STUDY ON SYNTHESIS OF POLYURETHANE ELASTOMERIC / ORGANIC MONTMORILLONITE NANOCOMPOSITES

摘要

Synthesis of polyurethane elastomeric / organic montmorillonite nanocomposites is studied. Polyurethane elastomeric / organic montmorillonite (OMMT) nanocomposites nanocomposites with different amount of original MMT was modified by excellent intercalating agent. OMMT were prepared by in situ polymerization. Biological aerated filter was applied for the treatment of COD in landfill leachate wastewater and the modified polyurethane elastomeric / organic montmorillonite nanocomposites were used as the carrier. The experimental results showed that the optimized conditions are present: temperature is 25°C, the initial concentration of wastewater is 50000 mg/L, pH is 6.5, and mass ratio is 0.8.New composites are harder elastomers with potential applications where the combinations of de- formability and hardness, as well as good weathera- bility at lower price, are desired.