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Polymers
Special Issues
Advance in Functional Lignocellulosic Materials
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Advance in Functional Lignocellulosic Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (5 March 2024) | Viewed by 6709

Special Issue Editors

Dr. Xiaoshuai Han

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Guest Editor
College of Materials Science and Technology, Nanjing Forestry University, Nanjing, China
Interests: wood modification; functional cellulosic material; adhesive
Special Issues, Collections and Topics in MDPI journals
Dr. Gaigai Duan

E-Mail Website
Guest Editor
College of Materials Science and Technology, Nanjing Forestry University, Nanjing, China
Interests: fibers; supercapacitor; aerogel; water treatment
Special Issues, Collections and Topics in MDPI journals
Dr. Yanyan Dong

E-Mail
Guest Editor
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: cellulose; nanocellulose; high-value utilization of biomass
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

When developing high-performance materials, natural polymers should be prioritized due to their renewability and sustainability, low density, natural abundance, and high mechanical properties. Wood, one of the most important biological materials, gets more and more focus. Recent research shows interesting possibilities to modify wood templates in order to add functional properties for high-performance structural materials. As one of the three major structural components in wood, cellulose, especially its nanoscale semi-crystalline derivative nanocellulose, has also been widely used in high-end manufacturing. Functional wooden and cellulosic composite will be expected to be used in the design of high-performance materials for applications in construction, automobiles, and aerospace. Accordingly, this Special Issue aims to investigate innovation in functional lignocellulosic materials, including wood composite, aerogel, hydrogel, etc.

Dr. Xiaoshuai Han
Dr. Gaigai Duan
Dr. Yanyan Dong
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

  • wood
  • cellulose
  • adhesive
  • modification
  • aerogel
  • hydrogel
  • fibers

Published Papers (3 papers)

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Research

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14 pages, 4394 KiB  
Article
Effect of Resin Content on the Structure, Water Resistance and Mechanical Properties of High-Density Bamboo Scrimbers
by Zixuan Yang, Xin Meng, Guangda Zeng, Jinguang Wei, Chuangui Wang and Wenji Yu
Polymers 2024, 16(6), 797; https://doi.org/10.3390/polym16060797 - 13 Mar 2024
Viewed by 653
Abstract
Bamboo scrimber is acknowledged for its eco-friendly potential as a structural material. Its properties are significantly affected by both its density and resin content, but the effect of resin content on the properties under high density is not yet known. In this study, [...] Read more.
Bamboo scrimber is acknowledged for its eco-friendly potential as a structural material. Its properties are significantly affected by both its density and resin content, but the effect of resin content on the properties under high density is not yet known. In this study, the microstructure, water resistance, mechanical properties, and thermal stability of bamboo scrimbers with varying resin content at a density of 1.30 g/cm3 were investigated. The results unearthed that phenolic resin assisted in the densification of bamboo cells during hot pressing, and a higher resin content could effectively reduce the cracks in the scrimber. The inherent cellulose I structure remained unaffected, but an increase in resin content led to a noticeable decline in crystallinity. Additionally, an increase in resin content pronouncedly improved the water resistance and dimensional stability of bamboo scrimbers. The water absorption and thickness swelling were as low as 9.67% and 7.62%, respectively. The modulus of rupture (MOR) exhibited a marginal increase with the amount of resin, whereas the compressive strength and short-beam shearing strength first increased and then decreased. Their peak strengths were 327.87 MPa at a resin content of 15 wt.%, and 168.85 MPa and 25.96 MPa at 11 wt.%, respectively. However, phenolic resin accelerated the thermal decomposition of bamboo scrimbers, and more resin worsened the thermal stability. These research outcomes offer a dual advantage, providing both a theoretical foundation and concrete data that can inform the production and practical application of high-density bamboo scrimbers. Full article
(This article belongs to the Special Issue Advance in Functional Lignocellulosic Materials)
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11 pages, 5074 KiB  
Article
The Long-Term Mechanical Properties of BS Perpendicular to the Grain
by Xiangya Luo, Xiangqian Luo, Haiqing Ren, Shuangbao Zhang and Yong Zhong
Polymers 2023, 15(1), 128; https://doi.org/10.3390/polym15010128 - 28 Dec 2022
Viewed by 980
Abstract
As a modern bamboo composite with good mechanical properties, bamboo scrimber (BS) has achieved prominence in the sustainable architecture field. When used as a structural material, it is inevitably under continual tension perpendicular to the grain, therefore its mechanical response under long-term loading [...] Read more.
As a modern bamboo composite with good mechanical properties, bamboo scrimber (BS) has achieved prominence in the sustainable architecture field. When used as a structural material, it is inevitably under continual tension perpendicular to the grain, therefore its mechanical response under long-term loading is significant for structural design. In this study, tensile tests were conducted on BS under short-term and long-term loads perpendicular to the grain. The duration of load (DOL) effect on BS perpendicular to grain and its creep effect were analyzed. Compared with BS parallel to the grain, the DOL effect on BS perpendicular to the grain was less severe, and the capacity for creep resistance was weaker. The threshold stress ratio and relative creep strain of BS perpendicular to the grain were 0.40 and 0.87, respectively. It was found that the DOL models and the viscoelastic model accurately predicted the DOL factor and creep strain. This study provides a scientific reference for the safe lifetime service of BS in practical engineering. Full article
(This article belongs to the Special Issue Advance in Functional Lignocellulosic Materials)
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Review

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23 pages, 2600 KiB  
Review
Nanocellulose-Based Adsorbents for Heavy Metal Ion
by Rongrong Si, Junwen Pu, Honggang Luo, Chaojun Wu and Gaigai Duan
Polymers 2022, 14(24), 5479; https://doi.org/10.3390/polym14245479 - 14 Dec 2022
Cited by 19 | Viewed by 4606
Abstract
Heavy metal ions in industrial sewage constitute a serious threat to human health. Nanocellulose-based adsorbents are emerging as an environmentally friendly material platform for heavy metal ion removal based on their unique properties, which include high specific surface area, excellent mechanical properties, and [...] Read more.
Heavy metal ions in industrial sewage constitute a serious threat to human health. Nanocellulose-based adsorbents are emerging as an environmentally friendly material platform for heavy metal ion removal based on their unique properties, which include high specific surface area, excellent mechanical properties, and biocompatibility. In this review, we cover the most recent works on nanocellulose-based adsorbents for heavy metal ion removal and present an in-depth discussion of the modification technologies for nanocellulose in the process of assembling high-performance heavy ion adsorbents. By introducing functional groups, such as amino, carboxyl, aldehyde, and thiol, the assembled nanocellulose-based adsorbents both remove single heavy metal ions and can selectively adsorb multiple heavy ions in water. Finally, the remaining challenges of nanocellulose-based adsorbents are pointed out. We anticipate that this review will provide indispensable guidance on the application of nanocellulose-based adsorbents for the removal of heavy metal ions. Full article
(This article belongs to the Special Issue Advance in Functional Lignocellulosic Materials)
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