| 초록 |
Food packaging is a critical technology addressing the ever increasing demands for convenience, freshness, ease, shelf life, safety and security of food products. The main purpose of food packaging is to protect the food from microbial and chemical contamination, oxygen, water vapour and light. In terms of functionality and economics, packaging design is very important because the packaging material must have appropriate gas permeability, and mechanical and thermal properties for the packaged food. Thus, polymers are currently the most widely used food packaging material. olypropylene (PP) is a thermoplastic resin with great intensity, superior chemical and heat resistance characteristics, and stable transparency. However, it has low impact strength at low temperatures and high gas permeability. In this work, we have tried to improve of barrier property by using the barrier materials of other chemical structure. |
