| 초록 |
Intercalated nanocomposites with poly(buthylene succinate) (PBS) incorporated between the Mica layers were synthesized from dimethyl succinate (DMS) and 1,4-butane diol (BD) by using an in-situ interlayer polymerization. The PBS nanocomposites were melt-spun at different organoclay contents to produce monofilaments. The samples were characterized by using wide angle X-ray diffraction, electron microscopy, thermal analysis, and tensile testing. The extent of the clay layer in the PBS was confirmed by using X-ray diffraction and electron microscopy, and the clay layer was found to be highly dispersed on a nanometer scale. The addition of only a small amount of organoclay was enough to improve the thermo-mechanical properties of the PBS hybrid fibers. The hybrids were extruded with various draw ratios (DRs) to examine the tensile mechanical property of the fibers. At DR=1, the ultimate strength and the initial modulus of the hybrid fibers increased with the addition of organoclay. However, when the DR was increased from 1 to 6, for example, the ultimate strength of the hybrid fibers decreased linearly and the initial modulus of the hybrid fibers monotonically increased with increasing amount of organoclay in the PBS matrix, respectively. |
