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    한국섬유공학회지, Vol.55, No.6, pp. 444-449, 2018
    멜트블로운 폴리프로필렌/실리카 에어로겔 부직포의 제조와 단열 특성 분석
    Fabrication and Thermal Insulation Characterization of Melt-Blown Polypropylene/Silica Aerogel Nonwoven Fabrics
     
    신정우 · 정영규
     
    To develop heat insulation fabrics with lightweight, low volume and excellent thermal insulation properties, in this study, a binder-free polypropylene/silica aerogel nonwoven fabric with an area density of ~79.7 g/m2 was fabricated via a facile melt-blowing process, and its structure, thermal conductivity and thermal insulation properties were investigated. For comparison, a polyester hollow fiber nonwoven having a similar area density of ~84.6 g/m2 was prepared by needle-punching. Additionally, a series of composite nonwoven fabrics was prepared by layering the melt-blown polypropylene/silica aerogel nonwoven and the polyester hollow fiber nonwoven in various combinations, and their thermal insulation properties and thermal conductivity were analyzed. Scanning electron microscopic analyses revealed that 5 wt% silica aerogel added during the melt-blown process was adhered well to polypropylene fiber surfaces of the nonwoven fabric. As a result, the melt-blown polypropylene/silica aerogel nonwoven fabric exhibited a low thermal conductivity of 43 mW/m
     
    Keywords : silica aerogel, nonwoven, melt-blowing, polypropylene, thermal conductivity, thermal insulation
    DOI : https://doi.org/10.12772/TSE.2018.55.444
     
    Full text(PDF)  멜트블로운 폴리프로필렌/실리카 에어로겔 부직포의 제조와 단열 특성 분석