Liquid metal-hydrogel composite radiation protection material and preparation method and application thereof

Through liquid metal and hydrogel composite materials, the toxicity, weight and flexibility problems of lead-based radiation shielding materials are solved, and a non-toxic, lightweight, flexible and efficient radiation protection effect is achieved, which is suitable for lead-free radiation protection equipment in the medical field.

CN119529322BActive Publication Date: 2025-10-17SUZHOU UNIV
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Patent Information

Application Number
CN202411787351.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-10-17
Estimated Expiration
2044-12-06

AI Technical Summary

Technical Problem

Existing lead-based radiation shielding materials have problems such as toxicity, heavy weight, poor flexibility, and gradually reduced photon attenuation ability, which limit their application in the medical field.

Method used

Liquid metal and hydrogel composite materials are used to prepare liquid metal alloy particles and combine them with hydrogel to form a non-toxic, lightweight, flexible and adjustable radiation protection material. The multi-electron absorption limit of liquid metal and the high water content of hydrogel are utilized to enhance radiation shielding capabilities and improve biocompatibility.

Benefits of technology

The prepared liquid metal-hydrogel composite material has excellent radiation shielding performance, flexibility and biocompatibility, can adapt to different shapes and surfaces, provides better fit and comfort, and is suitable for lead-free radiation protection during radiological diagnosis and treatment.

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Abstract

The application discloses a liquid metal-hydrogel composite radiation protection material and a preparation method and application thereof, wherein indium, tin and bismuth are sequentially put into a flask in the order of low melting point to high melting point and glycerol is added for immersion; the mixture is stirred in an argon atmosphere by using a heating type magnetic stirrer; spherical liquid metal particles are taken out from the glycerol, and finally, water washing and drying are carried out to obtain liquid metal alloy particles; a PVA-H2O solution with a mass fraction of 15% and a PVA-DMSO solution with a mass fraction of 15% are prepared; the PVA-H2O solution, the PVA-DMSO solution and the liquid metal alloy particles are stirred and mixed according to a mass ratio, the mixed solution is poured into a mold after ultrasonic treatment and is frozen into glue to obtain a liquid metal-hydrogel composite material. The application realizes excellent biocompatibility, adjustable mechanical properties and high efficient radiation shielding capacity by combining the advantages of liquid metal and hydrogel, and can be used as a new type of lead-free radiation protection material.
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