Functional Cellulose-Based Materials: Synthesis and Application

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (25 December 2022) | Viewed by 1661

Special Issue Editors

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
Interests: cellulose; hemicellulose; nanocellulose; biocomposites; applications

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Guest Editor
Department of Chemical Engineering Materials Environment, University of Rome La Sapienza, 00184 Roma, Italy
Interests: fibre/matrix interfacial modification and assessment; use of plant fibres in biopolymers (biodegradable or from renewable resources) for designing biocomposites with reduced environmental impact; combination of natural fibres (mineral and vegetal) in hybrid composites for designing sustainable composites for semi-structural applications; valorization of agro-industrial wastes as fillers in thermoplastic matrices (micro- and nanoscale); durability of composite materials based on thermoplastic and thermoset matrices
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Special Issue Information

Dear Colleagues,

Cellulose is one of the oldest raw materials that has been used by human for hundreds of years. Additionally, it is also the most common organic compound on Earth. Due to its unique structure and excellent properties, such as renewability, biocompatibility, biodegradability, chemical stability, and derivatizabilty, cellulose has diverse applications, e.g., papers, textiles, building materials, composites, among others. However, there are still a number of challenges that hinder the use of this readily available and renewable natural polymer. One drawback of cellulose is its limited processability, which is mainly caused by the large proportion of intra- and inter-molecular hydrogen bonding systems. Until now, the traditional processes for cellulose conversion, such as the viscose process, still dominate the cellulose product market.

Science and technology are starting to turn towards renewable resources and eco-friendly processes. Materials based on natural polymers, including cellulose, have thus attracted great attention. In particular, the development of new and “green” solvents for cellulose provides efficient and eco-friendly platforms for cellulose shaping and chemical modification. More recently, new frontiers such as nanocelluloses and advancements in nanotechnologies also offer great opportunities in the field of functional materials over a broad range of applications.

Dr. Yian Chen
Prof. Dr. Fabrizio Sarasini
Guest Editors

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Keywords

  • cellulose
  • functional materials
  • smart materials
  • nanocomposites
  • nanocellulose
  • regenerated cellulose
  • cellulose solvents

Published Papers (1 paper)

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Research

13 pages, 4055 KiB  
Article
Natural Hollow Fiber-Derived Carbon Microtube with Broadband Microwave Attenuation Capacity
by Yanfang Zhao, Aichun Long, Pengfei Zhao, Lusheng Liao, Rui Wang, Gaorong Li, Bingbing Wang, Xiaoxue Liao, Rentong Yu and Jianhe Liao
Polymers 2022, 14(21), 4501; https://doi.org/10.3390/polym14214501 - 24 Oct 2022
Cited by 5 | Viewed by 1242
Abstract
Constructing hierarchical structures is indispensable to tuning the electromagnetic properties of carbon-based materials. Here, carbon microtubes with nanometer wall thickness and micrometer diameter were fabricated by a feasible approach with economical and sustainable kapok fiber. The carbonized kapok fiber (CKF) exhibits microscale pores [...] Read more.
Constructing hierarchical structures is indispensable to tuning the electromagnetic properties of carbon-based materials. Here, carbon microtubes with nanometer wall thickness and micrometer diameter were fabricated by a feasible approach with economical and sustainable kapok fiber. The carbonized kapok fiber (CKF) exhibits microscale pores from the inherent porous templates as well as pyrolysis-induced nanopores inside the wall, affording the hierarchical carbon microtube with excellent microwave absorbing performance over broad frequency. Particularly, CKF-650 exhibits an optimized reflection loss (RL) of −62.46 dB (10.32 GHz, 2.2 mm), while CKF-600 demonstrates an effective absorption bandwidth (RL < −10 dB) of 6.80 GHz (11.20–18.00 GHz, 2.8 mm). Moreover, more than 90% of the incident electromagnetic wave ranging from 2.88 GHz to 18.00 GHz can be dissipated by simply controlling the carbonization temperature of KF and/or the thickness of the carbon-microtube-based absorber. These encouraging findings provide a facile alternative route to fabricate microwave absorbers with broadband attenuation capacity by utilizing sustainable biomass. Full article
(This article belongs to the Special Issue Functional Cellulose-Based Materials: Synthesis and Application)
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