| 摘要 |
PURPOSE: Oil absorbent is provided to selectively and rapidly absorb a small amount of oil by being added to the liquid material which water and oil are mixed, steadily collect a large amount of oil, and separate water and oil in a high efficiency as water is easily emitted and removed. CONSTITUTION: Oil absorbent is multi-layered structure which hydrophobic film is arranged at intervals of 10-20,000μm. The contact angle of hydrophobic film to water is greater than 45°at a room temperature. The thickness of the hydrophobic film is 5-3,000μm. A gap is formed between the hydrophobic film by inserting the spacer which has thickness to separate the hydrophobic film or using hydrophobic film which has concavo-convex on the surface. |
