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Melt-processing of ...
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Cailloux, JonathanUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia
(author)
Melt-processing of cellulose nanofibril/polylactide bionanocomposites via a sustainable polyethylene glycol-based carrier system
- Article/chapterEnglish2019
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LIBRIS-ID:oai:research.chalmers.se:1c02520d-21e6-4e84-85a7-88725786b517
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https://research.chalmers.se/publication/511874URI
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https://doi.org/10.1016/j.carbpol.2019.115188DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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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.
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Raquez, Jean MarieUniversite de Mons
(author)
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Lo Re, Giada,1971Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)giadal
(author)
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Santana, OrlandoUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia
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Bonnaud, LeilaUniversite de Mons
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Dubois, PhilippeUniversite de Mons
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Maspoch, Maria LluïsaUniversitat Politecnica de Catalunya,Polytechnic University of Catalonia
(author)
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Universitat Politecnica de CatalunyaUniversite de Mons
(creator_code:org_t)
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In:Carbohydrate Polymers: Elsevier BV2240144-8617
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