Article
Materials Science, Paper & Wood
Haitao Li, Ziang Wang, Tingting Ling, Rongyao Li, Zhenhua Xiong, Ottavia Corbi
Summary: This study investigates the application of laminated bamboo lumber and metal-plate-connected joints under static and cyclic loading. The results show that the ultimate load of certain joints is higher under cyclic loading, while for others it is lower.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Forestry
B. Kawecki, M. Pienko, T. Lipecki, A. Stachowicz
Summary: The paper presents a complex solution for testing loaded structural-sized glue laminated timber and wood-CFRP composite beams exposed to local fire. The research includes conducting preliminary tests and analyzing the combustion and failure behavior of the beams under different conditions using a self-designed experimental stand.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Chunxiao Yang, Hang Su, Guanben Du, Xiangyu Ren, Yingchen Wu, Huijun Zhang, Kelu Ni, Xin Ran, Jun Li, Wei Gao, Long Yang
Summary: In this study, a hyperbranched crosslinked starch-based adhesive was prepared by the reaction between dialdehyde starch and polyamine. The adhesive exhibited improved water resistance and high strength, making it suitable for aldehyde-free bio-based wood adhesives.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Yue Wang, Tianxiang Wang, Roberto Crocetti, Magnus Walinder
Summary: This study investigated the mechanical properties of unmodified and acetylated birch plywood under different humidity conditions. Prediction formulas for mechanical properties with moisture content were derived, and the variations of brittleness factors and indexes were studied.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Materials Science, Paper & Wood
Adam Faircloth, Loic Brancheriau, Hassan Karampour, Chandan Kumar
Summary: This study developed classical vibration analysis methods for rapid panel characterization of cross-laminated timber, allowing for the prediction of elastic and shear moduli. The non-destructive technique showed good consistency with static reference method and non-destructive technique.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Jianwei Lu, Yangang Jiang, Zihao Wen, Zhengjin Luo, Yufei Qiao, Li Guo
Summary: In this study, highly carboxylated absorption media were fabricated using bacterial cellulose nanofibrous aerogel in combination with citric acid. The resulting absorption media exhibited a highly interconnected open porous structure, hydrophilicity, and a large specific surface area. They also displayed high absorption capacity and fast equilibrium for positively charged proteins, as well as selectivity and acid/alkaline resistance.
Article
Materials Science, Paper & Wood
Shimin Chu, Lanying Lin, Yu Zhang, Dong Wang
Summary: This study evaluated the physical properties, microstructure, chemical composition, and micromechanics of archaeological wood from the Shahe Ancient Bridge site. The results showed that the deterioration of Phoebe sp. wood was more severe than that of Abies sp. wood, despite the higher basic density of Phoebe sp. wood. The changes in cell wall structure increased the hardness and decreased the elastic modulus of the cell walls.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
F. Rabiei, Sh. Souri
Summary: This research investigates the effective parameters of wood dust generation in CNC milling and establishes a quadratic regression equation to optimize the parameters and reduce wood dust. The study shows that the depth of cut, step over, feed rate, and cutting speed have significant impacts on wood dust generation. By optimizing these parameters, wood dust can be minimized to a level much lower than the safety standard.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Tao Ding, Ziyang Qin, Ruotong Luan
Summary: It was found that heat treatment significantly darkened the wood, with higher treatment temperatures resulting in a darker appearance. Exposure tests reduced the color difference caused by the treatment. Indoor space had limited influence on wood color, while outdoor space eventually turned the board color to silver gray. In the transitional space, heat-treated wood was more sensitive to longer wavelength light and showed greater color change than untreated wood.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Patryk Maciej Krol, Grzegorz Koczan
Summary: This study investigated the trajectory of a small-dimension drill bit in wood-based materials and used computer vision to determine the three-dimensional position of the hole. The results showed a good correlation between total deviation and initial deviation in medium-density boards and hardboards.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Nik Muhammad Faris Hakimi, Siti Fatahiyah Mohamad, Syeed Saifulazry Osman Al Edrus, Petar Antov, Widya Fatriasari, Khalina Abdan, Seng Hua Lee
Summary: In this study, radiation-induced admicellar polymerization was used to modify the surface of cellulose nanofibrils (CNFs) with methacrylic acid (MAA), aiming to obtain pH-responsive CNFs. The changes in chemical, physical, and morphological properties of CNF-grafted poly(methacrylic acid) (PMAA) were investigated under different absorbed radiation doses and MAA concentrations. The results showed that 20 kGy was the optimal radiation dose, resulting in the highest carboxyl concentration. The admicellar polymerization was successful, as demonstrated by the FTIR band. The diameter of CNFs increased with the amount of grafted PMAA. TGA analysis revealed dipole-dipole interactions and hydrogen bonding, indicating the success of the polymerization. Additionally, the PMAA reduced the crystallinity index of CNFs. The absolute zeta value of CNF-grafted-PMAA exhibited pH-dependent behavior. This research demonstrates the feasibility of radiation-induced admicellar polymerization for surface modification of nanoparticles.
