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Coatings
Special Issues
Advances in Wood Treatment
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Advances in Wood Treatment

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 (31 December 2023) | Viewed by 5579

Special Issue Editors

Prof. Dr. Alena Očkajová

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Guest Editor
Department of Technology, Faculty of Natural Sciences, Matej Bel University, 974 01 Banská Bystrica, Slovakia
Interests: wood; roughness; poplar; surface quality; machinability; hygro-thermal modification; cedar; alder
Special Issues, Collections and Topics in MDPI journals
Dr. Richard Kminiak

E-Mail Website
Guest Editor
Department of Woodworking, Faculty of Wood Sciences and Technology, Technical University in Zvolen, T. G. Masaryka 24, 96001 Zvolen, Slovakia
Interests: chip and chipless machining of wood and wood-based materials; CNC technology in the woodworking industry; wood cutting tools; optimization of processes in the woodworking industry; issue of Industry 4.0
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wood, as a renewable source of raw materials, has been used by mankind for centuries in many areas of life, from making simple toys to the production of high-tech products. Wood can rightly be termed an "ecological material", however this does not always apply to its end-products. The uniqueness of wood as a material is due not only to its positive properties, but also to its negative characteristics in terms of its stability and durability. The standard practice is to create a mechanical barrier on the surface of the wood to mitigate these negative properties by treating it with chemicals, which in many cases are sources of potential health and environmental problems.

Therefore, it is our duty to look for new methods of wood treatment, especially physical methods, which have minimal impacts on healthy working and living environments throughout the entire life cycle of such treated wood.

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

  • The influence of materials and operational specifics on wood treatment parameters;
  • Changes in physical, chemical, and technological properties of treated wood;
  • Environmental aspects of wood treatment.

Prof. Dr. Alena Očkajová
Dr. Richard Kminiak
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. 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

  • methods of wood treatment
  • changes in treated wood
  • environment

Published Papers (2 papers)

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Research

18 pages, 3768 KiB  
Article
Life Cycle Assessment of Coated and Thermally Modified Wood Façades
by Dominika Búryová and Pavol Sedlák
Coatings 2021, 11(12), 1487; https://doi.org/10.3390/coatings11121487 - 2 Dec 2021
Cited by 5 | Viewed by 2632
Abstract
Façades—their design, aesthetics, performance, type of cladding material, and understructure—determine architectural expression and form unique appearances of individual buildings. In connection to the sustainable development idea, wood façades provide one of the alternatives of a contemporary building exterior look. Façade cladding made of [...] Read more.
Façades—their design, aesthetics, performance, type of cladding material, and understructure—determine architectural expression and form unique appearances of individual buildings. In connection to the sustainable development idea, wood façades provide one of the alternatives of a contemporary building exterior look. Façade cladding made of coated and thermally modified wood can be successfully used for these buildings. In addition, thermally modified wood allows the use of local European wood species, while keeping cladding elements relatively thin. On the other hand, wood has certain structural limitations and disadvantages due to the properties of wood. The main weakness is caused by the surface durability of wood and its related need for maintenance over time. The scope of the study was a comprehensive assessment of coated non-heat-treated and thermally modified wood façades, performed in terms of life cycle assessment. The aim was to identify which type of wooden façade had the lowest environmental impact. According to the EN 15804 + A2 standard, the principle of evaluation of environmental parameters “cradle-to-gate-with options” was used to evaluate wooden façades and coatings and surface preservation methods. Simulations with the SimaPro program showed that the thermal modification of wood has a significant impact on the environment at the product stage. Nonetheless the thermally modified façade without any surface coating showed the lowest environmental impact in a 30 year time-horizon of the “use stage”. It was showed that surface maintenance methods applied, the coatings used, and the frequency of their application play an important role in the environmental impact of the investigated wooden façades. Full article
(This article belongs to the Special Issue Advances in Wood Treatment)
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11 pages, 2838 KiB  
Article
Changes in the Physical and Chemical Properties of Alder Wood in the Process of Thermal Treatment with Saturated Water Steam
by Michal Dudiak and Ladislav Dzurenda
Coatings 2021, 11(8), 898; https://doi.org/10.3390/coatings11080898 - 27 Jul 2021
Cited by 12 | Viewed by 2017
Abstract
The paper presents changes in color and selected physico-chemical properties of alder (Alnus glutinosa) wood during the process of thermal treatment of the wood with a saturated steam-air mixture or saturated water steam in the temperature range t = 95–125 °C [...] Read more.
The paper presents changes in color and selected physico-chemical properties of alder (Alnus glutinosa) wood during the process of thermal treatment of the wood with a saturated steam-air mixture or saturated water steam in the temperature range t = 95–125 °C for τ = 3 to 12 h. During the process of thermal treatment of alder wood, the original light white-gray color changes depending on the temperature and time of modification to soft reddish-brown to dark brown color shades. Color changes of alder wood expressed in the form of the total color difference are in the range of values ∆E* = 2.7–31.7. Measurements of the density of thermally treated alder wood in the dry state indicate that due to the thermal treatment of alder wood, the density decreases by ρ ≤ 4.6% compared to the average density of native alder wood. Due to the hydrolysis of hemicelluloses, in the process of thermal treatment of wet alder wood, its acidity changes in the range of values: pH = 4.9 to 3.1. Analyzes of ATR-FTIR spectroscopy indicate changes in alder wood extractants and hemicellulose degradation. A decrease in unconjugated and an increase in conjugated carbonyls was observed at all temperatures of thermal modification of alder wood. Measurements indicate changes in the lignin of alder wood and the fact that as the temperature increases, the formation of new carbonyls increases, which is reflected in the change of the chromophoric system. Full article
(This article belongs to the Special Issue Advances in Wood Treatment)
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