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Morphology of Styetched Poly(ethylene terephthalate)/ Poly(m-xylene adipamide) Blends  

남주영 (인하대학교 화공생명공학부, 기능성분자신소재연구센타)
박수현 (인하대학교 화공생명공학부, 기능성분자신소재연구센타)
이광희 (인하대학교 화공생명공학부, 기능성분자신소재연구센타)
정지원 (인하대학교 화공생명공학부, 기능성분자신소재연구센타)
박동화 (인하대학교 화공생명공학부, 기능성분자신소재연구센타)
Publication Information
Polymer(Korea) / v.27, no.4, 2003 , pp. 313-322 More about this Journal
Abstract
The morphology of poly(ethylene terephthalate) (PET)/poly(m-xylene adipamide) (MXD-6) blends, which was prepared by adding compatibilizer and interchange reaction agent, was investigated. The morphological change in the stretched blend films was also studied. The stretched film showed a dispersed MXD-6 fibril. This fibril became finer with increasing draw ratio (DR). The addition of compatibilizer and interchange reaction agent had no effect on the improvement of interfacial adhesion but caused a defect between the continuous phase and the dispersed phase, leading to the formation of irregular fibril. The change in the superstructure of blends with composition and draw ratio was examined with light scattering (LS). The H$\sub$v/ LS patterns showed a double-cross type pattern consisting of a broad rod-like pattern and a sharp cross streak. On the basis of the model calculation of the H$\sub$v/ pattern, it was found that the appearance of the double-cross type pattern was attributed to the stacking of crystals oriented along the draw direction. The crystals were gradually oriented to the stretching direction with draw ratio. As a result, the high level of orientation was obtained fur the sample of draw ratio is 6.0.
Keywords
MXD-6; AX8920, light scattering, stretched blend film;
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