Abstract
Cellulose nanofibrils are nano-scale materials with a diameter of several tens of nanometers. Cellulose nanofibrils' excellent mechanical and barrier properties make them attractive materials in the packaging industry. The morphology and crystallinity of obtained nano-cellulose greatly depend on the raw materials and the nano-fibrilization process. In this study, we investigated the effect of morphology and crystal structure of cellulose nanofibrils on coating performance, transparency, and barrier properties. Cellulose nanofibrils with a narrow diameter, high crystallinity and negative ion were fabricated as the concentration of the sulfuric acid was increased. As a result, post-treated cellulose nanofibrils could be easily coated due to narrow diameter and introduction of negative ion, and enhance oxygen barrier properties via the densely interconnected nanofiber surface.
| Original language | English |
|---|---|
| Pages (from-to) | 32-37 |
| Number of pages | 6 |
| Journal | Polymer (Korea) |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2019 |
Bibliographical note
Publisher Copyright:© 2019 The Polymer Society of Korea. All rights reserved.
Keywords
- Cellulose nanoflbril
- Coating
- Crystallinity
- Oxygen barrier
- Sulfuric acid treatment