纳米材料改性膨润土膨胀变形特性研究进展

纳米材料因其优异的导热性、吸附性和力学性能,被用于核废料处置库首选缓冲/回填材料--膨润土的改性研究。鉴于膨润土的膨胀变形特性在处置库设计中具有重要的作用,文章梳理了各种类型的纳米材料对膨润土膨胀变形的影响规律,分析了纳米材料改性膨润土的膨胀变形机理,并对未来的研究工作提出了合理的建议。

Because of its excellent thermal conductivity, adsorption capacity and mechanical properties, nanomaterials have been applied in the study of modification of bentonite, which is the preferred buffer/backfill material for nuclear waste repositories. Since the swelling deformation of bentonite plays an important role in the design of the repository, this paper summarizes the influence of various types of nanomaterials on the swelling deformation of bentonite, and the swelling deformation mechanism of the bentonite modified by nanomaterials was analyzed. Finally, some reasonable suggestions were given for future study.