Article
Materials Science, Paper & Wood
I. Jankowska, M. Bielejewski, P. Lawniczak, R. Pankiewicz, J. Tritt-Goc
Summary: This study presents new solid electrolytes based on cellulose nanocrystals and protic ionic liquid. The materials exhibit excellent thermal stability and conductivity properties. The correlation between the nanostructure and transport properties of the membranes has been investigated. The thermal and conductivity properties of these materials can compete with currently available membranes, and further research may lead to the development of materials suitable for next-generation fuel cells.
Article
Materials Science, Paper & Wood
Jiang-Long Liu, Lian-Yi Qu, Yu-Lei Shi, An-Le Yang, Lin Zhang, Ying-Jun Xu
Summary: In this study, catechol formaldehyde resin microspheres with surface-distributed silver nanoparticles were used as functional additives to fabricate antimicrobial viscose fibers. The microspheres exhibited high antibacterial properties and low cytotoxicity, and had minimal influence on the mechanical and moisture absorption performance of the fibers.
Article
Forestry
Hamish Pearson, Lloyd Donaldson, Mark Kimberley, Bruce Davy
Summary: Supercritical CO2 dewatering and drying technique has been successfully applied to difficult-to-dry red beech wood, and can be combined with other processing methods to create an economically viable process with improved energy, environmental, and carbon footprints.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Pawel Czarniak, Beata Kucharska, Karol Szymanowski, Corinne Nouveau, Peter Panjan, Krzysztof Kulikowski, Agata Roguska, Maksymilian Gloeh, Jerzy Robert Sobiecki
Summary: This study investigated the use of different coatings on HSS steel and compared their microstructure, chemical composition, and properties. The results showed that the two-layer TiAlN/aCN coating exhibited the best durability, while the chromium-containing coatings were less durable. The AlTiN/TiN coating had the highest nanohardness, while the nanohardness of the other coatings was more than two times lower compared to the multilayer AlTiN/TiN nanocoating.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Xuan Dong, Yang Wei, Yu Lin, Ze Xing, Si Chen
Summary: This paper investigated the design and performance of partially encased bamboo scrimber (PEBS) columns. By placing the bamboo scrimber inside an H-shaped steel member, partial confinement of the bamboo scrimber was achieved, leading to a significant improvement in axial bearing capacity. The research results can provide guidance for the design and application of PEBS columns.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Jija Thomas, Sabu Thomas, Ranimol Stephen
Summary: This study successfully extracted nanocellulose from pistachio nut shells and synthesized nanocellulose silver hybrid. The hybrid exhibited good antibacterial activity, controlled morphology and size, making it suitable for various applications.
Article
Materials Science, Paper & Wood
Miguel Ferreira, Paulo Providencia, Ricardo Costa
Summary: This study proposes two elastic models suitable for modeling transversely isotropic elastic glulam beams in the design process. These models achieve a good balance between accuracy and simplicity and are validated by comparing their results with those of a 2D finite element. The results show that the proposed combination of transverse isotropy and a third order shear deformation model improves the accuracy of 1D modeling of glulam beams compared to conventional models used in design.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
S. Vignesh, J. Bensam Raj, K. Viswanath, N. Natarajan
Summary: Natural composites, with advantages of low density, environmental friendliness, and low cost, are widely used in industries. However, their performance is limited compared to conventional materials. In this study, new scientific information on peepal fiber-based composites was revealed. By using a hand layup process, natural composites were made using peepal fiber and epoxy resin, and nanofillers like silica and silicon carbide were used as reinforcing agents. The performance of composites was evaluated in terms of mechanical, thermal, and water intake characteristics, with the epoxy/peepal/2 wt% SiO2 composite showing the best overall performance.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Pawel Czarniak, Karol Szymanowski, Jaroslaw Gorski, Dariusz Jarosiewicz
Summary: Pre-rounding of cutting blades can increase the tool life in particleboard milling, depending on the structure and hardness of the carbide. The positive effect is more significant for harder carbides.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Xinyi Shao, Jian Wang, Xinjie Yao, Yubo Wang, Wenbao Song, Dehua Xu, Yifei Gao, Cuihua Dong
Summary: In this study, a cationic design for cotton lint fiber was carried out, resulting in a cellulose-based anion-exchange fiber (CAF) with excellent adsorption performance. CAF exhibited well-preserved fibrous macrostructure and cellulose nanofibril structure, enabling efficient adsorption of pollutants and demonstrating good solid/liquid separation property and recyclability. This study not only revolutionizes the application of natural plant fiber but also provides a cost-effective and simple strategy for the utilization of cellulose.
