Synthesis of Polyurethane Foam/Organonanoclay/Phosphates Composites and its Characterization

We prepared polyurethane foarn/cloisite30B/phosphates composites and characterized their rise time, density, cell morphology, and thermal properties. The composites were synthesized with polyadipatediol-cloisite30B composite (f=2.0), polyether-polyol (f=4.6), polymeric 4,4-diphenyl methane diisocyanate (f=2.5), and D-580 (phenyl polyoxyalkenyl phosphate). As a blowing agent, cyclopentane and distilled water were used at various concentrations of D-580 from 0 to 2.81 wt%. The rise times of PUF/Closite30B/Phosphate composites blown with distilled water were faster than those blown with cyclopentane by 30%. The composites blown with cyclopentane had spherical-shape cells and the cell diameter was decreased with increasing D-580 wt%. While T-g of the composites blown with cyclopentane linearly decreased with increasing the D-580 content, the T-g of the composites blown with distilled water increased with the D-580 content. All PUF/Closite30B/ Phosphate composites began to decompose from 250 degrees C. The composites blown with cyclopentane showed the second thermal decomposition at temperatures higher than 500 degrees C. The thermal stability of all composites increased with the D-580 content The effect of D-580 on the thermal stability of the composites was measured higher at the composites blown with distilled water.