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Self-healing microcapsules encapsulated with carbon nanotubes for improved thermal and electrical properties

机译：用碳纳米管封装的自愈微胶囊，用于改善热和电气性能

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摘要

Microcapsules are widely used by researchers in self-healing composites. In this study, multi-walled carbon nanotubes (CNT) were incorporated into the core of the microcapsules, along with the self-healing agent. Dicyclopentadiene (DCPD) and urea-formaldehyde (UF) were chosen as the core and shell materials respectively, and DCPD-CNT-UF based dual core microcapsules were synthesized. Two types of microcapsules, namely, DCPD-UF and DCPD-CNT-UF were successfully synthesized by thein situpolymerization technique. The novelty of this work is the development of dual core microcapsules with DCPD-CNT-UF combination. Surface morphology characterization and elemental analysis of the microcapsules were carried out using a scanning electron microscope (SEM-EDX). TGA and DSC analysis show that DCPD-CNT-UF microcapsules have better thermal stability than DCPD-UF microcapsules. These novel DCPD-CNT-UF microcapsules were found to be compatible with epoxy base resin for making resin castings. The presence of CNT is found to improve the mechanical, thermal and electrical properties of the resin cast specimens without compromising on self-healing efficiency.
机译：微胶囊广泛的自愈复合材料被研究人员。在这项研究中，多壁碳纳米管（CNT）被纳入微胶囊的核心，具有自愈剂一起。二环戊二烯（DCPD）和脲 - 甲醛（UF）被选择为核心，分别壳材料，以及基于DCPD-CNT-UF双核微囊合成。两种类型的微胶囊，即，DCPD-UF和DCPD-CNT-UF的成功地被登situpolymerization技术合成。这项工作的新颖之处在于用DCPD-CNT-UF组合双核微胶囊的发展。表面形态表征和微胶囊的元素分析进行​​了使用扫描电子显微镜（SEM-EDX）。 TGA和DSC分析表明，DCPD-CNT-UF微胶囊比DCPD-UF微胶囊较好的热稳定性。这些新颖的DCPD-CNT-UF微胶囊被发现是用环氧基树脂制造树脂铸件兼容。 CNT的存在被发现以改善树脂铸型标本的机械，热和电性能而不损害自愈效率。

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  • 来源
    《RSC Advances》 |2020年第55期|共11页
  • 作者

    Naveen V.; Deshpande Abhijit P.; Raja S.;

  • 作者单位

    CSIR Natl Aerosp Labs Bangalore 560017 Karnataka India;

    Indian Inst Technol Madras Dept Chem Engn PECS Lab Chennai 60036 Tamil Nadu India;

    CSIR Natl Aerosp Labs Bangalore 560017 Karnataka India;

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  • 正文语种 eng
  • 中图分类 化学;
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