and the electrospinning is performed to obtain radiation absorbing fibers with a fiber diameter of 35-150 nanometers.

Embodiment 2

[0024] The mass ratio of the mixture of radiation-absorbing components aluminum oxide, silicon oxide, calcium oxide, iron oxide, copper, antimony, and lead heavy metal nanopowder is 91:3:5:0.03:0.02:0.02:0.03, and the diameter is 10-20 nanometers. Polyvinyl chloride is used as fiber raw material, cyclohexanone is used as solvent, the mass ratio of the three is: 3:15:82, polyvinyl chloride is dissolved with cyclohexanone to obtain polyvinyl chloride solution, and the mixture of radiation absorbing components is added to polyvinyl chloride In the vinyl chloride solution, the solution is ultrasonically treated with ultrasonic dispersion equipment, the ultrasonic power is 800 watts, the frequency is 60 kHz, and the action time is 60 minutes. The spinning solution after ultrasonic treatment is poured into the electrospinning equipment for Electrospinning to obtain radiation absorbing fibers with a fiber diameter of 50-170 nanometers.

Embodiment 3

[0026] The mass ratio of the mixture of radiation-absorbing components aluminum oxide, silicon oxide, calcium oxide, iron oxide, copper, antimony, and lead heavy metal nanopowder is 93:3:2:0.03:0.03:0.02:0.02, and the diameter is 20-40 nanometers. Polyethylene is used as the fiber raw material, acetone is used as the solvent, and the mass ratio of the three is 1:20:79. Polyethylene is dissolved with acetone to obtain a polyethylene solution. The mixture of radiation-absorbing components is added to the polyethylene solution, and ultrasonic dispersion equipment is used to Ultrasonic treatment is carried out on the solution, the ultrasonic power is 1200 watts, the frequency is 100 kilohertz, and the action time is 10 minutes. The spinning solution after ultrasonic treatment is poured into the electrospinning equipment for electrospinning to obtain a fiber diameter of 85 ~300 nm radiation absorbing fibers.

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Abstract

The present invention relates to a radiation absorption fiber and the preparing process thereof. The fiber is nano-fiber containing nanometer radiation absorption ingredients. The preparing process comprises the following steps: firstly, adding radiation ingredients into a solution of nano-fiber raw material to prepare a spinning fluid containing nanometer wave-absorption ingredient; secondly, dispersing the spinning fluid with ultrasonic waves for electrostatic spinning to obtain nano-fiber containing radiation absorption ingredients. The radiation absorption fiber of the present invention can not only absorb radiation waves of low energy, but also widely absorb radiation of high energy. With excellent flexibility, strength and elasticity, the fiber can be weaved into miscellaneous product forms and applied to radiation-protective products, industrial products, aeronautic equipments and military products.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a radiation absorbing fiber and a preparation process thereof. Background technique [0002] Radiation-absorbing materials have become a major topic in materials science today. With the emergence of various high-radiation devices and the research on their wide application, the research on radiation-absorbing materials has attracted widespread attention. In various medical testing equipment, the wide use of high radiation sources is also a necessary material for radiation absorbing materials to protect the health of medical staff. [0003] At present, most of the anti-radiation materials commonly used by the people can only absorb low-energy radiation, and often cannot absorb high-energy radiation. The forms of anti-radiation materials commonly used in aerospace and national defense are also very single, and most of them exist in the form of coatings, thin films or solid parts. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10D01F6/62D01F6/04D01F6/10D01F6/06D01F6/60D01F6/78
Inventor 万玉芹何吉欢韩玲俞建勇孙顶陈宝珍
Owner DONGHUA UNIV
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