Oxidative Dye Based in situ Impregnation Process for Isotropic Graphite Blocks 


Vol. 61,  No. 6, pp. 287-297, Dec.  2024
10.12772/TSE.2024.61.287


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  Abstract

This study investigated in situ impregnation of bulk graphite blocks using an oxidative dye as a impregnating agent under normal pressure and compared impregnation behaviors with conventional pitch impregnation. Three different graphite blocks with low, medium, and high density were impregnated with pitch and oxidative dye. When three types of graphite blocks were impregnated using both pitch under normal pressure and oxidative dye via in situ impregnation, the density increase was consistently higher in graphite blocks impregnated with pitch under normal pressure. However, the impregnation behaviors exhibited difference between the conventional pitch impregnation and the novel oxidative dye based in situ impregnation. The pitch-impregnated blocks had difficulty penetrating the inner regions under normal pressure, resulting in more impregnation on the outer regions, due to the high viscosity of molten pitch. On the other hand, when using oxidative dye in situ impregnation, more impregnation into the the interior of the blocks were observed. Since oxidative dye impregnation material is in a low-viscosity aqueous state, it can easily penetrate into the block's inner regions even under normal pressure. Considering this impregnation behavior, even with the lower density increase in the in situ impregantion, it can be an effective way as a novel impregnation method for bulk graphite block manufacturing process.

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[IEEE Style]

안태민, 이권윤, 권. 웅, 김혜인, 정의경, "Oxidative Dye Based in situ Impregnation Process for Isotropic Graphite Blocks," Textile Science and Engineering, vol. 61, no. 6, pp. 287-297, 2024. DOI: 10.12772/TSE.2024.61.287.

[ACM Style]

안태민, 이권윤, 권 웅, 김혜인, and 정의경. 2024. Oxidative Dye Based in situ Impregnation Process for Isotropic Graphite Blocks. Textile Science and Engineering, 61, 6, (2024), 287-297. DOI: 10.12772/TSE.2024.61.287.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)