| abstract |
Disclosed is a polyurethane foam used for a water treatment carrier, which has excellent hydrophilicity and suppresses an increase in COD of water after contact with water. The present invention relates to a polyurethane foam produced using a foam raw material containing a polyol containing a bifunctional polyalkylene oxide polyol, a polyisocyanate, a foaming agent, a foam stabilizer, a catalyst and a crosslinking agent, In the foam raw material, the polyalkylene oxide part in the polyalkylene oxide polyol contains 40 to 85 mol% of units derived from ethylene oxide, and has an isocyanate index of 105 to 125, for water treatment It is a polyurethane foam used as a carrier. [Selection figure] None |