Article
Materials Science, Paper & Wood
Prodyut Dhar, Kazuki Sugimura, Mariko Yoshioka, Arata Yoshinaga, Hiroshi Kamitakahara
Summary: This paper presents a microbial approach to fabricate biomimetic composites that mimic natural wood. The researchers focused on the chemical composition of woody biomass and used bacterial cellulose imbued in modified cationic lignin for in situ bioprocessing. The resulting composites exhibited enhanced thermal stability and crystallinity, as well as comparable tensile properties and specific strength to heavy wood species under hydrated conditions.
Article
Polymer Science
Geeta Pokhrel, Douglas J. Gardner, Yousoo Han
Summary: This study investigates the properties of WPCs made from wood flour and wood pellets, showing that composite products from wood pellets have higher density but lower tensile strength, tensile modulus, and impact strength compared to those made from wood flour. Flexural properties of composites made with pellets were higher without MAPP, but lower with it. Overall, the mechanical property differences between the two were low (0.5-10%) depending on the specific WPC formulations. Statistical analysis indicated no significant differences in material properties between composites made from wood flour and wood pellets, with some situations showing better WPC properties using wood pellets.
Article
Engineering, Biomedical
Sophie Marie Koch, Christian Goldhahn, Florence J. Muller, Wenqing Yan, Christine Pilz-Allen, Cecile M. Bidan, Beatrice Ciabattoni, Laura Stricker, Peter Fratzl, Tobias Keplinger, Ingo Burgert
Summary: Delignified wood (DW) offers a versatile platform for manufacturing composites with a wide range of material properties. This study presents a method for fabricating anisotropic and mechanically tunable DW-hydrogel composites. The mechanical properties of these composites can be adjusted by crosslinking time and diffusion-led crosslinking allows for the manufacturing of mechanically graded structures. The resulting anisotropic DW-hydrogel composite enables cell alignment in vitro, which has potential applications in tissue engineering.
MATERIALS TODAY BIO
(2023)
Article
Chemistry, Physical
Hailong Xu, Yang Yang, Lifen Li, Baoyu Liu, Xiubo Fu, Xiaohui Yang, Yan Cao
Summary: This study investigated the influence of fiber particle size on the mechanical properties of a wood-plastic composite (WPC). Different sizes of wood fibers were used to reinforce high-density polyethylene (HDPE), either separately or in combination. The results showed that the smallest fiber size resulted in the lowest flexural and tensile properties, but the highest impact strength. Using a blend of fiber sizes led to improved mechanical properties, with composites containing a mix of 20-40 mesh and 40-80 mesh fibers exhibiting the best flexural and tensile performance.
Article
Chemistry, Multidisciplinary
Yonghui Zhou, David Hui, Yuxuan Wang, Mizi Fan
Summary: This article presents the assessment of mechanical properties of rubber-wood-plastic composites (RubWPC) and their correlations. The results showed that the composites treated with multiple coupling agents exhibited superior interfacial bonding quality and nanomechanical property.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Construction & Building Technology
Ayfer D. Cavdar, Husnu Yel, Sevda B. Torun
Summary: This study investigates the performance of microcrystalline cellulose (MCC) as a reinforcement in cementitious wood particle products. The addition of MCC to wood cement boards improves water absorption, shrinkage, and mechanical properties. The dispersion effect of MCC in the cement matrix is observed under the scanning electron microscope.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Polymer Science
Kishor Biswas, Vinay Khandelwal, Sourindra Nath Maiti
Summary: Teak wood flour reinforced high density polyethylene and maize starch composites were prepared with maleic anhydride grafted polyethylene as a compatibilizer. Mechanical properties of the composites improved with the addition of teak wood flour, while the damping factor peak and storage modulus were higher than HDPE, showing potential for interior, automobile, and packaging applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Pooria Khalili, Mikael Skrifvars, Hom Nath Dhakal, Saeid Hosseinpour Dashatan, Mikael Danielsson, Alexia Feiner Gracia
Summary: Sandwich composites consisting of regenerated cellulose fabric and bio-based polypropylene as facings, as well as virgin and recycled polyamide textiles as core materials, were produced using compression moulding techniques. The addition of thicker recycled textile improved the bending stiffness and peak flexural force. Substituting one layer of recycled textile for two layers of virgin material provided good impact energy absorption capacity and maximum force. Tensile strength varied among the different composite materials, but no evidence of fiber tow debonding, fiber bundle splitting, or delamination was observed.
