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Article

The Impact of Filler Geometry on Polylactic Acid-Based Sustainable Polymer Composites

1
Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
2
Department of Mechanical Engineering, Koszalin University of Technology, Raclawicka 15-17, 75-620 Koszalin, Poland
3
Biorefining and Advanced Materials Research Center, Scotland’s Rural College (SRUC), Kings Buildings, Edinburgh EH9 3JG, UK
4
Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh 201314, India
*
Author to whom correspondence should be addressed.
Academic Editors: Rui L. Reis and Emanuel M. Fernandes
Molecules 2021, 26(1), 149; https://doi.org/10.3390/molecules26010149
Received: 25 November 2020 / Revised: 25 December 2020 / Accepted: 28 December 2020 / Published: 31 December 2020
(This article belongs to the Special Issue Lignocellulosic Materials)
Recently, biocomposites have emerged as materials of great interest to the scientists and industry around the globe. Among various polymers, polylactic acid (PLA) is a popular matrix material with high potential for advanced applications. Various particulate materials and nanoparticles have been used as the filler in PLA based matrix. One of the extensively studied filler is cellulose. However, cellulose fibres, due to their hydrophilic nature, are difficult to blend with a hydrophobic polymer matrix. This leads to agglomeration and creates voids, reducing the mechanical strength of the resulting composite. Moreover, the role of the various forms of pure cellulose and its particle shape factors has not been analyzed in most of the current literature. Therefore, in this work, materials of various shapes and shape factors were selected as fillers for the production of polymer composites using Polylactic acid as a matrix to fill this knowledge gap. In particular, pure cellulose fibres (three types with different elongation coefficient) and two mineral nanocomponents: precipitated calcium carbonate and montmorillonite were used. The composites were prepared by a melt blending process using two different levels of fillers: 5% and 30%. Then, the analysis of their thermomechanical and physico-chemical properties was carried out. The obtained results were presented graphically and discussed in terms of their shape and degree of filling. View Full-Text
Keywords: polylactic acid composites; calcium carbonate; montmorillonite; cellulose fibres polylactic acid composites; calcium carbonate; montmorillonite; cellulose fibres
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MDPI and ACS Style

Leluk, K.; Frąckowiak, S.; Ludwiczak, J.; Rydzkowski, T.; Thakur, V.K. The Impact of Filler Geometry on Polylactic Acid-Based Sustainable Polymer Composites. Molecules 2021, 26, 149. https://doi.org/10.3390/molecules26010149

AMA Style

Leluk K, Frąckowiak S, Ludwiczak J, Rydzkowski T, Thakur VK. The Impact of Filler Geometry on Polylactic Acid-Based Sustainable Polymer Composites. Molecules. 2021; 26(1):149. https://doi.org/10.3390/molecules26010149

Chicago/Turabian Style

Leluk, Karol, Stanisław Frąckowiak, Joanna Ludwiczak, Tomasz Rydzkowski, and Vijay K. Thakur 2021. "The Impact of Filler Geometry on Polylactic Acid-Based Sustainable Polymer Composites" Molecules 26, no. 1: 149. https://doi.org/10.3390/molecules26010149

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