SPONGE FOR OIL-WATER SEPARATION, AND COMPOSITION FOR MANUFACTURING SPONGE FOR OIL-WATER SEPARATION

摘要

To provide a sponge for oil-water separation capable of oil-water separation more easily.SOLUTION: The sponge for oil-water separation is manufactured by reacting a polyisocyanate with a polyol composition containing a first polyol component having a hydroxyl value in a range of 33 mgKOH/g to 60 mgKOH/g, and content of oxyethylene in a range of 50 mol% to 80 mol%, a second polyol component having a hydroxyl value in a range of 80 mgKOH/g to 300 mgKOH/g, and content of oxyethylene in a range of 50 mol% to 80 mol%, a graft polyol component having a hydroxyl value in a range of 20 mgKOH/g to 40 mgKOH/g, a tetrafunctional polyol component having a hydroxyl value in a range of 350 mgKOH/g to 650 mgKOH/g, and glycerol, under a condition to contain graphene, a catalyst, a foaming agent and a foam stabilizer.SELECTED DRAWING: Figure 3