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논문 기본 정보

자료유형
학술저널
저자정보
Ko, Moon-Bae (Hyperstructured Organic Materials Research Center and School of Chemical Engineering, Seoul National University) Jho, Jae-Young (Hyperstructured Organic Materials Research Center and School of Chemical Engineering, Seoul National University) Jo, Won-Ho (Hyperstructured Organic Materials Research Center and School of Material Science and Engineering, Seoul National University) Lee, Moo-Sung (Department of Textile Engineering and Advanced Materials Research Institute, Chonnam National University)
저널정보
한국섬유공학회 Fibers and Polymers Fibers and polymers 제3권 제3호
발행연도
2002.1
수록면
103 - 108 (6page)

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The viscosity effect of matrix polymer on melt exfoliation behavior of an organoclay in poly($\varepsilon$-caprolactone) (PCL) was investigated. The viscosity of matrix polymer was controlled by changing the molecular weight of poly($\varepsilon$-eaprolactone), the processing temperature, and the rotor speed of a mini-molder. Applied shear stress facilitates the diffusion of polymer chains into the gallery of silicate layers by breaking silicate agglomerates down into smaller primary particles. When the viscosity of PCL is lower, silicate agglomerates are not perfectly broken into smaller primary particles. At higher viscosity, all of silicate agglomerates are broken down into primary particles, and finally into smaller nano-scale building blocks. It was also found that the degree of exfoliation of silicate layers is dependent upon not only the viscosity of matrix but thermodynamic variables.

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