Article
Forestry
Mahdi Karimi-Nazarabad, Elaheh K. Goharshadi, Faezeh Sadeghi, Atefe Ebrahimi
Summary: This study presents a highly efficient and sustainable photoabsorber for interfacial solar steam generation (ISSG) of seawater. By coating poplar wood with Ag-doped VO2 (Ag@VO2) and reduced graphene oxide (RGO), the evaporation flux was significantly enhanced. The synergistic effects of Ag@VO2 and RGO, including efficient energy conversion and enhanced light absorption, contribute to the remarkable performance of the double-layer photoabsorber (RGO/Ag@VO2/wood). The study also highlights the stable performance exhibited by the fabricated photoabsorber, ensuring consistent and reliable performance over time.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Forestry
Md. Tipu Sultan, Daniela Altgen, Muhammad Awais, Lauri Rautkari, Michael Altgen
Summary: This study investigated the effect of a conditioning step on the dimensional stabilisation of wood using thermosetting resins. The results showed that the conditioning step led to an increase in resin molecule size and hydrolysis of wood constituents, which counteracted the cell wall bulking effect of the resin and hindered its diffusion.
Article
Forestry
Zhenhua Hu, Xiaotong Fan, Zhouyang Xiang, Luliang Wang, Shengdan Wang, Yushen Liu
Summary: In this study, it was found that higher molecular weight glucuronoxylans have better emulsifying properties and emulsion stability. Higher molecular weight DDSA modified glucuronoxylans showed smaller droplet size, lower zeta potential, higher emulsifying activity (EA), and better emulsion stability. Therefore, both molecular weight and degree of substitution have a positive impact on the emulsifying properties of glucuronoxylans.
Article
Materials Science, Paper & Wood
Mouad Chakkour, Mohamed Ould Moussa, Ismail Khay, Mohamed Balli, Tarak Ben Zineb
Summary: This research investigates the degradation mechanisms and mechanical properties of alkali-modified bamboo fiber composites under long-term water aging. The study found that alkali-treatment reduces the moisture content of composites and the reduction is greater with longer treatment duration. The tensile strength and modulus of composites reach their maximum values under dry conditions, and then gradually decrease. Beyond 120 aging-days, the tensile strength and modulus of modified fiber composites significantly decrease. On the other hand, the raw and 0.5-h-modified fiber composites show good aging resistance.
Article
Materials Science, Paper & Wood
Joan Widin Schroeder, Stewart Corn, John Battiste, Narina Stepanova, Connor Weiss, John Thiele
Summary: This study describes an antimicrobial treatment method for consumer use in which a pyrithione salt is formed in situ in a cellulose sponge. The efficacy of this treatment was monitored using X-ray microtomography, which revealed the presence of pyrithione particles in the treated sponge. The study also showed that while the pyrithione treatment remained in the sponge after use, the number and size of particles decreased. The pyrithione-treated sponges exhibited antimicrobial properties against bacteria compared to untreated sponges.
Article
Forestry
Thomas Boeger, Max Engelhardt, Francis Tangwa Suh, Klaus Richter, Antoni Sanchez-Ferrer
Summary: This study examines the effects of different primers on different wood species and explores the mode of action of these primers. The results show that primers can improve adhesive penetration and bond line thickness, as well as increase the tensile shear strength of the wood.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Yujia Luo, Irena Kralj Cigic, Quan Wei, Marjan Marinsek, Matija Strlic
Summary: Most research on Tibetan paper focuses on the earliest books from an archaeological perspective, neglecting the scientific study of paper properties and permanence in the 19th-20th century. This study investigates the material properties and degradation behavior of Tibetan paper, finding that diverse fibers were used and starch was the main glue. The papers have similar properties to modern Chinese paper and follow similar degradation principles as western paper.
Article
Forestry
Zhenju Bi, Xiaojian Zhou, Jiang Chen, Yafang Lei, Li Yan
Summary: Thermal modification can improve the color and performance of wood without using chemical modifiers. The study found that the extract from thermally modified wood has positive effects on the color, dimensional stability, and decay resistance of the wood, with the strongest impact observed at lower temperatures. The extract plays an important role in regulating the properties of thermal modified wood and can be used as a natural wood modifier.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Chun-Won Kang, Byung-Sook Choi, Shaohua Zhu, Sang-Sik Jang, Kazuharu Hashitsume, Haradhan Kolya
Summary: This study investigates the impact sound of CLT floor panels and compares different floor coverings. The results show that adding vinyl board with CLT-inserted air gap with gypsum board effectively reduces impact sound. Additionally, adding an air gap with a gypsum board beneath CLT floors can also reduce impact sound.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
T. Nakagawa, E. Poulin, T. Rueppel, Z. Chen, J. Swinea, M. O'Brien, G. Houser, G. Wood, M. Weinheimer, P. Bahmani, P. Stynoski, M. Salviato
Summary: This study investigates the effect of thermal modification on the flexural properties, transverse fracture energy, and hardness of western hemlock. The results show that thermal modification reduces statistical variability and transverse flexural strength, while increasing brittleness, decreasing fracture energy, and lowering Janka hardness.
WOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Paper & Wood
Sara Christenson, Bjorn Sjostrand
Summary: There is a growing demand for renewable, recyclable, and biodegradable packaging solutions. Increasing the recyclability of fiber-based packaging materials is crucial for a more sustainable future. This study investigated the potential of reducing the use of polyamide-epichlorohydrin resins (PAE) by using carboxy-methylated cellulose (CMC) in mill scale production. The results showed that using CMC can maintain the wet strength of packaging boards while improving their repulpability, leading to better recyclability and a lower reliance on non-renewable chemicals.
NORDIC PULP & PAPER RESEARCH JOURNAL
(2023)
Article
Materials Science, Paper & Wood
Ilya Digel, Nuraly Akimbekov, Evgeniy Rogachev, Natalia Pogorelova
Summary: This study investigates the effects of carbon sources and culture media on the production and structural properties of bacterial cellulose synthesized by Medusomyces gisevii. Results show that Medusomyces gisevii has higher cellulose yields in media with sugar concentrations close to 10 g L-1, with glucose leading to higher yields compared to sucrose. The cellulose produced from sucrose has higher crystallinity and surface roughness.
Article
Materials Science, Paper & Wood
Kenta Morita, Musashi Takenaka, Kohei Tomita, Jun Ishii, Hideo Kawaguchi, Daisuke Murakami, Hikaru Amo, Miku Fujii, Tatsuo Maruyama, Takuya Matsumoto, Takashi Nishino, Chiaki Ogino
Summary: Cellulose has been developed as a sustainable alternative to petrochemical materials. Lignocellulose nanofibers (LCNFs) show promise as they are produced from biomass with mild pretreatment. This study developed two methods to detect and visualize lignin in LCNFs, revealing its microscopic location and providing a strong tool for analyzing lignin-containing materials.
Article
Materials Science, Paper & Wood
Elisa Sponla, Simo Hannula, Taina Kamppuri, Ulla Holopainen-Mantila, Irina Sulaeva, Antje Potthast, Ali Harlin, Stina Gronqvist, Jenni Rahikainen
Summary: In this study, regenerated fibers were spun from hemicellulose-rich pulps using a superbase ionic liquid, and it was found that pulp pretreatment was critical for achieving good mechanical properties in the regenerated fibers.
Article
Materials Science, Paper & Wood
Yizhe Xu, Shuang Sun, Xieraili Maimaitiyiming
Summary: In this study, a dual-network interpenetrating structure was designed for flexible sensors by mixing PVA and PAM to form hydrogen bonds. The mechanical properties of the sensors were greatly improved, and the tear resistance and adhesion were enhanced by the addition of CMC and borax. The PVA/CMC/PAM/Borax hydrogel showed high stress, high break elongation, and great toughness, making it suitable for human motion, temperature, and humidity detection. These findings suggest that PVA/CMC/PAM/Borax hydrogel has significant potential as a new flexible wearable device.
Article
Forestry
Resa Martha, Beatrice George, Istie S. Rahayu, Philippe Gerardin, Wayan Darmawan
Summary: This study investigated the effect of chemical and thermal treatment on technological properties homogenization of sapwood and heartwood in short rotation teak. The results showed that furfurylation and GMA-thermal treatment could homogenize the properties of short rotation teak wood, making it more suitable for high-quality and uniform boards in the sawn timber industry.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Jens U. Hartig, Peer Haller
Summary: This contribution presents investigations on multifunctional wood and timber elements impregnated with phase change materials (PCM). The purpose of PCM impregnation is passive air-conditioning using structural and non-structural timber elements. PCM have the ability to absorb substantial thermal energy within a narrow temperature range without increasing temperature, improving the indoor climate in timber buildings.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Materials Science, Paper & Wood
Aissata Ousmane Kane, Eupidio Scopel, Anelyse Abreu Cortez, Bruno Roberto Rossi, Vanessa Oliveira Arnoldi Pellegrini, Camila Alves Rezende, Igor Polikarpov
Summary: This study demonstrates the production of cellulose nanofibers (CNFs) from sugarcane bagasse waste using partial enzymatic hydrolysis. The combination of enzymatic hydrolysis with sulfonation was found to enhance the efficiency of CNF production and increase thermal stability. This research highlights the importance of enzymes in green CNF production and provides optimized conditions for manufacturing CNFs with advanced properties.
Article
Materials Science, Paper & Wood
Quan Shu, Zhao Zhang, Shaolin Ge, Shouhu Xuan
Summary: This study reports a novel argon plasma treatment technique for improving the surface properties of tobacco paper, including hydrophilicity and bacteriostatic effect. The use of argon plasma significantly enhanced the absorption capacity of the paper and showed excellent bacteriostatic effect against fungi, Escherichia coli, and Staphylococcus aureus.
Article
Forestry
M. C. Anish, Krishna K. Pandey, Rakesh Kumar
Summary: Transparent wood is a novel concept with significant industrial value. This study demonstrates an economically feasible strategy for fabricating transparent wood using unsaturated polyester resin, which shows similar properties to epoxy resin. The findings have practical implications for industrial-scale production and applications.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
