Review Article
Rice Husk Filled Polymer Composites
Table 2
(a) Chemical and (b) physical properties of typical RHA fillers [
34].
| Property | WRHA | BRHA |
| (a) Chemical composition (%) | CaO | 0.360 | 0.120 | MgO | 0.160 | 0.078 | Fe2O3 | 0.041 | 0.022 | K2O | 0.690 | 0.950 | Na2O | 0.034 | 0.018 | Al2O3 | 0.025 | 0.023 | P2O5 | 0.570 | 0.270 | SiO2 (silica) | 92.200 | 53.880 | Loss of ignition (LOI) | 1.620 | 44.480 |
| (b) Physical properties | Particle size (μm) | 6.60 | 19.50 | Surface area (m2/g) | 1.40 | 26.80 | Density (g/cm3) | 2.20 | 1.80 |
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