| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Crab-on-a-Tree: All Bio-Renewable, Optical-and-Radio Frequency Transparent Barrier Nanocoating for Food Packaging |
| 초록 |
Plastic packaging effectively protects foods from mechanical, microbial, and chemical damage, but oxygen permeates these plastics to degrade foods. Improving the gas barrier usually requires metallic or halogenated polymeric coatings; however, both often cause environmental problems and block visible light and electromagnetic signals. We report a unique design of a highly flexible and visible light and radio wave transparent coating based on biomaterials exclusively. By taking advantages of the spray-assisted layer-by-layer assembly of cellulose nanofibers and chitin nanowhiskers, we achieved the OTR value less than 0.5 mLm-2day-1. The significant barrier properties are attributed to the synergetic interplay between the highly crystalline bio-nanomaterials and they were maintained even under various conditions. This “crab-on-a-tree” nanocoating holds high potential as a biocompatible and optical-and-digital transparent future packaging application. |
| 저자 |
김태형1, Thang Hong Tran2, 황성연2, 박제영2, 오동엽2, 김병수3
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| 소속 |
1UNIST, 2한국화학(연), 3연세대 |
| 키워드 |
cellulose nanofiber; chitin nanowhisker; layer-by-layer; gas barrier
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| E-Mail |
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