含废离子交换树脂聚合物复合材料的耐辐射性能研究

IF 0.3 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
E. E. Ostashkina, A. E. Savkin, E. A. Vanina
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引用次数: 0

摘要

研究了一种用脱水和包合的方法处理废离子交换树脂的工艺和装置。所获得的聚合物化合物的耐辐射性已按照法规要求使用开发和认证的方法进行了评估。采用机械强度(抗压强度)作为表征高分子化合物结构的指标。已经发现,在104 Gy的辐射剂量下,所研究的组合物的强度增加,这是由于辐射交联现象,导致形成额外的化学键和增强基体。当剂量为104-106 Gy辐照时,聚合物化合物样品的体积减小,这保证了用于其储存/掩埋的容器的完整性。辐照过程中聚合物化合物样品的放射性核素浸出率也降低,符合NP-019-15的要求。高分子化合物在结构的不变性和耐水性方面符合抗辐射的规范要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Study of Radiation Resistance of Polymer Compound with Included Spent Ion-Exchange Resins

Study of Radiation Resistance of Polymer Compound with Included Spent Ion-Exchange Resins

A technology and installation for conditioning of spent ion-exchange resins by dehydration and inclusion in a polymer binder have been developed. Radiation resistance of the polymer compound obtained has been assessed in accordance with regulatory requirements using developed and certified methods. Mechanical strength (compressive strength) has been adopted as an indicator characterizing the structure of the polymer compound. It has been found that, at a radiation dose of 104 Gy, the strength of the composition under study increases, and this is due to the radiation crosslinking phenomenon, which leads to the formation of additional chemical bonds and strengthening of the matrix. The volume of polymer compound samples when irradiated with doses of 104–106 Gy decreases, which guarantees the integrity of containers used for its storage/burial. The rate of radionuclide leaching from polymer compound samples during irradiation also decreases and is within the requirements of NP-019-15. The compliance of the polymer compound with the normative requirements of radiation resistance in terms of invariability of its structure and water resistance is shown.

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来源期刊
Inorganic Materials: Applied Research
Inorganic Materials: Applied Research Engineering-Engineering (all)
CiteScore
0.90
自引率
0.00%
发文量
199
期刊介绍: Inorganic Materials: Applied Research  contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya  and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.
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