Article
Chemistry, Physical
Sierra Talcott, Benjamin Uptmor, Armando G. G. McDonald
Summary: This study evaluated the use of waste natural fibers from milled hop bines and hemp stalks, compared to commercial wood fiber, in wood-plastic composite (WPC) materials. The fibers were characterized and WPCs were produced using a blend of fibers, high-density polyethylene (HDPE), and a coupling agent. The mechanical, rheological, thermal, viscoelastic, and water resistance properties of the WPCs were analyzed. The results showed that the different lignocellulosic fibers had varying effects on the WPC properties, with the hop and hemp-based WPCs comparable to commercial WPCs.
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
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
Materials Science, Textiles
Gabriel Furtos, Luminita Molnar, Laura Silaghi-Dumitrescu, Petru Pascuta, Kinga Korniejenko
Summary: Geopolymers based on fly ash with wood fiber reinforcement show reduced mechanical properties with increasing wood fiber content. 20 wt% wood fiber addition might be the limit for acceptable mechanical properties, while 20-35 wt% wood fiber addition could offer a promising green alternative for building materials.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Construction & Building Technology
Wei Tang, Junjie Xu, Qi Fan, Wenjuan Li, Haiyang Zhou, Tao Liu, Chuigen Guo, Rongxian Ou, Xiaolong Hao, Qingwen Wang
Summary: This study successfully fabricated low-cost and high-strength ultra-high-filled wood fiber/polypropylene composites using recycled polypropylene and wood fiber, showing excellent mechanical properties and creep resistance.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Composites
Xiangrui Li, Mengyao Han, Mingli Liu, Lei Le, Lipeng Meng, Yu Lin, Jiaming Yu, Lingyu Meng, Chunfeng Li
Summary: The study investigates the influence of micron-sized diatomite dosage on the physical, mechanical, rheological, and creep properties of poplar wood/polypropylene (PW/PP) composites. The addition of diatomite enhances the density, improves the toughness, impact strength, tensile strength, and elongation at break of the composites. The diatomite also improves the processability and creep resistance of the composite system.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Adewale George Adeniyi, Sulyman Age Abdulkareem, Samson Akorede Adeoye, Joshua O. Ighalo
Summary: This study developed wood dust reinforced polystyrene composites and investigated the influence of filler concentration, filler size, and NaOH concentration on the material properties. It was found that under specific conditions, the mechanical and thermal properties of the composite were significantly improved.
Article
Forestry
M. S. Sukiman, T. Kanit, F. N'Guyen, A. Imad, F. Erchiqui
Summary: This study focuses on the thermal properties of wood particle reinforced HDPE composites (WPC) using experimental, theoretical, and computational modeling approaches. The results show that adding wood particles can significantly reduce the thermal conductivity of the WPC. The theoretical models and computational results are consistent with the experimental results, but there is a divergence as the wood content increases. The computational homogenization method with porosity estimation can improve the consistency.
WOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Composites
Ya Liu, Yanjin Guan, Yi Li, Jiqiang Zhai, Xiping Li, Jun Lin
Summary: This study reports a promising method to prepare lightweight and strong PP/graphite nanosheet (GN) nanocomposite foaming products. By adding GN, the crystallization behavior and rheological behavior of PP are improved, and excellent cellular structure is achieved using mold-opening foaming injection molding technology. PP/GN nanocomposite foam exhibits high tensile strength, modulus, and impact strength.
COMPOSITES COMMUNICATIONS
(2022)
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
Agricultural Engineering
Thanh Mai Nguyen Tran, M. N. Prabhakar, Jung-il Song
Summary: This study successfully achieved the desired properties of green composites by optimizing the reinforcement strategy with waste pinecone powder and short woven flax fabrics, improving the mechanical, thermal, and flame-retardant properties of PP significantly.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Construction & Building Technology
Merve Sonmez Tugluca, Emine Ozdogru, Huseyin Ilcan, Emircan Ozcelikci, Huseyin Ulugol, Mustafa Sahmaran
Summary: This study investigated the incorporation of waste wood fiber (WWF) into cementitious composites by alkali-treatment. The results showed that alkali-treated WWF had higher flexural and compressive strength in the cementitious matrix.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Bedriye Ucpinar Durmaz, Ayse Aytac
Summary: This paper reports on the properties of partially bio-based and biodegradable PA11/PLA blends in the presence of different amounts of carbon fiber (CF). The addition of CF improved the mechanical and thermal properties of the blend, enhancing the melt strength and stiffness of the PA11/PLA matrix.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Lun Howe Mark, Chongxiang Zhao, Raymond K. M. Chu, Chul B. Park
Summary: This study focuses on the creation and application of PET nanofibrils for PP composite reinforcement. By using a spunbond process, PET nanofibrils are fibrillated within a PP matrix, leading to improved tensile and flexural performance in injection molded parts. The nanofibrils also enhance the microcellular morphology in foam injection molding, resulting in further improved performance.
Article
Chemistry, Multidisciplinary
Daohai Zhang, Xiaoyu Shang, Jiyong Luo, Junzhuo Sun, Fang Tan, Dongmei Bao, Shuhao Qin
Summary: A bridged 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivative (DiDOPO) with conjugated structure was used as a novel conjugated flame retardant in polypropylene (PP)/DiDOPO conjugated flame retardant composites. The composites showed improved flame retardancy, reduced heat release rate, and enhanced melt stability.
FRONTIERS IN CHEMISTRY
(2022)
