Miscibility of Crystalline/Amorphous/Crystalline Biopolymer Blends from PLLA/PDLLA/PHB with Additives |
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| Authors: | Ahmed M. El-Hadi |
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| Affiliation: | 1. Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia;2. Department of Basic Science, Higher Institute of Engineering and Technology, El Arish, North Sinai, Egypt |
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| Abstract: | Miscibility of three biopolymers (PLLA, PDLLA and PHB) blends were investigated by POM, WAXD, FTIR, and DSC. DSC verified the thermal properties of biopolymer blend with PVAc as a compatibilizer, and TBC as plasticizer. Some change in glass transition temperature (Tg) of biopolymer blends from 60°C to 0.7°C. The spherulitic morphology of blend 9 changing by addition more PHB (50%), the results dendritic spherulites. The adding PHB to PLLA blends make certain shifting in the diffraction peak from 2 ? = 16.9° to 2 ? = 16.6° and the carbonyl group shifts from 1752 cm?1 to 1732 cm?1 in blends, demonstrating polar interactions between them. |
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| Keywords: | Biopolymer blends DSC FT-IR PDLLA PHB PLLA WAXD |
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