Abstract：In the paper,the polyurethane(PU)/carbon nanotubes(CNTs) composites were produced by ultrasonic dispersion and solution-blending methods.The selection of PU dissolution and CNTs dispersing solution,and fabrication of composites were analyzed.The results showed that tetrahydrofuran and N,N-dimethylfomamide(DMF) could be used as resolving solution with 1:1,and 1 g PU was resolved with 20 mL solutions about 72 h.The DMF was used as the dispersion solution of CNTs with ultrasonic dispersion about two hours.The producing processes of PU/CNTs composites were successively to heat on the furnace,dry in the vacuum box,and solidify in the air.The smooth surface of composites could be produced.
2012, Vol. 34 
