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