一种新型γ射线防护涂料的制备及性能研究  

Preparation and study of a novel protective coating for γ-ray shielding

作　　者：朱小娜[1] 周元林[1] 罗世凯[2] 张严金[1] 李永升[1] 

机构地区：[1]四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,西南科技大学,绵阳621010 [2]中国工程物理研究院化工材料研究所,绵阳621900

出　　处：《化工新型材料》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)

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.

关 键 词：纳米钨酸铅 Γ射线 屏蔽率 涂料 

分 类 号：TQ630.7[化学工程—精细化工]