Binary Green Blends Based on Polylactide and Glycidyl Methacrylate-grafted Polyhydroxybutyrate
발표자
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초록
내용
Polylactide (PLA) has gained commercial importance due to its renewability, biocompatibility, biodegradability, and excellent thermo-mechanical properties. But PLA has some disadvantages, such as slow crystallization rate, brittleness, low heat distortion temperature, and low thermal resistance. Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate (PHA), a polymer belonging to the polyesters class that is of interest as bio-derived and biodegradable plastics. In this study, to improve the compatibility of PLA and PHB, glycidyl methacrylate (GMA) was grafted onto PHB. Then PLA was melt-compounded with PHB-g-GMA to improve its physical properties. The morphological features of PLA/PHB-g-GMA blends were characterized with the aid of POM and SEM. The thermal transition, thermal stability, mechanical, and rheological properties were analyzed using DSC, TGA, DMA, UTM, and rheometer.