Paper material coated with soybean residue nanocellulose waterproof agent and its application in food packaging

The increased use of petroleum-based plastics as food packaging materials has led to serious problems due to its non-biodegradability. This study discussed the feasibility of preparing hydrophobic paper packaging materials using soybean residue nanocellulose as coating. A hydrophobic coating with soybean residue nanocellulose waterproof agent was prepared by chemical modification, and super hydrophobic coated paper was prepared by coating technology. The results show that the water contact angle of the coated paper is greater than 150°, and it has excellent wear resistance and mechanical properties. When the waterproof coated paper is folded repeatedly, the water contact angle of the material does not change significantly at high and low temperatures or other adverse means, indicating that it has certain stability. Soaking in daily common drinks will not affect its waterproof property, so this material provides a foundation for the development of liquid packaging and provides a feasibility for the production of green degradable waterproof agent.