PHBV/TPU/cellulose compounds for compostable injection molded parts with improved thermal and mechanical performance
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Altres documents de l'autoria: Sánchez-Safont, Estefanía; Arrillaga, Alex; Anakabe, Jon; Gamez-Perez, Jose; Cabedo, Luis
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PHBV/TPU/cellulose compounds for compostable injection molded parts with improved thermal and mechanical performanceData de publicació
2018-11Editor
WileyCita bibliogràfica
SÁNCHEZ‐SAFONT, Estefanía Lidón, et al. PHBV/TPU/Cellulose compounds for compostable injection molded parts with improved thermal and mechanical performance. Journal of Applied Polymer Science, 2019, 136.13: 47257.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://onlinelibrary.wiley.com/doi/full/10.1002/app.47257Versió
info:eu-repo/semantics/acceptedVersionParaules clau / Matèries
Resum
Poly(hydroxybutyrate-co-valerate) (PHBV) is a biopolymer that has gained a lot of attention because of its biodegradability,
good thermal resistance, and balanced mechanical properties with respect to some commodity ... [+]
Poly(hydroxybutyrate-co-valerate) (PHBV) is a biopolymer that has gained a lot of attention because of its biodegradability,
good thermal resistance, and balanced mechanical properties with respect to some commodity plastics. However, it presents two big limitations that hinder its potential application in replacing plastics for rigid injected parts: high cost and low toughness. Aiming at overcoming these limitations, the use of two additives in a PHBV matrix was explored: thermoplastic polyurethane (TPU) as an impact
modifier and cellulose as reinforcing filler. Compounds of PHBV with different TPUs and cellulose contents were prepared by extrusion
and, subsequently, injection molding. The morphology, thermal, and mechanical properties of the so-obtained materials were analyzed.
Also, the biodisintegrability under standard composting conditions of the studied compositions was also assessed. The results of this
work show that the obtained PHBV/TPU/cellulose compounds are biodisintegrable and show balanced properties in terms of thermal
resistance–stiffness–toughness. These properties point these compounds as potential candidates to replace commodities in rigid part
applications that require biodisintegration in their end-of-life, being able to be processed in a conventional injection molding industrial facility. [-]
Proyecto de investigación
Ministerio de Economía, Industria y Competitividad, Gobierno de España (Grant Number: AGL2015‐63855‐C2‐2‐R) ; Universitat Jaume I (Grant Numbers: UJI‐B2016‐35, B2016‐35, AGL2015‐63855‐C2‐2‐R)Drets d'accés
© 2018 Wiley Periodicals, Inc.
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