Miscibility study of thermoplastic starch/polylactic acid blends: Thermal and superficial properties

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dc.contributor.authorFonseca García, Abril
dc.contributor.authorOsorio, Brayan Hernández
dc.contributor.authorAguirre Loredo, Rocio Yaneli
dc.contributor.authorCalambas, Heidy Lorena
dc.contributor.authorCaicedo, Carolina
dc.date.accessioned2025-04-07T20:25:50Z
dc.date.available2025-04-07T20:25:50Z
dc.date.issued2022-10-01
dc.description.abstractIn this work, the miscibility of blends of thermoplastic Achira Starch (AS) and polylactic acid (PLA) was evaluated, assisted by Pluronic® F127 an amphiphilic triblock copolymer that acts as a surfactant and promotes the reduction of surface tension among AS and PLA in solution by emulsion stabilization. Different formulations of AS/PLA blends were obtained at 75:25, 50:50, and 25:75 containing 0 %, 4 %, and 8 % of Pluronic® F127, and glycerol was used as a plasticizer. Solvent casting was the method used to obtain blended polymeric films, which were characterized by Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Xray diffraction (XRD), Thermogravimetric Analysis (TGA), differential scanning calorimetry (DSC) and wettability by contact angle measurements. The results demonstrate that miscibility of PLA in AS or vice versa was achieved. The stability of emulsion and posterior drying of the different formulations allows the production of films for packaging, pharmaceutical, or biomedical applications.
dc.identifier.citationCalambás Pulgarin, H. L., Caicedo, C., & López, E. F. (2022). Effect of surfactant content on rheological, thermal, morphological and surface properties of thermoplastic starch (TPS) and polylactic acid (PLA) blends. Heliyon, 8(10). https://doi.org/10.1016/j.heliyon.2022.e10833
dc.identifier.issn01448617
dc.identifier.urihttps://repositorio.usc.edu.co/handle/20.500.12421/6360
dc.language.isoen
dc.subjectAchira starch
dc.subjectPLA
dc.subjectNATURAL SCIENCES::Physics::Astronomy and astrophysics::Planetary system
dc.subjectPolymeric blend films
dc.subjectEmulsion
dc.titleMiscibility study of thermoplastic starch/polylactic acid blends: Thermal and superficial properties
dc.typeArticle

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