RESEARCH ON FIRE RESISTANCE OF WOOD TREATED WITH BORIC ACID AND SODIUM SILICATE
Keywords:
Styrax tonkinensis, Acacia hybrid, Fire retardance,, Boric acid, Sodium silicateAbstract
Wood of Styrax tonkinensis and Acacia hybrid are treated with some chemical formulas based
on boric acid and sodium silicate for evaluation of fire retardance. The main index to consider
the posibility of fire is the weight loss (%) of sample after fire testing. Samples treated with
boric acid solution or sol of silicate are significantly enhanced the fire resistance compared
with the control sample. With the formulas in which boric acid solution added of glycols, the
fire resistance of samples reduce greatly. The preliminary results of the samples treated with
solution based on combination of boric acid and sodium silicate show that they are very high
resistant to fire. The results also indicate that there are more advantages when combination
chemicals in formulations than using them alone, or silica deposition.
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