Article
Forestry
Hiroaki Horiyama, Keisuke Kojiro, Yuzo Furuta
Summary: This study utilized dynamic mechanical analysis (DMA) to measure the viscoelastic properties of water-saturated radiata pine wood in the temperature range of 0 to 100 degrees Celsius, aiming to understand the transitional behavior within successive annual rings. The results showed that the peak tan delta temperature caused by micro-Brownian motion of lignin varied between different annual rings and within the same ring.
JOURNAL OF WOOD SCIENCE
(2023)
Article
Materials Science, Paper & Wood
Frederick Amin Anthonio, Charles Antwi-Boasiako
Summary: This study aimed to evaluate the termite resistance of coppiced and non-coppiced wood, and confirm the reliable utilization of coppiced wood according to standards, in order to reduce over-exploitation of natural forests.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
Pankaj Yadav, Julie Bossu, Nicolas Le Moigne, Stephane Corn, Francesco Di Renzo, Philippe Trens
Summary: Water is widely used in the wood industry along with organic solvents and salts for various purposes. It is important to understand the specific role of each solvent in wood biopolymers in order to predict their influence on wood properties. This study examines the sorption behavior of different hardwoods in water-ethanol vapor mixtures and highlights the different affinities of ethanol and water for wood macromolecules.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Jakub Kawalerczyk, Petar Antov, Dorota Dziurka, Radoslaw Mirski, Seng Hua Lee
Summary: The aim of this research was to investigate the effects of pressing protocol and hardener content on the properties of plywood bonded with modified UF adhesive system. The study found that by increasing hardener content, pressing temperature, and pressing time, it is possible to produce plywood with equal characteristics as the reference variant, while also reducing formaldehyde emissions further.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
Liangmu Qiu, Ranran Guo, Xiaojun Ma, Binqing Sun, Jie Li
Summary: Hierarchical porous carbon aerogels were synthesized from liquefied wood via physical and chemical activation processes. The KOH-treated carbon aerogel demonstrated higher specific capacitance and superior cyclic stability, making it suitable for supercapacitor applications.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Yanqi Dai, Dongyang Sun, Senthilarasu Sundaram, Angelo Delbusso, Dominic O'Rourke, Mark Dorris, Mohan Edirisinghe
Summary: In this study, inverted nozzle-pressurized gyration was used to regenerate cellulose extracted from Laminaria hyperborea for the first time. The viscoelasticity of cellulose/1-ethyl-3-methylimidazolium acetate (EMIM OAc) solutions showed a strong dependence on concentration, resulting in cellulose products with diverse structures. As the concentration increased, the regenerated cellulose transitioned from thin films to fibers (approximately 5 μm in diameter). The impact of collection distance and working pressure on the morphology and yield of the fibers was investigated. This work provides a sustainable approach for processing biopolymers and has significant potential for applications in biomedicine and healthcare.
Article
Materials Science, Paper & Wood
Yue Su, Yi Liu, Jing Hu
Summary: This study investigates the subjective brightness of photonic crystal structural colored wood products under different color temperature light sources. It found that the subjective brightness of the coating is closely related to the light source color temperature and the reflectivity of the coating.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
Nguyen Thi Hue, Truong Thi Thanh, Nguyen Hoang Chung, Le Quang Dien, Phan Huy Hoang
Summary: Four types of high-acidity carbon-based solid acid catalysts were synthesized successfully from different biomass materials using fuming sulfuric acid as the sulfonating agent. These catalysts showed higher acidity compared to conventional sulfuric acid and were found to be effective in converting wood-derived glucose and fructose into levulinic acid with yields exceeding 50wt%.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Materials Science, Paper & Wood
Carsten Hinzmann, Drew F. Parsons, Johannes Fiedler, Justas Zalieckas, Bodil Holst
Summary: Synthetic fibers are commonly used in composite materials, but their production and disposal have environmental concerns. Natural fibers, although weaker, are a sustainable alternative. Researchers have found that treating flax fibers with hydrogenated nanodiamonds improves their properties, such as reducing moisture absorption and increasing abrasion resistance. The mechanical improvements are attributed to enhanced electrolytic force, dispersion force, and hydrogen bonding between fibers.
Article
Materials Science, Paper & Wood
Wei Zhao, Xin Jin, Kaikai Chen, Haoyang Ling, Zuwei Fan, Changfa Xiao
Summary: In this research, the hydrophilicity and anti-fouling property of cellulose acetate membranes were improved through the doping of graphene oxide (GO). The fabricated hollow fiber membranes with GO-doping exhibited a neatly arranged finger-like pore structure and good permeability. The membranes also showed high protein rejection and anti-fouling property. The optimal GO content was determined to be 0.1 wt%, and the membranes were suitable for high pressure backwash and aeration processes in filtration systems. Overall, the GO-doped cellulose acetate hollow fiber membranes showed potential applications in wastewater treatment and biomedical processes.
