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http://dx.doi.org/10.6108/KSPE.2019.23.6.021

Effect of Cross-linking Treatment of Lyocell Fabric on Carbon Fabric Properties  

Lee, Su-Oh (Department of Organic Materials & Fiber Engineering, Jeonbuk National University)
Park, Gil-Young (New Business Division, Dissol Co)
Kim, Woo-Sung (New Business Division, Dissol Co)
Hwang, Tae-Kyung (The 4th R&D Institute, Agency for Defense Development)
Kim, Yun-Chul (The 4th R&D Institute, Agency for Defense Development)
Seo, Sang-Kyu (The 4th R&D Institute, Agency for Defense Development)
Chung, Yong-Sik (Department of Organic Materials & Fiber Engineering, Jeonbuk National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.6, 2019 , pp. 21-27 More about this Journal
Abstract
Cellulose-based carbon fabrics are used in aerospace nozzles have low thermal conductivity and high ablation resistance. However, there is a disadvantage in that the weight is reduced by 70~90% in the pyrolysis process and graphitization process and the residual rate is low when the final carbon fabric is produced. In this study, phosphoric acid as a phosphorus flame retardant and Citric acid as a cross-linking agent were treated on the lyocell fabrics. After that the functional groups were identified and thermal properties were confirmed by FT-IR, XRD and TGA. The yields of the final carbon fabrics were also compared through the pyrolysis and graphitization process. The graphitized yield increased to 8.1% with increasing citric acid to 16 wt% added.
Keywords
Lyocell fabric; Citric acid; Phosphoric acid; Thermal stability; Thermogravimetric Analysis;
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