| 초록 |
Environmental concerns and strict regulation have increased interest in biomass-based polymer composite. Cellulose nanofiber(CNF) extracted from wood is environmentally and has excellent properties, so there are many studies for compounding it with polymer. However, there is a problem that it is difficult to improve the properties of the composite due to low dispersibility and limited thermal resistance in the melt-mixing process. To overcome these problem silica nanoparticles on the CNF surface by a sol-gel method. Ultimately, the wettability of the surface was controlled so that the surface of CNF could be sufficiently protected while having a low silica content. By reducing the degree of exposure of CNF, it is possible to solve the thermal-oxidation problem that occurs during compounding, thereby improving heat resistance and dispersibility in the polymer. Mechanical and rheological properties of the CNF/Polymer composite were analysed. |
