Research Article
Effect of Addition of Boric Acid and Borax on Fire-Retardant and Mechanical Properties of Urea Formaldehyde Saw Dust Composites
Table 3
Effect of addition of different concentrations of (BA + BX) on modified wood composite.
| Samples | Glowing time, Sec | Wt loss, % | Char length, mm |
| Wood + 10% urea formaldehyde | 90 | 52.1 | 50 |
| Wood + 10% urea formaldehyde + Paraffin wax | 68 | 49.3 | 43 |
| Wood + 10% urea formaldehyde + Paraffin wax + 0.5% (BA + BX) | 42 | 16.8 | 12 |
| Wood + 10% urea formaldehyde + Paraffin wax + 1% (BA + BX) | 30 | 8.3 | 4 |
| Wood + 10% urea formaldehyde + Paraffin wax + 5% (BA + BX) | 17 | 5 | 2 |
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