Extraction of cellulose nanocrystals from paper waste cellulose microfibers by phosphoric acid hydrolysis

The cellulose nanowhiskers (CNWs) are in the spotlight due to their suitable physical, mechanical and biological properties. In this study, to synthesize of the novel phospho- nanowhiskers (PCNWs), we utilized an acidic hydrolysis method, whereby extracted The CNWs from micro crystal cellulose fibers based on phosphoric acid. The extracted CNWs had about of 100 nm in diameter with high aspect ratio compares to other type of CNWs which to date has been synthesized. For evaluation of CNWs, the various tests used such as scanning electron microscopy, Fourier transform infrared spectroscopy and optical microscopy. The CNWs can be introduced as the best candidate for use in making of scaffolds for bone tissue engineering due to functionalized surface and their high aspect ratio