期刊
JOURNAL OF MATERIALS SCIENCE
卷 50, 期 6, 页码 2587-2593出版社
SPRINGER
DOI: 10.1007/s10853-015-8826-2
关键词
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资金
- National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2010-0025175]
- Fundamental R&D Program for Core Technology of Materials - Ministry of Trade, Industry & Energy, Republic of Korea
- Civil & Military Technology Cooperation Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2013M3C1A9055407]
Pure chitosan and carbon nanotube (CNT)/chitosan nanocomposite films were fabricated via a sublimation-drying process at -196 A degrees C, during which polymeric repulsion generates unique pores with multi-layered structures. The films were then transformed into multi-layered and vertically aligned multi-layered (VAM) structures by compression. Due to the cross-linking between layers, the films prepared at -196 A degrees C showed significantly better mechanical properties than the films prepared at -78 and -20 A degrees C. Furthermore, a peculiar phenomenon was observed in that pure chitosan which exhibited better mechanical properties than the nanocomposites. To explain these results, we suggest a model in which the VAM structure supports more load than the CNT fillers.
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