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Published in: Cellulose 5/2022

21-01-2022 | Original Research

Surface energy properties of lignin particles studied by inverse gas chromatography and interfacial adhesion in polyester composites with electromagnetic transparency

Authors: Mayu Suzuki, Anett Kondor, Yuma Sakuraba, Orlando J. Rojas, Mariko Ago

Published in: Cellulose | Issue 5/2022

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Abstract

We introduce a simple spray drying method for the scaleup production of spherical organic (lignin) particles with sizes between 0.85 and 1.57 µm. We assess the surface energy of the lignin particles by inverse gas chromatography to reveal their role in composites synthesized with unsaturated polyester. Such nanocomposites are shown to be transparent to electromagnetic irradiation (millimeter wave bands). The permittivity and tanδ of the composite material reached values 3.01 and 0.01 at 28 GHz with 10% lignin content. Vinyl groups were introduced on the surface of the particles to achieve enhanced interfacial adhesion, and resulted in a reduced relative permittivity (2.75). Together with wave interactions, the mechanical and thermal properties of the composites are put in perspective, opening new opportunities in the development of bio-based devices for 5G high-speed communication.

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Appendix
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Literature
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Metadata
Title
Surface energy properties of lignin particles studied by inverse gas chromatography and interfacial adhesion in polyester composites with electromagnetic transparency
Authors
Mayu Suzuki
Anett Kondor
Yuma Sakuraba
Orlando J. Rojas
Mariko Ago
Publication date
21-01-2022
Publisher
Springer Netherlands
Published in
Cellulose / Issue 5/2022
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-022-04429-5

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