Investigation on synthesis, structure and degradability of starch based bioplastics. (2022) - Srinivasa Rao, L.
Highlights: Degradable starch based bio-plastic blends were synthesized. XRD spectra discovered the both semi-crystalline and amorphous natures of the samples. FTIR spectra confirmed the plasticity of the samples. Decomposition test established the degradability of the samples. Abstract: Three different types of starch based bioplastic blends were synthesized. The FTIR spectra, XRD spectra and biodegradability test were used to characterize them. The FTIR spectra have shown the bands attributed to the stretching vibrations of hydroxyl groups (O-H) and carbonyl groups -CH, -CH2, C=O, C=C, C-O-C etc. The FTIR spectra confirmed the plastic nature of the samples by tracing the different functional groups of regular plastics. The XRD spectra have depicted the short range periodicity of the samples. Two samples have exhibited feeble diffraction peaks at 15.5°, 18.2°, 21.5° and 23.2°. The decomposition test found that these samples have appreciable percentage of volume degradability in the soil.