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POE (Polyolefin Elastomer) calendering material for X-ray and gamma-ray protection and preparation method thereof

A technology of calendering materials and γ-rays, applied in the field of X-rays, can solve the problems of low-energy X-rays with large scattering, toxicity, and poor strength

Pending Publication Date: 2022-05-31
苏州沐兮新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead is mainly lead. Although the protective effect is excellent, it is toxic, has poor strength and has a large scattering of low-energy X-rays.

Method used

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  • POE (Polyolefin Elastomer) calendering material for X-ray and gamma-ray protection and preparation method thereof
  • POE (Polyolefin Elastomer) calendering material for X-ray and gamma-ray protection and preparation method thereof
  • POE (Polyolefin Elastomer) calendering material for X-ray and gamma-ray protection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation process of POE layered calendering material for X, gamma ray protection, comprising the following steps:

[0036] Modification: The powders of gadolinium oxide, bismuth, tungsten and tantalum with a particle size of 50 nm were placed in ethanol, and ultrasonically dispersed for 10 min. After that, octaaminophenyltrioxysilane was added, and magnetic stirring was conducted for 18 h. Centrifugation at a high speed, followed by washing twice with absolute ethanol, and then drying at 60 °C for 16 h to obtain modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders respectively;

[0037] Granulation: After the modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders and POE particles were melt-mixed in a ratio of 3:2, melt-mixed at 60 °C, and granulated after mechanical stirring for 2 hours. , respectively obtain modified gadolinium oxide POE particles, modified bismuth POE particles, modifi...

Embodiment 2

[0041] A preparation process of POE layered calendering material for X, gamma ray protection, comprising the following steps:

[0042] Modification: The powders of gadolinium oxide, bismuth, tungsten and tantalum with a particle size of 70nm were placed in ethanol, ultrasonically dispersed for 15min, then added octaaminophenyltrioxysilane, and magnetically stirred for 20h, and then at 9000r / min After centrifugation at a high speed, washed with absolute ethanol for 3 times, and then dried at 65 °C for 14 h to obtain modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders respectively;

[0043] Granulation: After the modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders and POE particles were melt-mixed in a ratio of 7:3, melt-mixed at 70 °C, and granulated after mechanical stirring for 3 hours. , respectively obtain modified gadolinium oxide POE particles, modified bismuth POE particles, modified tungst...

Embodiment 3

[0047] A preparation process of POE layered calendering material for X, gamma ray protection, comprising the following steps:

[0048] Modification: The powders of gadolinium oxide, bismuth, tungsten and tantalum with a particle size of 100 nm were respectively placed in ethanol, and ultrasonically dispersed for 20 min. After that, octaaminophenyltrioxysilane was added, and magnetic stirring was conducted for 24 h. The centrifugation was carried out at a speed of 100 °C, followed by washing twice with absolute ethanol, and then drying at 70 °C for 12 h to obtain modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders respectively;

[0049] Granulation: After the modified gadolinium oxide, modified bismuth, modified tungsten and modified tantalum powders and POE particles were melt-mixed in a ratio of 4:1, melt-mixed at 80 °C, and granulated after mechanical stirring for 4 hours , respectively obtain modified gadolinium oxide POE particles, ...

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Abstract

The invention discloses a POE calendering material for X and gamma ray protection and a preparation method thereof, and relates to the field of ray protection, the POE calendering material comprises 18%-28% of modified gadolinium oxide, 18%-28% of modified bismuth, 9%-16% of modified tungsten, 9%-16% of modified tantalum, and the balance POE particles; the POE calendering material for X-ray and gamma-ray protection is of a layered calendering plate-shaped structure or a mixed calendering plate-shaped structure. The preparation process comprises the steps of modification, granulation, hot-pressing plate forming and calendering forming. The POE calendering material has the advantages that the prepared POE calendering material for X and gamma ray protection has extremely high protection efficiency on rays with different energy intensities, meanwhile, the surface density is about 2.3 kg / m < 2 >, and compared with an existing ray protection material, the POE calendering material has the advantages of light weight and high efficiency.

Description

technical field [0001] The invention relates to the field of radiation protection, in particular to a POE calendering material for X and γ-ray protection and a preparation method thereof. Background technique [0002] The development of nuclear technology brings convenience to people, but also produces a lot of radiation hazards. Radiation protection products that are light, flexible and have excellent protective performance are the current research hotspots. Radiation protection materials are mainly divided into two types: lead-containing materials and lead-free materials. Lead is mainly based on lead. Although the protective effect is excellent, it is toxic, has poor strength and has a large scattering of low-energy X-rays. Lead-free materials mainly include composite materials made of rare earth elements and heavy metal compounds such as tin, tungsten, and bismuth, which have excellent protective effects and are lightweight and safe. [0003] In terms of radiation prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K9/06C08K3/22C08K3/08
CPCC08K9/06C08K3/22C08K3/08C08K2003/221C08K2003/0887C08L23/0815
Inventor 潘刚伟姚理荣陈亚
Owner 苏州沐兮新材料科技有限公司
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