文化大學機構典藏 CCUR:Item 987654321/2395
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    题名: Some physical properties of various amine-pretreated Nomex Aramid yarns
    作者: Wang, C.C.
    贡献者: 紡織工程學系
    日期: 2005
    上传时间: 2009-10-30 13:36:04 (UTC+8)
    摘要: In this study we pretreated Aramid yarns with ethylenediamine (EDA), diethylene triamine (DETA), and triethylene tetraarnme (TETA) under different conditions to study some of their physical properties. The tensile strength retention, dye absorption (basic dye), and wicking height changed increasing pretreatment temperature, time period, and amines concentration. The glass-transition temperature and the density of the crystals were ranked as follows: EDA > DETA > TETA; however, the degrees of the surface void were inverse. We concluded that the polymer chains of the Aramid fibers were rearranged through shrink- age of the pretreated Aramid fibers during pretreatment, and the hydrolysis of the Nomex polymer chains occurred under higher amine concentrations. The former phenomena were confirmed with differential scanning calorimetry, dynamic mechanical analysis, and X-ray diffraction analyses, and the latter were confirmed with Fourier transform infra-red spectroscopy and basic dye adsorption analysis. (C) 2005 Wiley Periodicals, Inc.
    關聯: JOURNAL OF APPLIED POLYMER SCIENCE v.96 n.1 Pages: 70-76
    显示于类别:[紡織工程學系] 期刊論文

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