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Treatments and Modifications to Improve Surface Properties of Wood and...
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Treatments and Modifications to Improve Surface Properties of Wood and Wood-Based Materials

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 2492

Special Issue Editor

Dr. Agnieszka Jankowska

E-Mail Website1 Website2
Guest Editor
Institute of Wood Sciences and Furniture, Warsaw University of Life Sciences, Warszawa, Poland
Interests: tropical wood; wood coatings; surface characterizations; wood modification; wood surface modification; wood weathering; wood-based materials, wood-based composite
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wood has been attracting increasing amounts of attention due to its use as a renewable material with a wide range of applications. Even though there are limitations that bind the application of wood, there are some methods of modification to improve wood’s properties. Surface modification can improve some physical and mechanical properties of wood and wood-based composites, such as hydrophobization, dimensional stability, hardness, flame retardance as well as anti-fouling to pollutants. Although a lot of work regarding the possible usage and treatment of wood has been done, new wood modification solutions to assure the improvement of wood properties and functionality is still under consideration.

The goal of this Special Issue is to provide new findings in surface modification of wood and lignocellulosic materials. Taking into account the current development state of new modification techniques and research methods, it is necessary to understand the deep mechanisms and to explore some potential ideas in the modification process. Thus, also the current state of knowledge in these areas needs to be analyzed.

In particular, the topics of interest include (but are not limited) to the following:

  • Ecological modifiers and modification processes wood and wood-based composites surface being harmless to humans and the environment
  • Surface preparation, texturing techniques and experimental processing with new methods on surface treatments and characterizations
  • Wettability of wood and wood-based materials and their treated surfaces properties of modified wood-based surface, including weathering studies, resistance to abiotic and biotic factors, measurement of different deterioration parameters
  • Optical techniques, spectroscopical and surface analytical methods

I am looking forward to receiving your contribution.

Dr. Agnieszka Jankowska
Guest Editor

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. Coatings is an international peer-reviewed open access monthly 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 2600 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 surface
  • wood-based composites
  • surface modification
  • green modifiers
  • new materials

Published Papers (2 papers)

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Research

16 pages, 5738 KiB  
Article
The Characteristics of Ancient Residence Wood from the Qing Dynasty in Yunnan Province
by Xiaorui Yang, Changzhao Li, Liang Wang, Chunwang Yang, Shang Zhang, Jingran Gao and Jian Qiu
Coatings 2024, 14(2), 200; https://doi.org/10.3390/coatings14020200 - 03 Feb 2024
Viewed by 673
Abstract
This study takes the wooden components of the different parts of the ancient buildings at the site of the Zhuangzishang Conference as the object of study, and investigates the deterioration state of the different wood components. To assess their degree of degradation, the [...] Read more.
This study takes the wooden components of the different parts of the ancient buildings at the site of the Zhuangzishang Conference as the object of study, and investigates the deterioration state of the different wood components. To assess their degree of degradation, the wood anatomy, basic density (BD), maximum water content (MWC), cell wall major components, X-ray diffraction (XRD), infrared spectroscopy (IR), and thermogravimetry (TG) were used to compare the samples of new and old wood from the same species. The window (W) was identified by microscopic characterization as cypress (Cupressus sp.), the footing beam (FB) and the weatherboard (WB) as pine (Pinus spp.), the purlin (P) and the column (C) as Chinses fir (Cunninghamia spp.), and the floor (F) as spruce (Picea sp.). In terms of their physical properties, the old wood had a lower basic density of 2.58%–38.19%, a lower air-dry density of 2.87%–39.81%, and a higher maximum moisture content of 8.52%–41.38% compared to the reference wood. The degradation of the FB, which has been subjected to moisture and sunlight, and the P, which has been subjected to termite damage, was greater than that of their conspecifics. The integrated holocellulose of the ancient wood was 3.34%–16.48% less, and the hemicellulose was 1.6%–21.92% less compared to that of the reference wood, and the lignin was 1.32%–25.07% more. The XRD results showed that the crystallinity of the cellulose was greater in the different species of ancient wood compared to the control wood, which was caused by the decrease in the amorphous zones of the hemicellulose and cellulose in the ancient wood. The IR indicated that the degradation of cellulose and hemicellulose occurred in the old wood of all species, from the new lignin uptake peaks in the UV-exposed W, FB, and WB compared to the control timber. The pyrolytic behavior of the ancient and control timber is mainly related to the degradation of the tree species and the ancient wood holocellulose. These results show that the differences in the wooden components of the different parts of the ancient buildings at the Zhuangzishang Conference site are mainly related to the species of trees used in the components, and are secondly related to the location of the ancient wood members, which provides useful information for the protection and repair of the ancient buildings at the site. Full article
(This article belongs to the Special Issue Treatments and Modifications to Improve Surface Properties of Wood and Wood-Based Materials)
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12 pages, 4959 KiB  
Article
Effect of Cu, Zn and Ag Ion Implantation on the Surface Modification of Bacterial Cellulose Films
by Izabela Betlej, Marek Barlak, Krzysztof Krajewski, Bogusław Andres, Zbigniew Werner, Agnieszka Jankowska, Sarani Zakaria and Piotr Boruszewski
Coatings 2023, 13(2), 254; https://doi.org/10.3390/coatings13020254 - 21 Jan 2023
Cited by 5 | Viewed by 1416
Abstract
The paper presents the preliminary results of cellulose modification by ion implantation. Three types of ions were implanted, i.e., copper, zinc and silver with fluences of 5 × 1014 and 5 × 1015 cm−2, respectively. The acceleration voltage of [...] Read more.
The paper presents the preliminary results of cellulose modification by ion implantation. Three types of ions were implanted, i.e., copper, zinc and silver with fluences of 5 × 1014 and 5 × 1015 cm−2, respectively. The acceleration voltage of the implanted ions was 30 kV. The ion penetration depth profiles showed differences, especially in the Cu and Ag cases, due to the different ion beams of these elements. The implantation of cellulose with ions clearly changed the wettability of the material surface in the direction of hydrophobicity. The impact of implantation on the growth of the cellulose surface by mold fungi was also noticeable. Only the silver ion implantation had a negative effect on the growth of the Trichoderma viride fungus but did not cause a complete inhibition of growth. Cellulose implantation with Cu and Zn ions clearly stimulated the growth of fungi on the surface of the polymer. Full article
(This article belongs to the Special Issue Treatments and Modifications to Improve Surface Properties of Wood and Wood-Based Materials)
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