Review
Materials Science, Paper & Wood
Sabyasachi Mondal, Ankitha Athreya Ramachandran, Sirshendu De, Parag Kanthale
Summary: This article reviews the types, characteristics, and global discharge standards of wastewater generated in the man-made cellulosic fibres (MMCF) industry. Current effluent treatment methods are critically evaluated, with a focus on reducing impurities, recovering value, and recycling water. The selection criteria for a technically and economically feasible treatment solution are discussed, as well as potential improvements for conventional zero liquid discharge systems in the MMCF industry.
Article
Materials Science, Paper & Wood
Lu Cai, Cun Lv, Xinyue Yan, Haiyan Mao, Tianchi Zhou, Xuemei He, Tianxue Zhu
Summary: This paper successfully synthesized novel short-chain fluorinated polysiloxanes with multi-functions and applied them on cotton fabrics. The treated cotton fabrics showed high liquid repellency, washing durability, thermal stability, improved fabric style and color deepening.
Article
Forestry
Yao Du, Biao Tian, Jian Zhang, Li Li, Hongguang Liu, Bin Luo
Summary: This study investigated the precision-shaped abrasive belt (PSA) for sanding wooden materials, and found that it exhibited better sanding stability, removal efficiency, and surface quality compared to ordinary coated abrasive belts (OCAs). The side-face angle of the PSA played a vital role in its performance and dust removal effectiveness.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Forestry
Luyang Wang, Ke Shi, Chunxia He
Summary: This study selected seven natural materials and found that champagne bark could be used as an artificial turf filling granule to replace rubber particles, with better resilience, mold resistance, and angle of repose.
Article
Materials Science, Paper & Wood
Jenny Alongi, Rony Aad, Paolo Ferruti, Elisabetta Ranucci
Summary: This study investigates the enhancement of cotton flame retardancy through the interaction between Ca2+ ions and aspartic acid-derived polyamidoamine (M-ASP). The presence of Ca2+ ions improves the thermal stability of cotton treated with M-ASP, surpassing the efficacy of glycine-derived polyamidoamine (M-GLY). Horizontal flame spread tests demonstrate that M-ASP/CaCl2 provides better protection for cotton compared to M-ASP, and the effect of Ca2+ ions on cotton/M-ASP is greater than on cotton/M-GLY. In vertical flame spread tests, M-ASP fails to stop cotton combustion, but M-ASP/CaCl2 coatings with low add-ons inhibit cotton ignition and leave almost intact mass.
Article
Materials Science, Paper & Wood
Sungjun Hwang, Colleen C. Walker, Soydan Ozcan, Halil Tekinalp, Yousoo Han, Douglas J. Gardner
Summary: In this study, three types of wood pulp feedstocks were disk refined to produce cellulose nanofibrils at different fineness levels. The resulting suspensions of cellulose nanofibrils were then spray dried to obtain free-flowing powder samples. The particle size of the dry CNF powders was found to be smaller at higher fibrillation levels and lower solids content of the suspensions.
Article
Forestry
Ryutaro Sudo, Kenji Aoki
Summary: This study aims to observe and clarify the surface strain distribution and internal failure behavior of wood-based panels. The failure behaviors of plywood and oriented strand board are likely determined by the direction of the veneer fibers and the layer's position, respectively.
JOURNAL OF WOOD SCIENCE
(2023)
Article
Materials Science, Paper & Wood
Kossi Novinyo Segla, Kossi Adjonou, Rabiou Habou, Adzo Dzifa Kokutse, Ali Mahamane, Patrick Langbour, Daniel Guibal, Gilles Chaix, Kouami Kokou
Summary: This study examined the wood properties of Pterocarpus erinaceus in West Africa, focusing on wood fiber properties and their influence on density and dimensional characteristics. The results showed significant variations in fiber parameters among different climatic zones, but no significant correlation between cambial age and fiber properties was found.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
Article
Materials Science, Paper & Wood
Tiantian Yang, Dan Luo, Chen Hu, Lingcheng Wang, Changtong Mei
Summary: This study used LF-NMR to characterize the changes in water state during the delignification process in wood. The results showed that delignified wood had increased water absorption capacity and generated more and faster free water. Scanning electron microscopy and Fourier transform infrared analysis confirmed that delignification altered the wood-water interaction environment, increasing the percentage of hygroscopic polysaccharides and sorption site concentration. The generation of new pores after delignification provided more paths for water exchange and accommodation. Delignified wood also exhibited faster moisture decrease during air-drying, facilitated by enriched water exchange paths and higher initial moisture gradient difference in water-saturated delignified wood. The study provides new insight into the role of lignin in water state changes during wood-water interactions and may aid in the preparation of functional materials and wood modification.
WOOD MATERIAL SCIENCE & ENGINEERING
(2023)
