| 초록 |
Due to the shortage of fossil fuel resources and environmental issues, biomass-based biodegradable polymers have attracted considerable attention. In particular, increasing demand for food packaging based on petroleum-derived polymers seriously impacts ecological pollution. To this end, food packaging using Bio-based polymers attracted enormous attention. Herein, we have studied biomass-based Poly(lactic acid) (PLA) as a food packaging material. When only PLA is used for food packaging films, PLA has a poor gas barrier properties. We coated cellulose nanofibers (CNFs) on the PLA substrate to enhance the gas barrier properties. To increase the dispersion and coating properties of CNFs on the PLA film substrate, negative-charged CNFs were encapsulated by the ionic group-contained PLAs (IPLAs). In IPLA-coated CNFs, IPLA was played as a compatibilizer. We believe that applying IPLA-CNF to the combination of polyvinyl alcohol (PVA) may give rise to high-performance gas barrier properties. |
