摘要
以自制的超疏水性纳米钨酸铅为功能填充料,研制了一种对γ射线有良好的辐射屏蔽性能,且施工性能优良的、抗辐照的新型辐射防护涂料。利用可见分光光度计、原子力显微镜和红外光谱仪等对产物进行了表征,并研究了钨酸铅添加量对59.5keVγ射线屏蔽率的影响。结果表明:纳米钨酸铅在有机溶剂中有良好的分散稳定性;纳米钨酸铅与涂料组分发生了化学作用,从而表现出与基料良好的相容性;纳米钨酸铅的最佳用量为27%～30%,涂膜对γ射线的屏蔽率高达32%,涂料的硬度和流平性也有了很大改善。
Using super-hydrophobic PbWO4 nanocrystals as functional stuffing,a novel protective coating were prepared,which showed good radiation shielding,construction properties and resistance to irradiation.The protective coating were characterized systematically using visible spectrophotometer,atomic force microscope and Fourier transform infrared spectroscopy.The effect of various amount of nano-PbWO4 particles on shielding ratio to 59.5 keV γ-ray were also discussed.The results revealed that nano-PbWO4 particles had good dispersion and stability in organic solvents,chemistry reaction happened between components of coatings and nano-PbWO4 particles,thus it showed good compatibility with binders.The optimum amount of nano-PbWO4 particles was 27%~30%,the shielding ratio to γ-ray was up to 32% and the hardness and levelling property were also greatly improved.
出处
《化工新型材料》
CAS
CSCD
北大核心
2011年第10期45-47,共3页
New Chemical Materials
基金
国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10876033)
关键词
纳米钨酸铅
Γ射线
屏蔽率
涂料
PbWO4 nanocrystal
γ-ray
shielding ratio
coating
