Abstract:
In response to the requirements of the “double first-class” discipline construction of “chemistry and green chemical engineering” of Sichuan University, the preparation of superhydrophobic polyurethane sponge that can be applied in oil-water separation is incorporated in innovation experimental teaching for undergraduate students. In this experiment, to prepare the sponge with superhydrophobic and superlipophilic properties, the superhydrophobic Fe
3O
4 nanoparticles are loaded by glue to construct stable micro-nanostructures and introduce low surface energy materials on the sponge surface. The oil-water separation performance of the superhydrophobic sponge was characterized by the contact angle and the adsorption capacity of oil. The effects of different experimental conditions on the superhydrophobic properties of the sponges are discussed by small exploration class. This innovative experiment improves the students’ creativeness and their ability to develop the new chemical products and technologies as well as their overall design and hands-on skills, and achieves the objective of innovative experiment teaching.