Effect of PBAT on physical, morphological, and mechanical properties of PBS/PBAT foam

Abstract

This study examines the effect of poly(butylene adipate- co-terephthalate) (PBAT) content on the physical, morphological, and mechanical properties of poly(butylene succinate) (PBS)/PBAT foam. A compression molding technique was used to prepare the PBS/PBAT foam using the chemical blowing agent azodicarbonamide and the cross-linking agent dicumyl peroxide. The chemical structure and morphological properties of PBS/PBAT foam were examined via Fourier transform infrared and scanning electron microscopy techniques, respectively, whereas tensile and flexural properties were investigated using a universal testing machine. The results reveal that the incorporation of PBAT barely enhances the viscosity of the PBS/PBAT blend, producing only minor changes in the average cell size of PBS/PBAT foam. However, increasing the PBAT content contributes to a relatively significant improvement in the flexibility and toughness of PBS/PBAT foam, where a decrease in Young’s modulus and tensile strength of the PBS/PBAT foam is observed compared with those of the PBS foam. Similar behavior to the tensile results is noticed for the flexural properties of the neat and PBS/PBAT foams.

Characterization and Biodegradability of Rice Husk-Filled Polymer Composites

“…The TPRH36/24 and TPS36/24 were prepared using a PBAT:PBS ratio of 36:24. Both the composites with more incorporation of PBS exhibited better tensile strength and Young’s modulus, but lower elongation at break when compared with TPRH48/12 and TPS48/12, which is consistent with the work of Boonprasertpoh et al [ 29 ]. This shows that when both polymers (PBS and PBAT) were at a comparable amount, the co-continuous phase occured.…”

“…The PBAT/PBS/TPRH composites prepared in this work exhibited better tensile strength and Young’s modulus but lower elongation at break than commercial PBAT. For the injection molding process, tensile strength, Young’s modulus, and elongation at break required are 11.70 MPa [ 29 ], 78.13 MPa [ 29 ] and 9% [ 48 ]. Thus, all the samples prepared in this work are applicable for the injection molding process as they possess the required mechanical properties.…”

Poly(ε‐caprolactone): A potential polymer for biodegradable food packaging applications

“…PCL is found to be compatible with natural and synthetic polymers such as chitosan, hydroxyapatite (HA), polyethylene glycol (PEG), polyurethane (PU), oxazolines, polyethylene oxide (PEO), PVA PLA, PLGA and starch 7,71–73 . For example, PCL when blended with starch (nearly 45%) results into the fully biodegradable blends where the addition of starch enhances the biodegradation rate of PCL due to augmentation of hydrolysis reactions 74 .…”

From gas release to foam synthesis, the second breath of blowing agents

“…A lot of patents and publications were published using this CBA, demonstrating the interest of both academic and industrial scientists. [72][73][74][75][76] Furthermore, ADC is not the only azo-compound used, for example, azobisisobutyronitrile (scheme 7)…”