Influence of fumed silica on the flame-retardant properties of ethylene vinyl acetate/aluminum hydroxide composites

Authors

  • Chuan-Mei Jiao,

    Corresponding author
    1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, People's Republic of China
    • College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, People's Republic of China
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  • Xi-Lei Chen

    1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, People's Republic of China
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Abstract

The flammability and synergistic flame-retardant effects of fumed silica (SiO2) in ethylene vinyl acetate (EVA)/aluminum hydroxide (ATH) blends were studied with limiting oxygen index measurements, UL 94 testing, cone calorimeter testing (CONE), and thermogravimetric analysis (TGA). The results show that the addition of a given amount of fumed SiO2 can apparently improve UL 94 rating. The CONE data indicated that the addition of fumed SiO2 greatly reduced the heat release rate. The TGA data showed that this synergistic flame-retardant mechanism of fumed SiO2 in the EVA/ATH materials was mainly due to the physical process. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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