Comparison between Rice Husk Ash and Commercial Silica as Filler in Polymeric Composites

Abstract:

The use of rice husk ash (RHA) as filler in polymeric materials has been studied in different polymers. Research reported that RHA may successfully replace silica. The silica production process using ore demands high energy input and produces considerable amounts of waste. Therefore, the replacement of silica by RHA may be economically and environmentally advantageous, reducing environmental impact and adding value to a waste material. In this context, this study characterizes and compares RHA of different sources (moving grate and fluidized bed reactor) with commercially available silicas to assess performance as filler in polymeric materials. Samples were characterized by X-ray fluorescence, loss on ignition, X-ray diffraction, grain size, specific surface area, specific weight, and scanning electron microscopy. The results show that RHA may be used as a filler in several polymeric materials.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 209-214
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.209
• Online since: August 2016
• Authors: Iara Janaína Fernandes*, Daiane Calheiro, Emanuele Caroline Araújo dos Santos, Roxane Oliveira, Tatiana Louise Avila de Campos Rocha, Carlos Alberto Mendes Moraes
• Keywords: Comparison, Filler, Polymeric Composite, Rice Husk Ash, Silica

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