| AVS 64th International Symposium & Exhibition | |
| Sustainability Focus Topic | Tuesday Sessions |
| Session SU+2D+MS+NS-TuA |
| Session: | Membranes, Thin Films, and Sensors |
| Presenter: | Kenneth Carter, University of Massachusetts - Amherst |
| Authors: | K. Carter, University of Massachusetts - Amherst A. Chang, University of Massachusetts – Amherst K.L. Martin, University of Massachusetts – Amherst Y. Li, University of Massachusetts – Amherst |
| Correspondent: | Click to Email |
Nanocellulose is an interesting material with unique properties and chemistry. We have worked to exploit these characteristics to develop new functional thin films and aerogels. We have developed a new method for the preparation of well-dispersed cellulose nanofibrils and nanocrystals. Advantageously, the method does not require the use of harsh acids and excludes the use of catalytic oxidants such as 2,2,6,6-tetramethyl-1-piperidine-N-oxy (TEMPO) . Furthermore, the nanofibrils and nanocrystals produced by the method are easily re-dispersible and give stable aqueous dispersions. Transparent, robust nanocellulose thin films were prepared with outstanding anti-fogging properties. Most recently, nanocellulose was used to prepare aerogel/foam materials using a new fabrication method. The aerogels are mechanically stable and robust. Our new aerogel fabrication process obviates the need to use freeze-drying or low pressure solvent removal. We will present data on new nanocellulose aerogels with densities ranging from 5-100 mg/cm3.