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Abstract <p>The article presents the results of the synthesis of carbon nanotubes (CNTs) by laser ablation to create functional polymer composites with improved electrical and thermal conductivity properties. The synthesis was carried out on a 200 W setup with a pulse duration of 0.1 s by varying the ratio of graphite and ferrocene in the target (4 : 1, 5 : 1, 6 : 1, 7 : 1 with exposure time of 0.1 s). Comprehensive studies using Raman spectroscopy, SEM, and X-ray diffraction analysis show that the obtained CNTs are characterized by diverse morphology with a diameter in the range of 30–60 nm and the presence of iron-containing catalytic particles on the surface. It is established that changing the ratio of the target components allows for targeted regulation of the specific surface area and morphological characteristics of CNT. In this regard, the synthesis mode for laser ablation is effective with parameters of 0.1 s duration and 200 W power. It is shown that the synthesized CNTs exhibit high efficiency in creating conductive networks in polymer matrices, including silicones, which opens up prospects for the development of functional composite materials with specified thermal and electrical properties.</p>

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Laser-Induced Modification of Carbon Nanomaterials to Create a Conductive Phase in a Polymer

  • 期刊论文

  • 发表日期：

    2025年10月1日

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  • A. V. Shchegolkov,
  • A. A. Babaev,
  • A. V. Shchegolkov

摘要

Abstract

The article presents the results of the synthesis of carbon nanotubes (CNTs) by laser ablation to create functional polymer composites with improved electrical and thermal conductivity properties. The synthesis was carried out on a 200 W setup with a pulse duration of 0.1 s by varying the ratio of graphite and ferrocene in the target (4 : 1, 5 : 1, 6 : 1, 7 : 1 with exposure time of 0.1 s). Comprehensive studies using Raman spectroscopy, SEM, and X-ray diffraction analysis show that the obtained CNTs are characterized by diverse morphology with a diameter in the range of 30–60 nm and the presence of iron-containing catalytic particles on the surface. It is established that changing the ratio of the target components allows for targeted regulation of the specific surface area and morphological characteristics of CNT. In this regard, the synthesis mode for laser ablation is effective with parameters of 0.1 s duration and 200 W power. It is shown that the synthesized CNTs exhibit high efficiency in creating conductive networks in polymer matrices, including silicones, which opens up prospects for the development of functional composite materials with specified thermal and electrical properties.