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Flexible light X-ray protection material

A protective material and X-ray technology, applied in the field of functional polymer materials, can solve the problems of heavy X-ray protective materials, complicated wearing, and difficult to process, and achieve the effect of solving industry pain points, broad application prospects, and easy molding.

Pending Publication Date: 2022-05-27
邯郸派瑞电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of bulky, difficult to process and complicated wearing of X-ray protective materials in the prior art, the purpose of the present invention is to provide a preparation method of flexible and lightweight X-ray protective materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A flexible and lightweight X-ray protective material, which is prepared by the following method:

[0020] (1) Add 4 kg of polyacrylonitrile fibers into 120 L of DBU aqueous solution with a mass concentration of 5%, the bath ratio is 1:30, and perform a hydrolysis reaction at 80° C. for 2 hours to obtain carboxyl-containing modified fibers;

[0021] (2) Add the carboxyl-containing modified fiber obtained in step (1) into 120 L of PEI aqueous solution with a mass concentration of 1%, the bath ratio is 1:30, and perform amidation reaction at 60° C. for 1 hour to obtain a crosslinked fiber;

[0022] (3) Add the cross-linked fibers obtained in step (2) into 120L of 0.5% sodium hydroxide aqueous solution, and the hydrolysis reaction time is 0.5h at 80°C, and the bath ratio is 1:30 to obtain ions with high carboxyl content. exchange fiber;

[0023] (4) Add the ion-exchange fiber with high carboxyl content obtained in step (3) into 80 L of lead acetate aqueous solution with a ...

Embodiment 2

[0026] A flexible and lightweight X-ray protective material, which is prepared by the following method:

[0027] (1) Add 4 kg of polyacrylonitrile fibers into 200 L of 10% DBU aqueous solution with a bath ratio of 1:50, and perform a hydrolysis reaction at 100° C. for 4 hours to obtain carboxyl-containing modified fibers;

[0028] (2) Add the carboxyl-containing modified fiber obtained in step (1) into 200 L of PEI aqueous solution with a mass concentration of 10%, the bath ratio is 1:50, and perform amidation reaction at 100° C. for 3 hours to obtain a crosslinked fiber;

[0029] (3) Add the cross-linked fiber obtained in step (2) into 200L of 5% sodium hydroxide aqueous solution, and the hydrolysis reaction time is 2h at 100°C, and the bath ratio is 1:50 to obtain an ion-exchange fiber with high carboxyl content. fiber;

[0030] (4) Add the ion-exchange fiber with high carboxyl content obtained in step (3) into 200L of lead acetate aqueous solution with a lead ion concentra...

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PUM

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Abstract

The invention relates to a flexible light X-ray protection material, and belongs to the technical field of functional polymer materials. The method adopts a four-step process which comprises the following steps: (1) hydrolyzing a PAN material in a DBU solution to obtain carboxyl-containing modified fibers; (2) adding the modified fiber into a PEI aqueous solution to carry out amidation reaction, and forming a net structure among molecules by taking PEI as a cross-linking agent to enhance the breaking strength of the fiber; (3) further hydrolyzing the PAN material in a sodium hydroxide solution to obtain ion exchange fibers with high carboxyl content; and (4) loading lead ions onto the surface of the fiber material under the action of ion exchange to endow the fiber material with an X-ray protection function. The X-ray protection material has the advantages of being small in density, light in weight and easy to form, overcomes the defects that an existing lead protection suit is heavy to wear and simple in style, can provide more comfortable and diversified protection for workers working in the medical radiation environment, and has wide application prospects.

Description

technical field [0001] The invention relates to a flexible and lightweight X-ray protective material, which belongs to the technical field of functional polymer materials. Background technique [0002] X-rays are widely used in medical diagnosis, safety inspection, metal flaw detection and other fields. As its application becomes more and more widespread, the potential harm caused by it is gradually paid attention to. Long-term exposure to the X-ray environment will cause harm to the body, and in severe cases, it will induce cancer. [0003] At present, the common X-ray protective materials mainly include concrete, lead plate and polymer composite materials. Concrete is used to protect fixed targets. The lead plate is dense, heavy, difficult to process, complicated to wear, and limited in application. Polymer composite materials are made of X-ray protective materials by mixing metal or metal oxides with polymer materials. Such materials are prone to cracks due to poor c...

Claims

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Application Information

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IPC IPC(8): D06M11/00D06M11/38D06M15/61D06M13/35G21F1/10D06M101/28
CPCD06M11/00D06M11/38D06M15/61D06M13/35G21F1/106D06M2101/28Y02E60/10
Inventor 黄国庆陈兆文白亚楠宋刚祥范海明孙世操刘彦洋王力苗雷
Owner 邯郸派瑞电器有限公司