| 초록 |
Recently, organic-inorganic nanocomposites have attracted great interests since they frequently exhibit unexpected hybrid properties synergistically derived from the two components. One of the most promising composite systems would be hybrids based on organic polymers and inorganic clay minerals consisting of silicate layers. But it is difficult to intercalate organic polymer in the crystal structure of two dimensional clay layers. In this work, we prepared LDPE/APES/MMT/Compatibilizer nanocomposites through melt intercalation method . Ionomer and LDPE-graft GMA were used as the compatibilizer. The influences of the polar interaction between the APES, and the silicate layers of MMT were also investigated in the presence of ionomer or LDPE-g-GMA as a compatibilizer. It is shown that the composites with ionomer compatibilizer can make intercalation hybrid nanocomposites, which is due to some polar interaction between the LDPE and APES/Clay, while it can not be done by ionomer. The structure and properties of APES/MMT/compatibilizer hybrids were investigated by X-ray diffraction (XRD), differential scanning calorimeter (DSC), rheological characterization (RDA) and transmission electron microscope (TEM). We observed that the biodegradable polyester (APES)/clay nanocomposite possess excellent mechanical and thermal properties. |
