Crystallization Behavior and Tensile Property of Poly（trimethyleneterephthalate）/Styrene-Ethylene-Buthylene-Styrene Composites

TSOU Chi-Hui^1,2,3，WU Wen-Yen⁵，KAO Bo-Jyue⁶，YANG Ming-Chien⁶，TSOU Chih-Yuan⁶，HUNG Wei-Song³

1. Department of Materials and Textiles,Oriental Institute of Technology2. Center for Thin Film Technologies and Applications,Department of Materials Engineering,Ming Chi University of Technology3. R&D Center for Membrane Technology,Department of Chemical Engineering,Chung Yuan University5. Department of Fashion Design and Merchandising,Shih Chien University6. Department of Materials Science and Engineering,National Taiwan University of Science and Technology

摘 要：Poly（trimethyleneterephthalate）（PTT）/styrene-ethylene-buthylene-styrene（SEBS）composites were prepared by melt compounding.Polarizing opticalmicroscopy was used to observe the spherulitic morphology and the crystalstructure of PTT and PTT/SEBS composites.Scanning electron microscopy was used to determine the dispersion and the compatibility of fracture surfaces of PTT and SEBS.The curves of thermalgravimetric analysis illustrated that the thermo stability decreased with increasing SEBS content.Differentialscanning calorimetry was used to investigate the crystallization behavior;and the result showed that the glass transition temperature of the compound increased with the SEBS content.The Avramiequation described the isothermalcrystallization kinetics.Stress-strain curves for PTT and PTT/SEBS composites showed that the elongation at break was enhanced with increasing SEBS content.

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