研制了一种新型柔性硼基苯基硅橡胶中子屏蔽材料,重点研究了不同B₄C含量对复合材料的力学性能、热学性能及中子屏蔽性能的影响。结果表明:复合材料的断裂拉伸应变和拉伸强度随着B元素含量的增加有短暂的减小;复合材料的耐热性能随着B元素含量的增加而增强;复合材料的中子屏蔽性能随着B元素含量的增加而增加;纳米复合材料相比于微米复合材料在力学性能、热学性能和中子屏蔽性能方面都有一定的提高。该新型苯基硅橡胶柔性中子屏蔽材料具备应用到结构复杂、形状各异的核技术场地中的潜力,有很大的应用前景。

A new kind of flexible boron-based phenyl silicone rubber neutron shielding material was developed.The effects of different B4C content on the mechanical property,thermal property and neutron shielding property of composite were the key research.The research showed that the tensile strain and tensile strength of composite decreased with the increase of B content,and the heat resistance and neutron shielding property increased with the augment of B content.The Nanocomposite had a certain improvement in mechanical property,thermal property and neutron shielding property compared with those of micron composite material.The experimental results showed that the new type material possessed the potential to be applied in the complex nuclear technology field with various structure and different shape.It had a great application prospect.