Abstract: The polyurethane foams containing bamboo charcoal stuff were synthesized via on step method. Materials density, mechanical properties, color indices, anion release and far-infrared emissivity of flexible polyurethane-bamboo charcoal composites were determinate. The result showed that the materials density, anion release, rebound ratio and far-infrared emissivity of this composites increased with content of bamboo charcoal. The tensile strength, elongation at break, fracture strength decreased with content of bamboo charcoal, and just were 63.8%, 57.04% and 55.32% of these in CK when content of bamboo charcoal in composites was 8%. When content of bamboo charcoal in composites was 2%, the mechanical properties of polyurethane-bamboo charcoal composites achieve the Chinese National Standard for flexible polyurethane foams.

Key words: foam, bamboo charcoal, polyurethane, composites