Review
Chemistry, Multidisciplinary
Mark Schubert, Guido Panzarasa, Ingo Burgert
Summary: Wood, as a renewable resource, has excellent qualities and has the potential to play a key role in the future bioeconomy. The increasing environmental awareness and drive for sustainability are leading to a resurgence of research on wood materials. However, global climate change will soon pose challenges to the wood-value chains in different regions. This review addresses the natural diversity of wood and discusses the need for new wood processing techniques and green chemistry protocols to manage a more diverse wood provision in the future.
Article
Agricultural Engineering
Yucheng Hu, Fuqiang Hu, Meixue Gan, Yimin Xie, Qinghua Feng
Summary: Utilizing a new green aqueous solvent, cellulosic self-reinforcing composites (CSRCs) were rapidly obtained by partially dissolving wood and bamboo pulp at 8 degrees C. The solvent system was found to hinder the self-reinforcing process by affecting lignin and degree of polymerization. Characterization through various methods revealed cellulose I was partially replaced by cellulose II, leading to a significant increase in tensile strength.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Forestry
Feiyu Ouyang, Wei Wang
Summary: This paper utilizes molecular dynamics simulation to construct a water and cellulose model and investigate the behavior characteristics of cellulose in thermo-hydro-mechanical treatment. The results indicate that pressure has a significant impact on the mechanical properties of cellulose, primarily due to the formation of hydrogen bonds.
Article
Engineering, Manufacturing
Reyhaneh Laghaei, Seyyed Mahdi Hejazi, Hossein Fashandi, Saleh Akbarzadeh, Samira Shaghaghi, Alireza Shamaei-Kashani, Bijan Jahanara, Elaheh Shahsavari
Summary: Triaxial E-glass fabric/CNCs/epoxy composites were fabricated using the vacuum-assisted resin infusion procedure. The effects of mixing medium and CNC concentration on the mechanical properties of the composites were evaluated. Incorporation of CNCs enhanced the fracture toughness and energy absorption during fracture of the composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Multidisciplinary Sciences
Qingde Li, Feng Chen, Tonghui Sang
Summary: The effects of impulse-cyclone drying technique on the UV-accelerated aging properties of HDPE/wood fiber composites were investigated. The results show that the addition of wood fibers treated by impulse-cyclone drying (220 degrees C) and A187 modification is effective in enhancing the anti-UV aging properties of the composites.
Article
Materials Science, Paper & Wood
Krishna Prasad Kandel, Menuka Adhikari, Madhav Kharel, Girja Mani Aryal, Shiva Pandeya, Mahesh Kumar Joshi, Bipeen Dahal, Bhoj Gautam, Bhanu Bhakta Neupane
Summary: In this research, alkali was extracted from wood ash and used to process lignocellulose fiber obtained from Sterculia villosa. The findings showed that the fiber treated with wood-ash alkali had similar mechanical strength to the fiber treated with sodium hydroxide, indicating that wood-ash alkali treatment could be a low-cost method for processing lignocellulose biomass.
Article
Polymer Science
Maciej Mrowka, Malgorzata Szymiczek, Magdalena Skonieczna
Summary: The study investigated the impact of wood waste on the mechanical and biological properties of silicone-based composites, revealing changes in the properties of the composites. Despite these changes, the composites showed no cytotoxicity to human cells and have potential for creating structures on the seabed.
Article
Polymer Science
Santosh Biranje, Pallavi Madiwale, R. V. Adivarekar
JOURNAL OF POLYMER RESEARCH
(2017)
Article
Chemistry, Applied
Santosh Biranje, Pallavi Madiwale, R. V. Adivarekar
JOURNAL OF POROUS MATERIALS
(2019)
Article
Biochemistry & Molecular Biology
Santosh S. Biranje, Pallavi Madiwale, Kaustubh C. Patankar, Rohan Chhabra, Prajakta Dandekar-Jain, Ravindra Adivarekar
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Article
Chemistry, Applied
Ashitosh B. Pawar, Kaustubh C. Patankar, Pallavi Madiwale, Ravindra Adivarekar
PIGMENT & RESIN TECHNOLOGY
(2019)
Article
Chemistry, Applied
Santosh S. Biranje, Pallavi Madiwale, Kaustubh C. Patankar, Rohan Chhabra, Prachi Bangde, Prajakta Dandekar, Ravindra Adivarekar
CARBOHYDRATE POLYMERS
(2020)