HIGH-Z-ELEMENT-NATURAL LEATHER COMPOSITE X-RAY SHIELDING MATERIAL AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2020/252861

A1

A preparation method for a high-Z-element-natural leather composite material, comprising: immersing leather produced by a conventional tanning process in a salt solution containing a high Z element, and using a large amount of active functional groups in the leather to combine with high-Z-element ions so as to obtain a high-Z-element nanoparticle-natural leather composite X-ray shielding material. The preparation process has the advantages of being simple and controllable, having a rich raw material source, low prices, and mild reaction conditions, not needing special processing equipment, and facilitating industrial scale-up production. The prepared high-Z-element-natural leather composite material has a low density and a light mass, and the material has an excellent shielding performance and reduces secondary radiation. The material not only solves the shortcomings of poor mechanical properties of conventional polymer shielding materials, but also provides good wearing comfortability.

LIAO XUEPIN (CN)
WANG YAPING (CN)
LI QIAN (CN)
WANG YANAN (CN)
ZHOU JIANFEI (CN)
ZENG YUNHANG (CN)
HUANG XIN (CN)
SHI BI (CN)

PCT/CN2019/098976

December 24, 2020

August 02, 2019

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UNIV SICHUAN (CN)

G21F1/10

JP2001242288A	2001-09-07
JP2001242288A	2001-09-07
SU500735A1	1977-03-05
CN109461511A	2019-03-12
CN108997732A	2018-12-14
CN109887630A	2019-06-14

CHENGDU CENTRAL ASIA PATENT AGENCY CO., LTD (CN)

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