Recently, a Swiss research institute called "Empa" developed a hydrophobic and oil-absorbing sea surface, which uses nanofibrillated cellulose (NFC). ), active alkoxysilane is used in the production process to remove the hydrophilicity of cellulose, leaving only the oil-absorbing properties, and the oil-absorbing capacity is 50 times its own weight. Tests have shown that it can effectively absorb a variety of oily substances such as engine oil, silicone oil, ethanol, and propanol, and will not sink to the bottom of the water. It also has biodegradable properties and is very promising for development.
