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Polymers
Special Issues
Advances in Natural Fiber Polymer Composites
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Advances in Natural Fiber Polymer Composites

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Circular and Green Polymer Science".

Deadline for manuscript submissions: 5 February 2025 | Viewed by 5460

Special Issue Editors

Dr. Da-Woon Jeong

E-Mail Website
Guest Editor
National Research Infrastructures (N-LAB), Korea Institute of Industrial Technology (KITECH), Incheon, Republic of Korea
Interests: energy materials; energy harvesting; natural materials; cellulose fibers; nanocomposite
Prof. Dr. Chih-Feng Huang

E-Mail Website
Guest Editor
Department of Chemical Engineering, i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung 40227, Taiwan
Interests: living polymerizations; nanocomposites; biomaterial modifications; stimuli-responsive polymers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Renewable and biodegradable natural fibers (such as hemp, sisal, jute, kenaf, flax, and others), which are abundant, low-cost, and eco-friendly, have been widely used in human society. With the catastrophic change caused by global climate and the depletion of fossil resources, the complete recycling and valorization of these natural fibers for value-added materials is significant and meaningful. In fact, natural-fiber-reinforced polymer composites with various merits have recently attracted extensive attention due to the suitable mechanical property of natural fibers. Nevertheless, it is still imperative to develop more natural fiber polymer composites. This Special Issue aims to present the latest scientific and technical advances in materials development, processing, characterizations, and applications of natural fiber polymer composites. Original articles and reviews on this subject are welcome in this Special Issue.

Dr. Da-Woon Jeong
Prof. Dr. Chih-Feng Huang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • natural fibers
  • factionalized natural fiber
  • fiber modification
  • sustainable materials
  • mechanical properties
  • thermal properties
  • eco-friendly
  • energy harvesting

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Published Papers (3 papers)

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Research

9 pages, 2073 KiB  
Article
Carbon Nanotube Sheets/Elastomer Bilayer Harvesting Electrode with Biaxially Generated Electrical Energy
by Seongjae Oh, Hyeon Ji Kim, Seon Lee, Keon Jung Kim and Shi Hyeong Kim
Polymers 2024, 16(17), 2477; https://doi.org/10.3390/polym16172477 - 30 Aug 2024
Viewed by 565
Abstract
Mechanical energy harvesters made from soft and flexible materials can be employed as energy sources for wearable and implantable devices. However, considering how human organs and joints expand and bend in many directions, the energy generated in response to a mechanical stimulus in [...] Read more.
Mechanical energy harvesters made from soft and flexible materials can be employed as energy sources for wearable and implantable devices. However, considering how human organs and joints expand and bend in many directions, the energy generated in response to a mechanical stimulus in only one direction limits the applicability of mechanical energy harvesters. Here, we report carbon nanotube (CNT) sheets/an elastomer bilayer harvesting electrode (CBHE) that converts two-axis mechanical stimulation into electrical energy. The novel microwinkled structure of the CBHE successfully demonstrates an electrochemical double-layer (EDL) capacitance change from biaxial mechanical stimulation, thereby generating electrical power (0.11 W kg−1). Additionally, the low modulus (0.16 MPa) and high deformability due to the elastomeric substrate suggest that the CBHE can be applied to the human body. Full article
(This article belongs to the Special Issue Advances in Natural Fiber Polymer Composites)
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16 pages, 27289 KiB  
Article
FlaxPack: Tailored Natural Fiber Reinforced (NFRP) Compliant Folding Corrugation for Reversibly Deployable Bending-Active Curved Structures
by Kevin Saslawsky, Christian Steixner, Michael Tucker, Vanessa Costalonga and Hanaa Dahy
Polymers 2024, 16(4), 515; https://doi.org/10.3390/polym16040515 - 14 Feb 2024
Cited by 1 | Viewed by 2004
Abstract
As the use of Natural Fiber Reinforced Polymers (NFRPs) become increasingly popular in the built environment, steps in established workflows, including molding and transportation, continue to impose constraints on what is possible in the material’s fabrication process. This research builds on previous studies [...] Read more.
As the use of Natural Fiber Reinforced Polymers (NFRPs) become increasingly popular in the built environment, steps in established workflows, including molding and transportation, continue to impose constraints on what is possible in the material’s fabrication process. This research builds on previous studies of moldless fiber composites using tailored fiber placement (TFP) as a fabrication method. By integrating compliant folding mechanisms into the flat preform to give shape to the final desired geometry this research replaces all dependencies on molds and formworks during the resin curing process with programmed formal deformations. The desired geometry is digitally simulated from its two-dimensional state into its resultant three-dimensional state and then subsequently structurally analyzed. The flat pack components are material efficient and can be transported flat to the site for their final assembly into their programmed geometry. This form is locked into its bent active state through the use of a simple drawstring that can later be removed to revert the form back into its flat state. This method is demonstrated through the digital fabrication of a stool where flat-packed elements can be deployed into elegant solutions that embody structure, material, and form simultaneously. Full article
(This article belongs to the Special Issue Advances in Natural Fiber Polymer Composites)
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12 pages, 3665 KiB  
Article
Water-Based Generators with Cellulose Acetate: Uncovering the Mechanisms of Power Generation
by Seung-Hwan Lee, Hyun-Woo Lee, So Hyun Baek, Jeungjai Yun, Yongbum Kwon, Yoseb Song, Bum Sung Kim, Yong-Ho Choa and Da-Woon Jeong
Polymers 2024, 16(3), 433; https://doi.org/10.3390/polym16030433 - 4 Feb 2024
Cited by 4 | Viewed by 2105
Abstract
Power generation technologies based on water movement and evaporation use water, which covers more than 70% of the Earth’s surface and can also generate power from moisture in the air. Studies are conducted to diversify materials to increase power generation performance and validate [...] Read more.
Power generation technologies based on water movement and evaporation use water, which covers more than 70% of the Earth’s surface and can also generate power from moisture in the air. Studies are conducted to diversify materials to increase power generation performance and validate energy generation mechanisms. In this study, a water-based generator was fabricated by coating cellulose acetate with carbon black. To optimize the generator, Fourier-transform infrared spectroscopy, specific surface area, zeta potential, particle size, and electrical performance analyses were conducted. The developed generator is a cylindrical generator with a diameter of 7.5 mm and length of 20 mm, which can generate a voltage of 0.15 V and current of 82 μA. Additionally, we analyzed the power generation performance using three factors (physical properties, cation effect, and evaporation environment) and proposed an energy generation mechanism. Furthermore, we developed an eco-friendly and low-cost generator using natural fibers with a simple manufacturing process. The proposed generator can contribute to the identification of energy generation mechanisms and is expected to be used as an alternative energy source in the future. Full article
(This article belongs to the Special Issue Advances in Natural Fiber Polymer Composites)
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