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Melt-processing of cellulose nanofibril/polylactide bionanocomposites via a sustainable polyethylene glycol-based carrier system

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10.1016/j.carbpol.2019.115188
 
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hdl:2117/170741

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Cailloux, JonathanMés informacióMés informació
Raquez, Jean-Marie
Lo Re, Giada
Santana Pérez, Orlando OnofreMés informacióMés informacióMés informació
Bonnaud, Leila
Dubois, Philippe
Maspoch Rulduà, Mª LluïsaMés informacióMés informacióMés informació
Document typeArticle
Defense date2019-08-10
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
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Abstract
Considering the appealing need for an industrially viable approach, this works aims at demonstrating the rapid and easy melt processing of Polylactide (PLA) bio-composites reinforced with cellulose nanofibrils (CNF). For this purpose and against to their high propensity to self-aggregate on processing, an aqueous CNF-based suspension in the presence of polyethylene glycol (PEG) followed by a gentle drying way were performed to provide melt-processable CNF-based masterbatches. Morphological observations coupled with rheological analyses confirmed how the strategy of the PEG-based masterbatch approach facilitated the formation of a well-dispersed and strongly interacting CNF network within the polymeric matrix. At temperatures above Tg, thermo-mechanical characterization showed that the load-bearing capacity of the web-like CNF network was even more apparent and counteracted the PEG plasticizing effect. Thermogravimetric analysis evidenced that in the case of selective positioning at the PLA-PEG interface, CNF mitigated the negative impact of PEG addition on the PLA thermal stability. These results revealed the successfulness of our sustainable organic solvent-free approach to prepare melt-processable CNF masterbatches, which can be readily converted into conventional industrially scalable melt-processing techniques.
CitationCailloux, J. [et al.]. Melt-processing of cellulose nanofibril/polylactide bionanocomposites via a sustainable polyethylene glycol-based carrier system. "Carbohydrate polymers", 10 Agost 2019, vol. 224, p. 115188:1-115188:9. 
URIhttp://hdl.handle.net/2117/170741
DOI10.1016/j.carbpol.2019.115188
ISSN0144-8617
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0144861719308550
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  • Departament de Ciència dels Materials i Enginyeria Metal·lúrgica - Articles de revista [961]
  • e-PLASCOM - Plàstics i Compòsits Ecològics - Articles de revista [42]
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