Improvement of Poly(lactide) Ductile Properties by Plasticization with Biobased Tartaric Acid Ester
نویسندگان
چکیده
Diethyl l-tartrate (DET) is used as a biobased plasticizer for poly(lactide) (PLA) formulations with improved ductile properties without compromising biodegradation. Different weight percentages (wt.%) of DET in the 0–50 wt.% range are added to PLA by melt compounding and subsequently processed injection molding. The effect on mechanical, thermal, thermo-mechanical, morphology, biodegradation, crystallinity studied. Addition 20 leads noticeable increase elongation at break up values 567%, which quite an interesting result considering extreme brittleness PLA. These results verified field emission scanning electron microscopy (FESEM) images, where filament-like structures observed, indicative effective plasticization. Differential calorimetry (DSC) dynamic mechanical thermal analysis (DMTA) show that glass transition temperature drastically decreased down 23 °C sample highest amount (50 wt.%), thus increasing its ductility processability. Fourier-transformed infrared spectroscopy (FTIR) spectra there exists chemical interactions between DET. Finally, biodegradability proves developed blends fully biodegradable, achieving complete disintegration after 49 days. It observed enhanced rate
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ژورنال
عنوان ژورنال: Macromolecular Materials and Engineering
سال: 2023
ISSN: ['1439-2054', '1438-7492']
DOI: https://doi.org/10.1002/mame.202200694