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Effect of dibutyl itaconate on plasticization efficiency of a REX processed polylactide with peroxides

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  • Additional Information
    • Contributors:
      Universitat Politècnica de València. Escuela Politécnica Superior de Alcoy - Escola Politècnica Superior d'Alcoi; European Commission; GENERALITAT VALENCIANA; AGENCIA ESTATAL DE INVESTIGACION; Agencia Estatal de Investigación; UNIVERSIDAD POLITECNICA DE VALENCIA; Universitat Politècnica de València; MINISTERIO DE UNIVERSIDADES E INVESTIGACION
    • Publication Information:
      Elsevier
    • Publication Date:
      2023
    • Collection:
      Universitat Politécnica de Valencia: RiuNet / Politechnical University of Valencia
    • Abstract:
      [EN] This work reports the effect of a reactive extrusion (REX) process on polylactide (PLA) based formulations plasticized with dibutyl itaconate (DBI). As DBI contains a carbon-carbon double bond, it is suitable for reactive extrusion. REX was carried out in a co-rotating twin extruder with the addition of two different organic peroxides. The main aim of using REX during the blending of the DBI plasticizer with PLA is to improve the interaction between them so the obtained final properties of the formulations could be improved. Plasticization process allowed to improve the ductile properties of PLA, by using REX, an improvement on the tensile strength was obtained with a no remarkable change in ductility. The thermal characterization also revealed that the glass transition temperature Tg was reduced for all formulations including DBI. REX with DBI provided a slight increase in Tg and this effect was also evident in thermomechanical properties. Regarding the thermal degradation behaviour, the plasticizer reduced the onset degradation and the maximum degradation rate, while a slight improvement on thermal stability was observed by using REX with organic peroxides. Finally, plasticizer migration in water was observed in conventional extruded PLA/DBI formulations, while REX provided improved behaviour against migration. ; This research is a part of the grant PID2020-116496RB-C22, funded by MCIN/AEI/10.13039/501100011033 and the grant TED2021-131762A-I00, funded by MCIN/AEI/10.13039/501100011033 and by the European Union "NextGenerationEU"/PRTR. Authors also thank Generalitat Valenciana-GVA for funding this research through the grant numbers AICO/2021/025 and CIGE/2021/094. Funded with Aid for First Research Projects (PAID-06-22) , Vice-rectorate for Research of the Universitat Politecnica de Valencia (UPV) . J. Ivorra-Martinez wants to thank FPU19/01759 grant funded by MCIN/AEI/10.13039/501100011033 and by ESF Investing in your future. J. Gomez-Caturla wants to thank FPU20/01732 grant funded by ...
    • Relation:
      Polymer Testing; info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116496RB-C22/ES/OBTENCION DE NANOCOMPOSITES DE ORIGEN BIO A PARTIR DE RESIDUOS LIGNOCELULOSICOS PARA SU USO EN FILMS MULTICAPA/; info:eu-repo/grantAgreement/GVA//CIGE%2F2021%2F094//Desarrollo de materiales técnicos compuestos sostenibles de alto rendimiento medioambiental a partir de la revalorización de residuos de algas/; info:eu-repo/grantAgreement/MICIU//FPU19%2F01759/ES/PROCESADO Y OPTIMIZACIÓN DE MATERIALES AVANZADOS DERIVADOS DE ESTRUCTURAS PROTEICAS Y COMPONENTES LIGNOCELULÓSICOS/; info:eu-repo/grantAgreement/MICIU//FPU20%2F01732/ES/Desarrollo y caracterización de materiales de alto rendimiento medioambiental derivados de residuos de la industria de los cítricos bajo un planteamiento de economía circular y desarrollo sostenible/; info:eu-repo/grantAgreement/GVA//AICO%2F2021%2F025/ES/NUEVOS MATERIALES SOSTENIBLES DERIVADOS DE LA REVALORIZACIÓN DE RESIDUOS DE LA INDUSTRIA DE CÍTRICOS/CitricNewLife/; https://doi.org/10.1016/j.polymertesting.2023.108059; http://hdl.handle.net/10251/203763
    • Accession Number:
      10.1016/j.polymertesting.2023.108059
    • Online Access:
      http://hdl.handle.net/10251/203763
      https://doi.org/10.1016/j.polymertesting.2023.108059
    • Rights:
      http://creativecommons.org/licenses/by-nc-nd/4.0/ ; info:eu-repo/semantics/openAccess
    • Accession Number:
      edsbas.FC56D577