Abstract
In this study, we found that the use of phosphite esterified cellulose nanofibers (CNF-P) in combination with the foaming method can produce porous bodies due to the interaction between nonionic surfactants and hydrophobic/hydrophilic CNF-P. When the foaming method was applied to the water-based slurry, the hydrophilic-lipophilic balance of the nonionic surfactant used was about 11-14.5, indicating that the foam was stable during preparation. Furthermore, it was shown that the addition of CNF-P promoted the formation of both micron-sized pores and macro-sized pores (100-400 μm).
