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    한국섬유공학회지, Vol.54, No.5, pp. 397-402, 2017
    다른 유기용매로 개질된 폴리카보실란의 특성 연구
    The Characteristics of Modified Polycarbosilane by Different Organic Solvents
     
    주영준 · 허서에르딘키싱바야르 · 김철진 · 조광연
     
    Silicon carbide (SiC) fiber with a high tensile strength and heat resistance was synthesized using polycarbosilane (PCS) precursor. The many research have been progressed to improve the spinnability and handling strength of PCS green fiber due to its brittle property by a low molecular weight. However, the study for the effect of various solvents, which is used to synthesize the PCS or to modify the PCS structure using additive is insufficient. Therefore, PCS modified by polymer blend method using various organic solvents such as para-xylene, meta-xylene, ortho-xylene, and cyclohexane. The thermal properties and GPC profile for the modified PCSs show the different interaction between PCS and solvent. The spinnability of PCSs was confirmed through apparent activation energy, calculated by Andrade equation, and spinning process. SiC fiber that is converted from blended PCS fibers with para-xylene and ortho-xylene show the same morphology containing the clean and smooth surface.
     
    Keywords : polycarbosilane, organic solvent, characteristics, spinnability, SiC fiber
    DOI : https://doi.org/10.12772/TSE.2017.54.397
     
    Full text(PDF)  다른 유기용매로 개질된 폴리카보실란의 특성 연구