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논문 기본 정보

자료유형
학술저널
저자정보
Jang, Kwangho (Applied Rheology Center, Department of Chemical and Biomolecular Engineering, Sogang University) Lee, Jae Wook (Applied Rheology Center, Department of Chemical and Biomolecular Engineering, Sogang University) Hong, In-Kwon (Division of Chemical Engineering, Dankook University) Lee, Sangmook (Division of Chemical Engineering, Dankook University)
저널정보
한국유변학회 Korea-Australia rheology journal Korea-Australia rheology journal 제25권 제3호
발행연도
2013.1
수록면
145 - 152 (8page)

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Bio-based PETG (bio-based glycol modified polyethylene terephthalate, Ecozen T95) / clay (organo-modified montmorillonite, OMMT, C10A) nanocomposites were prepared by co-rotating twin screw extruder attached with supercritical carbon dioxide ($scCO_2$) injection system. The effects of nano-clay and $scCO_2$ on the properties of PETG/clay nanocomposites were investigated by measuring thermal, rheological, tensile, impact, and barrier properties. The thermal and mechanical properties decreased with increasing nano-clay content, but they recovered or even exceeded the properties of neat PETG as $scCO_2$ was added. It was verified due to a good dispersion of the nano-clay in PETG matrix for PETG/clay nanocomposites by XRD, SEM, and TEM. It was thought that $scCO_2$ could be an effective exfoliation agent for many nanocomposites systems as well as for bio-based PET/clay nanocomposites.

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