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Abstract <p>A new composite material based on thermoplastic elastomer is developed for the 3D printing of neutron-absorbing products. It is shown that the use of thermoplastic elastomer in the development of material for the 3D printing of products allows for the required neutron absorption properties to be achieved, significantly increasing the technological effectiveness of the composition and preserving its applicability in additive technologies. The concentration of boron nitride in the composite, which allows achieving the effect of absorption of neutron radiation by the material of 2.4 Å/1.2 Å (3/1) to a penetration depth of 1.4 mm, while maintaining its physical and mechanical properties, was 25%. The physical and mechanical characteristics of the developed material are not inferior to unfilled plastics: tensile strength σ<sub>max</sub> = 8.1 MPa and tear resistance <i>T</i><sub>s</sub> = 76 N/m.</p>

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Application of Neutron-Absorbing Composites Based on Thermoplastic Elastomer and Boron Nitride in 3D Printing

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • M. V. Timoshenko,
  • M. M. Sychev,
  • S. V. Dyachenko,
  • V. V. Tarnavich,
  • Yu. O. Chetverikov,
  • M. M. Murashev

摘要

Abstract

A new composite material based on thermoplastic elastomer is developed for the 3D printing of neutron-absorbing products. It is shown that the use of thermoplastic elastomer in the development of material for the 3D printing of products allows for the required neutron absorption properties to be achieved, significantly increasing the technological effectiveness of the composition and preserving its applicability in additive technologies. The concentration of boron nitride in the composite, which allows achieving the effect of absorption of neutron radiation by the material of 2.4 Å/1.2 Å (3/1) to a penetration depth of 1.4 mm, while maintaining its physical and mechanical properties, was 25%. The physical and mechanical characteristics of the developed material are not inferior to unfilled plastics: tensile strength σmax = 8.1 MPa and tear resistance Ts = 76 N/m.