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CARBONLETT, vol. 28, no. 1, pp.66-71, 2018

DOI: http://dx.doi.org/ DOI:10.5714/CL.2018.28.066

Improved flame retardant performance of cellulose fibers following fluorine gas treatment

Jong Gu Kim1, Young-Seak Lee1,♠, and Se Jin In2,♠

Affiliation: 1Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea
2Department of Fire and Disaster Protection Engineering, Woosong University, Daejeon 34606, Korea

Abstract: To improve the flame retardant performance of cellulose fibers, fluorine functional groups were introduced under various controlled fluorination conditions. The properties of the fluorinated cellulose fibers were analyzed by X-ray photoelectron spectroscopy and a thermogravimetric analysis. The fluorine functional group content in the fluorinated cellulose fibers increased with an increase in the fluorination temperature. However, the fluorination reaction increased the char yield and decreased the rate of degradation of the cellulose fibers by introducing donors, enabling the formation of a thick and compact char layer. Therefore, the flame retardant properties of cellulose fibers were improved following the fluorination treatment.

Keyword: youngslee@cnu.ac.kr