International Journal of Carbohydrate Chemistry / 2011 / Article / Tab 1

Research Article

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

Table 1

Mechanical properties and water absorption of modified saw dust composite.

Different modification samplesMechanical propertiesWater absorption after immersion in water
Bending strength (N/mm2)MOE (N/mm2)Wt% (2 hr)Wt% (24 hr)Wt% (7 day)

Saw dust + urea formaldehyde (control)12.51161.490.689.3110.9
Saw dust + UF + paraffin wax8.2982.970.970.281.5
Saw dust UF + P.W + 0.5% (BA + BX)7.6948.6666677.1
Saw dust + UF + P.W + 1% (BA + BX)790262.361.671.8
Saw dust + UF + P.W + 5% (BA + BX)5.049863.556.155.260

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