Effect of Addition of Boric Acid and Borax on Fire-Retardant and Mechanical Properties of Urea Formaldehyde Saw Dust Composites

Figure 1

Scanning electron microscopy of (a) saw dust wood, (b) wood + 10% urea formaldehyde, (c) wood + 10% urea formaldehyde + paraffin wax, (d) wood + 10% urea formaldehyde + paraffin wax + 0.5%, (BA + BX), (e) wood + 10% urea formaldehyde + paraffin wax + 1% (BA + BX), and (f) wood + 10% urea formaldehyde + paraffin wax + 5% (BA + BX).

(a)

(b)

(c)

(d)

(e)

(f)