Morphology, Rheological and Thermo-Mechanical properties of TLCP/PCT Blends Fabricated by Melt-compounding
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초록
내용
Thermotropic liquid crystalline aromatic polyesters (TLCPs), based on copolyesters of hydroxynaphthoic acid and hydroxybenzoic acid, have been received much attention in the field of engineering plastics owing to their excellent properties such as low melt viscosity, chemical resistance, thermal endurance, and mechanical properties. Poly(cyclohexylenedimethylene terephthalate) (PCT) is a thermoplastic and semi-crystalline polyester with good chemical resistance, dimensional stability, and processibility at elevated temperatures. In this study, TLCP/PCT blends with different mixing ratios were fabricated via melt-compounding. The morphology and microstructures of the blends were characterized by using SEM, FT-IR, and NMR. The crystallization kinetics, thermal transition, and thermal stability, rheological and mechanical properties of the blends were investigated by using DSC, TGA, rheometer, and DMA.