Tailoring thermal insulation in carbon fiber reinforced composites: Pore-preserved aerogels and thermoplastic matrix engineering

IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Woo Seong Choi , Gyun Young Yoo , Ki Hoon Kim , Sung Jin Kim , Yong Chae Jung , Seong Yun Kim
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引用次数: 0

Abstract

There is an increasing demand for battery pack housing materials that offer lightweight, mechanical, and thermal insulation properties to prevent thermal runaway caused by external mechanical and/or thermal stimuli. In this study, by applying a polypropylene (PP) chain-length control strategy to impregnate micropores between carbon fibers (CFs) and to maintain nanopores within the incorporated silica aerogel (SA), a CF reinforced thermoplastic (CFRTP) with superior thermal insulation properties was proposed. The PP chain length, used as matrix, was identified as the most important structural factor determining the extent of CF impregnation and preservation of the SA nanopore structure. Additionally, the optimized CFRTP, in which SA nanopores were preserved and CF was well-impregnated, exhibited excellent thermal insulation with a value of 0.045 W/m·K. The excellent thermal insulation properties of the proposed CFRTP make it a promising candidate for applications in electric vehicle battery pack enclosures.
碳纤维增强复合材料的隔热剪裁:孔隙保存气凝胶和热塑性基质工程
为了防止由外部机械和/或热刺激引起的热失控,对具有轻质、机械和隔热性能的电池组外壳材料的需求不断增加。在本研究中,通过聚丙烯(PP)链长控制策略浸渍碳纤维(CFs)之间的微孔,并在掺入的二氧化硅气凝胶(SA)中保持纳米孔,提出了一种具有优异隔热性能的CF增强热塑性塑料(CFRTP)。作为基体的PP链长是决定CF浸渍程度和SA纳米孔结构保存的最重要的结构因素。此外,优化后的CFRTP保留了SA纳米孔,并浸渍了CF,保温性能优良,保温系数为0.045 W/m·K。所提出的CFRTP优异的隔热性能使其成为电动汽车电池组外壳应用的有希望的候选者。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Materials Research and Technology-Jmr&t
Journal of Materials Research and Technology-Jmr&t Materials Science-Metals and Alloys
CiteScore
8.80
自引率
9.40%
发文量
1877
审稿时长
35 days
期刊介绍: The Journal of Materials Research and Technology is a publication of ABM - Brazilian Metallurgical, Materials and Mining Association - and publishes four issues per year also with a free version online (www.jmrt.com.br). The journal provides an international medium for the publication of theoretical and experimental studies related to Metallurgy, Materials and Minerals research and technology. Appropriate submissions to the Journal of Materials Research and Technology should include scientific and/or engineering factors which affect processes and products in the Metallurgy, Materials and Mining areas.
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