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Cellulose Nanostructure-Based Biodegradable Nanocomposite Foams: A Brief Overview on the Recent Advancements and Perspectives

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DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and, Industrial Research, Pretoria 0001, South Africa
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Department of Chemical Sciences, University of Johannesburg, Doornfontein 2028, South Africa
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Author to whom correspondence should be addressed.
Polymers 2019, 11(8), 1270; https://doi.org/10.3390/polym11081270
Received: 11 June 2019 / Revised: 20 July 2019 / Accepted: 29 July 2019 / Published: 31 July 2019
The interest in designing new environmentally friendly materials has led to the development of biodegradable foams as a potential substitute to most currently used fossil fuel–derived polymer foams. Despite the possibility of developing biodegradable and environmentally friendly polymer foams, the challenge of foaming biopolymers still persists as they have very low melt strength and viscosity as well as low crystallisation kinetics. Studies have shown that the incorporation of cellulose nanostructure (CN) particles into biopolymers can enhance the foamability of these materials. In addition, the final properties and performance of the foamed products can be improved with the addition of these nanoparticles. They not only aid in foamability but also act as nucleating agents by controlling the morphological properties of the foamed material. Here, we provide a critical and accessible overview of the influence of CN particles on the properties of biodegradable foams; in particular, their rheological, thermal, mechanical, and flammability and thermal insulating properties and biodegradability. View Full-Text
Keywords: cellulose nanoparticles; biodegradable polymers; nanocomposites; foaming; physical properties cellulose nanoparticles; biodegradable polymers; nanocomposites; foaming; physical properties
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Motloung, M.P.; Ojijo, V.; Bandyopadhyay, J.; Ray, S.S. Cellulose Nanostructure-Based Biodegradable Nanocomposite Foams: A Brief Overview on the Recent Advancements and Perspectives. Polymers 2019, 11, 1270.

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