1results about How to "Improve connection density" patented technology

This invention discloses a high specific surface area nanocellulose cotton pulp, its preparation method, and its application, belonging to the field of nanocellulose technology. The preparation method includes the following steps: cotton cellulose nanofibers are ultrasonically dispersed in water to obtain a cellulose dispersion; POSSPEGNH2 is added and stirred evenly; aldehyde-based biomaterials are added, and stirring and dispersion are continued. The system is adjusted to a weakly acidic state to obtain a high specific surface area nanocellulose cotton pulp. During the preparation process, POSSPEGNH2 is introduced into the cotton pulp system through synergistic ultrasonic dispersion, and reacts with the aldehyde groups provided in the system to form a dynamic imine crosslinking network, laying the foundation for the good mechanical properties of the cellulose membrane. Nanocellulose membranes prepared using the above-mentioned high specific surface area nanocellulose cotton pulp not only possess good mechanical strength but also expand their application prospects in flexible optoelectronic device substrate materials.