Morphology, Structural, Thermal, and Tensile Properties of Bamboo Microcrystalline Cellulose/Poly(Lactic Acid)/Poly(Butylene Succinate) Composites

Abstract

The present study aims to develop a biodegradable polymer blend that is environmentally friendly and has comparable tensile and thermal properties with synthetic plastics. In this work, microcrystalline cellulose (MCC) extracted from bamboo-chips-reinforced poly (lactic acid) (PLA) and poly (butylene succinate) (PBS) blend composites were fabricated by melt-mixing at 180 °C and then hot pressing at 180 °C. PBS and MCC (0.5, 1, 1.5 wt%) were added to improve the brittle nature of PLA. Field emission scanning electron microscopy (FESEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscope (FTIR), thermogravimetric analysis (TGA), differential thermogravimetry (DTG), differential scanning calorimetry (DSC)), and universal testing machine were used to analyze morphology, crystallinity, physiochemical, thermal, and tensile properties, respectively. The thermal stability of the PLA-PBS blends enhanced on addition of MCC up to 1wt % due to their uniform dispersion in the polymer matrix. Tensile properties declined on addition of PBS and increased with MCC above (0.5 wt%) however except elongation at break increased on addition of PBS then decreased insignificantly on addition of MCC. Thus, PBS and MCC addition in PLA matrix decreases the brittleness, making it a potential contender that could be considered to replace plastics that are used for food packaging.

Impact of Alkali and Silane Treatment on Hemp/PLA Composites’ Performance: From Micro to Macro Scale

“…Conversely, the A f spectrum presents peak absence/reduction at about 1735 cm −1 and 1235 cm −1 . The peak around 1735 cm −1 corresponds to C=O stretching vibration of conjugated carboxylic ester groups [19] of hemicellulose or wax [18], and the peak around 1235 cm −1 corresponds to C-O stretching of lignin acetyl groups [18,20]. Furthermore, the peak at 1635 cm −1 that shows C=O stretching in conjugated carbonyl of lignin or absorbed water is broader and attenuated [21].…”

Development of Biodegradable Composites Using Polycaprolactone and Bamboo Powder

“…Rasheed et al [ 20 ] developed biodegradable composites with microcrystalline cellulose (MCC) extracted from bamboo chips reinforced with polylactic acid (PLA) and polybutylene succinate (PBS). The biocomposites were produced by melt-mixing at 180 °C and hot-pressing at 180 °C.…”

High-pressure autohydrolysis process of wheat straw for cellulose recovery and subsequent use in PBAT composites preparation

“…However, the high strength generally required in the packaging sector limits the use of PBAT, thus, the addition of SC can be a potential solution to increase its mechanical properties (Botta et al, 2021). Moreover, the higher the crystalline index of the cellulose obtained, the more appropriate it is to be used as a reinforcing agent (Rasheed et al, 2021;Reis et al, 2014).…”