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폴리프로필렌수지의 결정화거동에서 연신의 영향에 대한 연구
옥재훈,송기국 慶熙大學校 材料科學技術硏究所 1995 材料科學技術硏究論集 Vol.8 No.-
The effect of processing histories on melting and crystallization behaviors of polypropylenes has been investigated by using thermal analysis techniques. Orientation of samples results in a shift of the melting point to higher temperature. The increase in the melting point with orientation is attributed to the increase of ordered structures in samples. Isothermal crystallization of the polymers with different draw ratios has been carried out to understand the crystallization mechanism and kinetics.