Abstract
This paper presents the influence of dispersing Cloisite-Na and Cloisite-15A Nanoclays in vinylester/glass on their fire retardation behaviour. Cloisite-Na and Cloisite-15A in 1 to 5 wt % was dispersed in vinylester using the combination of ultrasonication and twin screw extrusion. Nanoclay/vinylester/glass specimens were fabricated using hand lay-up technique. XRD results of Nanoclay/vinylester gel coat showed exfoliation of Nanoclay up to 4 wt % loading. Glass transition temperature of Nanoclay /vinylester increased monotonically with increase in Nanoclay loading. Limiting oxygen index of Nanoclay /vinylester/glass specimens decreased monotonically with the addition of Cloisite-Na and Cloisite-15A. TGA study showed that the thermal degradation behavior improved in addition of nanoclay in vinylester
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