皮革科学与工程2024，Vol.34Issue(3)：9-16,8.DOI:10.19677/j.issn.1004-7964.2024.03.002
钆-钡/天然皮革复合可穿戴X射线屏蔽材料的制备及性能
Preparation and Performance of Gd-Ba/Natural Leather Wearable X-ray Shielding Composites
摘要
Abstract
To enhance the shielding performance of materials without significantly increasing the thickness,barium(Ba)was initially incorporated into the hierarchical structure of natural leather(NL)through the equal volume impregnation strategy(Ba/NL),and the waterborne polyurethane finishing agent with well-dispersed nano-gadolinium-oxide(Gd2O3)was uniformly coated on the grain surface of Ba/NL to fabricate X-ray shielding material(Gd-Ba/NL).X-ray shielding performance results showed that the 1.5-mm-thick Gd1.80-Ba2.32/NL could provide an equivalent level of shielding efficiency to 2.6-mm-thick Ba2.32/NL.The synergistic effect of Gd and Ba contributed to a shielding efficiency exceeding 70％for the X-rays in the energy range of 16-48 keV,and provided a comparable mass attenuation coefficient for the X-rays in the energy of 65 and 83 keV to that of 0.25 mm lead plate.Furthermore,Gd1.80-Ba2.32/NL exhibited several advantages,including superior wearable comfortableness and excellent mechanical strength.Notably,it possessed a density that is only 1/3 of lead apron,while offering a water vapor permeability 12 times higher than that of lead apron.Its tensile strength and tearing strength surpassed national standards by 2 and 3 folds,respectively.Consequently,Gd1.80-Ba2.32/NL holds great potential as a wearable X-ray shielding material capable of replacing traditional lead apron.关键词
天然皮革/钡/钆/可穿戴/X射线屏蔽材料Key words
natural leather/barium/gadolinium/wearable/X-ray shielding material分类
化学化工引用本文复制引用
李昊,吴承承,王志新,王亚平,廖学品,石碧..钆-钡/天然皮革复合可穿戴X射线屏蔽材料的制备及性能[J].皮革科学与工程,2024,34(3):9-16,8.基金项目
国家自然科学基金(22278279) （22278279）
中国博士后科学基金(2023M742493) （2023M742493）
