Tritium protection material and preparation method thereof

Abstract

The invention belongs to the field of radiation protection materials, and discloses a tritium protection material and a preparation method thereof. By combination of reinforcing, toughening and tritium-penetration-delaying performances of a micro-nano inorganic matter and the radiation protection performance of a micro-nano metal compound containing metal elements namely lead and bismuth, and by adoption of a blending method, the micro-nano inorganic matter and the micro-nano metal compound are added into a rubber latex for molding and vulcanization to form a product through the methods of impregnation, coating and the like. According to the invention, by combination of the reinforcing, toughening and tritium-penetration-delaying performances of the micro-nano inorganic matter and the radiation protection performance of the micro-nano metal compound containing metal elements like lead and bismuth, the permeability, mechanical properties and radiation protection performance of tritium are simultaneously improved; with the rubber latex as a substrate, the micro-nano inorganic matter and the metal compound are conveniently and uniformly dispersed, and molding of the tritium protectionmaterial with various shapes is conveniently realized; meanwhile, energy consumption in the processing process of the material is reduced; etc.

Description

technical field [0001] The invention belongs to the field of radiation protection materials, in particular to a tritium protection material and a preparation method thereof. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] The current tritium protective flexible materials are generally made of multi-layer combinations of various rubber materials or by blending several types of rubber with excellent airtight performance with hydrogen absorbing agents or physical anti-tritium materials and through pressing, impregnating, coating and other methods. Preparation of tritium shielding material. [0004] In the tritium-related process, polymer-based tritium protective materials are essential, such as tritium protective gloves, tritium protective clothing, and some sealing rings. These will be directly related to the safety of operators. Therefore, the development of tritium protective materials generally ne...

AI Technical Summary

Problems solved by technology

[0007] (1) In the prior art, the free volume between each layer and each phase will increase the adsorption and penetration of tritium; as time goes on, the hydrogen absorbing agent reaches saturation, and at this moment the penetration rate of tritium will increase greatly, thereby Injure the operator and pollute the environment, and also cause the loss of tritium;

[0008] (2) β radiation will break the polymer chain and degrade it, which will affect the service life of the polymer material. Therefore, for tritium protective materials, the β radiation of tritium must be taken into account

[0010] Simple polymer composite materials cannot achieve protection against tritium, which is due to the inherent poor gas barrier properties of polymer materials, and the beta radiation of tritium will cause polymer chains to break and degrade, further increasing the penetration of tritium; a single The aluminum oxide anti-tritium material can delay the penetration of tritium in polymer materials, but it has no effect on the degradation of polymer chains by the beta radiation of tritium. Therefore, an excellent tritium protection material should not only slow down the penetration of tritium, but also It is also necessary to consider shielding the beta radiation of tritium

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