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Flexible lead-free X-ray protection material as well as preparation method and application thereof

A protective material and X-ray technology, applied in the field of flexible lead-free X-ray protective material and its preparation and application, can solve the problems of high Shore hardness, high Shore hardness of gloves, poor mechanical properties, etc., and reach the mixing temperature Appropriate, good protective performance, good mechanical properties

Active Publication Date: 2022-01-14
CHINA TEXTILE ACAD JIANGNAN BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the composite oxide precursor is complicated, high-temperature burning consumes a lot of energy, and the operation safety is low.
[0006] CN 110028794A discloses a tungsten-lead-doped silicone rubber-based flexible material with radiation shielding function and its preparation method, but the radiation protection material used contains lead, which is easy to cause environmental pollution and human injury; in addition, the prepared material has a Shore hardness High, poor mechanical properties, softness and strength of the material cannot be guaranteed
[0007] CN 112662020A discloses a method for preparing lead-free nuclear radiation protection gloves, but the type and size of the product are limited by existing molds, and the Shore hardness of the prepared gloves is relatively high, and the material is not soft enough, which affects the fine movements of the hands
[0008] CN 112225956A discloses a method for preparing a radiation-proof composite material and its application, but the radiation-proof composite material is relatively thick and prone to delamination, and the softness, density and Shore hardness of the material are not mentioned, and the radiation filler Uniformity of dispersion not stated

Method used

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  • Flexible lead-free X-ray protection material as well as preparation method and application thereof
  • Flexible lead-free X-ray protection material as well as preparation method and application thereof
  • Flexible lead-free X-ray protection material as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The flexible lead-free X-ray protective material in this embodiment consists of the following raw materials in parts by mass:

[0039]

[0040] In this embodiment, the radiation protection filler is nano-scale bismuth oxide powder, which accounts for about 74% of the total raw material mass.

[0041] Its preparation method is:

[0042] S1 masticating: Weigh the natural rubber with the formula amount, masticate in the internal mixer, the masticating temperature is 50°C, and the masticating time is 5min;

[0043] S2 One-step mixing: After the raw rubber is masticated, add active agent, anti-aging agent MB, and processing aids for mixing. The mixing temperature is 80°C, and the mixing time is 3 minutes;

[0044] S3 secondary mixing: After S2 is completed, add protective filler, naphthenic oil, plasticizer to the internal mixer, and continue mixing; mixing temperature is 80°C, mixing time is 3.5min; then transfer to open mixing The left and right cutters in the machine...

Embodiment 2

[0048] The flexible lead-free X-ray protective material in this embodiment consists of the following raw materials in parts by mass:

[0049]

[0050]

[0051] In this embodiment, the radiation protection filler is nano-scale bismuth oxide powder, which accounts for about 68% of the total raw material mass.

[0052] Its preparation method is:

[0053] S1 mastication: Weigh the rubber with the formula amount, masticate it in the internal mixer, the mastication temperature is 60°C, and the mastication time is 5min;

[0054] S2 one-step mixing: After the raw rubber is masticated, add active agent, anti-aging agent MB, and processing aids for mixing. The mixing temperature is 70°C, and the mixing time is 3 minutes;

[0055] S3 secondary mixing: After S2 is completed, add protective filler, hydroxy silicone oil, and plasticizer to the internal mixer, and continue mixing; the mixing temperature is 70°C, and the mixing time is 3.5 minutes; then transfer to the open mixer The ...

Embodiment 3

[0059] The flexible lead-free X-ray protective material in this embodiment consists of the following raw materials in parts by mass:

[0060]

[0061]

[0062] In this embodiment, the radiation protection filler is nano-scale bismuth oxide powder and nano-scale boron carbide powder, bismuth oxide accounts for about 45.4% of the total raw material mass, and boron carbide accounts for about 22.7% of the total raw material mass.

[0063] Its preparation method is:

[0064] S1 mastication: Weigh the natural rubber with the formula amount, masticate it in the internal mixer, the mastication temperature is 70°C, and the mastication time is 4min;

[0065] S2 one-step mixing: After the raw rubber is masticated, add active agent, anti-aging agent MB, and processing aids for mixing. The mixing temperature is 70°C, and the mixing time is 3 minutes;

[0066] S3 secondary mixing: After S2 is completed, add protective filler, hydroxy silicone oil, and plasticizer to the internal mixe...

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Abstract

The invention provides a flexible lead-free X-ray protection material as well as a preparation method and application thereof, and belongs to the technical field of compositions which take an organic high-molecular compound as a base material and take an inorganic substance as a mixed ingredient to realize specific performance. Rubber is used as a base material, 60-600 parts of a protective filler, 20-30 parts of an oiling agent and 1-3 parts of a vulcanizing agent are correspondingly added into every 100 parts of rubber, and the protective filler is any one or more of barium carbonate, bismuth oxide, boron carbide, tungsten powder and a rare earth element-containing compound. The flexible lead-free X-ray protection material is applied to the aspects of protective clothing and the like, and has the advantages of light weight, radiation resistance and the like.

Description

technical field [0001] The application relates to a flexible lead-free X-ray protective material and its preparation method and application, and belongs to the technical field of compositions that use organic polymer compounds as base materials and use inorganic substances as mixing ingredients to achieve specific performance. Background technique [0002] X-rays are between ultraviolet light and gamma rays with a frequency higher than 3×106s -1 , The electromagnetic wave with a wavelength of only 0.001-10nm covers the photon energy range from 250eV to several MeV, and is a high-energy photon flow. As a source of short-wave ionizing radiation, X-rays are widely used in national defense, industrial flaw detection, medical diagnosis and treatment, archaeology and other fields, among which medical X-rays usually have higher photon energy. However, excessive doses of X-ray radiation can damage human organs and tissues, threaten human health, and cause radiation diseases and eve...

Claims

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Application Information

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IPC IPC(8): C04B26/22
CPCC04B26/22C04B2201/50C04B2111/00025C04B24/26C04B22/06C04B24/08C04B24/42C04B24/36C04B22/02C04B2103/0068C04B2103/10
Inventor 赵晓曼杨国荣方虹天崔桂新许增慧吕水君王鸿博
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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