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

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ID: 63883
2019
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Ranked #36 of 138 articles by views in Carbohydrate polymers

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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 T, 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.
Reference Key
cailloux2019meltprocessingcarbohydrate Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Cailloux, Jonathan;Raquez, Jean-Marie;Lo Re, Giada;Santana, Orlando;Bonnaud, Leila;Dubois, Philippe;Maspoch, Maria Lluïsa;
Journal Carbohydrate polymers
Year 2019
DOI
S0144-8617(19)30855-0
URL
Keywords
cellulose nanofibrils polyethylene glycol polylactide melt-processing sustainable process

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