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

Cailloux, JonathanUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia (författare)

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.

Raquez, Jean MarieUniversite de Mons (författare)
Lo Re, Giada,1971Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)giadal (författare)
Santana, OrlandoUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia (författare)
Bonnaud, LeilaUniversite de Mons (författare)
Dubois, PhilippeUniversite de Mons (författare)
Maspoch, Maria LluïsaUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia (författare)
Universitat Politecnica de CatalunyaUniversite de Mons (creator_code:org_t)

Av författaren/redakt...: Cailloux, Jonath ...; Raquez, Jean Mar ...; Lo Re, Giada, 19 ...; Santana, Orlando; Bonnaud, Leila; Dubois, Philippe; visa fler...; Maspoch, Maria L ...; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Kemiteknik; och Kemiska processe ...

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Kemiteknik; och Polymerteknologi

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