Modifying the Surface Chemistry of Cellulose and Renewable Materials

A special issue of Fibers (ISSN 2079-6439).

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 7480

Special Issue Editor


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Guest Editor
Department of Physics and Engineering, California State University Bakersfield, Bakersfield, CA 93311, USA
Interests: hydrophobic materials; cellulose; surface modification; renewable polymers

Special Issue Information

Dear Colleagues,

Cellulose is the most abundant polymer in the world, and is a renewable resource. This makes cellulose a viable candidate for substitution for other materials. However, cellulose has its own limitations. In order to overcome some of them, the surface of the cellulose could be modified in order to enhance or to add an additional functional property, for example increased hydrophobicity or hydrophilicity, antibacterial, UV-protection, adhesion, and enhanced compatibility with other materials.

This Special Issue is dedicated to the surface modification of cellulose and other renewable materials, original research papers, as well as reviews, are welcome. The goal is to gather contributions on various aspects related to surface modification methods such as plasma, chemical vapor deposition, atomic layer deposition, graft copolymerization, among many others used on any cellulose, cellulose derivatives, carbohydrates, starch, and other renewable materials in any form such as fibers, nanocrystals, aerogels, hydrogels, and nanofibers.

Dr. Luis E. Cabrales
Guest Editor

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Keywords

  • cellulose
  • fibers
  • cellulose derivatives
  • nanofibers
  • nanocrystals
  • aerogels
  • hydrogels
  • surface modification
  • antibacterial
  • hydrophobic
  • plasma
  • CVD
  • ALD
  • graft polymerization

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Published Papers (1 paper)

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Research

12 pages, 2743 KiB  
Article
Cellulose Nanocrystals versus Microcrystalline Cellulose as Reinforcement of Lignopolyurethane Matrix
by Elaine C. Ramires, Jackson D. Megiatto, Jr., Alain Dufresne and Elisabete Frollini
Fibers 2020, 8(4), 21; https://doi.org/10.3390/fib8040021 - 29 Mar 2020
Cited by 21 | Viewed by 6964
Abstract
Cellulose nanocrystals (CNC) exhibit remarkable properties such as being lightweight, renewability, nanoscale dimension, raw material availability, and a unique morphology. They have been widely used in film-forming composites, but the literature is scarce concerning bulky-composites (i.e., non-filmogenic). Microcrystalline cellulose (MCC) is widely available [...] Read more.
Cellulose nanocrystals (CNC) exhibit remarkable properties such as being lightweight, renewability, nanoscale dimension, raw material availability, and a unique morphology. They have been widely used in film-forming composites, but the literature is scarce concerning bulky-composites (i.e., non-filmogenic). Microcrystalline cellulose (MCC) is widely available and has emerged as an important material for the reinforcement of composites. This investigation focuses on the preparation of non-filmogenic composites prepared from a polyurethane-type matrix, based on modified lignosulfonate and castor oil, reinforced with CNC or MCC, aiming to compare their reinforcing capacity. CNC was obtained through the acid hydrolysis of MCC. Sodium lignosulfonate was chemically modified using glutaraldehyde to increase its reactivity towards isocyanate groups in the synthesis of lignopolyurethane. The results show that adding CNC or MCC led to materials with improved impact strength, flexural properties, and storage modulus compared to pristine lignopolyurethane. With the exception of the flexural modulus, which was higher for the CNC-reinforced composite compared to the MCC-reinforced composite, all other properties were similar. The set of results indicates that CNC and MCC are promising for the reinforcement of polyurethane-type matrices. Bulky materials with good properties and prepared from high renewable raw material contents were obtained, meeting current expectations concerning sustainable development. Full article
(This article belongs to the Special Issue Modifying the Surface Chemistry of Cellulose and Renewable Materials)
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