Processing Biodegradable Blends of Hemicellulose with Polyhydroxybutyrate and Poly (Lactic Acid)
نویسندگان
چکیده
The bottleneck of hemicellulose as a bio-based material is its processability and property drawbacks (softening hydrophilicity). Thus, mixing other biopolymers can be an alternative. This article proposes blending (10−50 wt%) with polyhydroxybutyrate (PHB) poly (lactic acid) (PLA), using acetic acid chloroform casting solvents to improve thermal properties. materials were thermally (TGA - thermogravimetric analysis), chemically (FTIR Fourier transformer infrared) morphologically (SEM scanning electron microscopy) characterized. Finally, multicriteria decision analysis (MCDA) evaluated the materials’ properties identify optimum combination (casting solvent, biopolymer hemicelluloses proportion) for producing optimal blend. MCDA established that blend hemicellulose:PHB (10:90 wt/wt) produced was considering melting temperature crystallinity criteria. Moreover, higher concentration in blends decreased success rate, indicating worst PLA showed degradation than PHB. PHB demonstrated improved when compared chloroform, revealing potential solvent.
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ژورنال
عنوان ژورنال: Materials Research-ibero-american Journal of Materials
سال: 2023
ISSN: ['1980-5373', '1516-1439']
DOI: https://doi.org/10.1590/1980-5373-mr-2022-0390