Article
Materials Science, Textiles
Wen Wang, Hui Chen, Jianzhang Li
Summary: The study demonstrates that incorporating 10 wt.% MAPP into flame-retardant WPCs can significantly enhance their physical, mechanical, and flame-retardant properties, including reduced hygroscopicity, improved flexural performance and impact strength, and decreased heat release and smoke emissions during combustion.
FIBERS AND POLYMERS
(2021)
Article
Chemistry, Physical
Mohammad E. Golmakani, Tomasz Wiczenbach, Mohammad Malikan, Reza Aliakbari, Victor A. Eremeyev
Summary: The present research investigated the mechanical properties of wood flour reinforced polyethylene polymer composites with varying wood flour size, aspect ratios, and mold injection temperature. Results showed that reducing the wood flour size decreased the tensile strength and modulus, flexural strength and impact energy, while increasing the flexural modulus. Additionally, increasing the injection molding temperature decreased the tensile strength and modulus, impact energy, while increasing the flexural strength and modulus. Thus, optimizing the injection molding temperature can improve the mechanical properties of the composite.
Article
Multidisciplinary Sciences
Yasir Qayyum Gill, Umer Abid, Muhammad Shafiq Irfan, Farhan Saeed, Abdul Shakoor, Ateeqah Firdaus
Summary: Wood polymer composites (WPCs) are a highly competitive type of hybrid composite materials with potential applications in automotive, furniture, and construction industry. This study fabricated PP-wood flour composites using melt blending extrusion, and characterized their chemical makeup, mechanical features, thermal stability, and environmental sustainability during machining. The research highlighted the increased stiffness of WPCs due to wood flour loading, as well as the reduced waste generation through drilling composites.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Xiaoping Li, Mingli Qiang, Mingwei Yang, Jeffrey J. Morrell, Neng Zhang
Summary: Natural fiber/plastic composites combine the advantages of natural fibers and plastics, but the difference in hydrophilicity and hydrophobicity between fibers and plastics requires the addition of compatibilizers or pretreatment to enhance their interactions. The use of enzymatic pretreatment and coupling agents can improve the interaction and performance of fiber/plastic composites.
Article
Polymer Science
Hassan Fallah Ahangarkolaei, Mahdi Mashkour, Davood Rasouli
Summary: This study investigates the effect of removing magnetic nanoparticles from the outer surface of magnetic wood flour (MWF) particles on the microstructural, physical, and mechanical properties of MWF-polypropylene nanocomposites. The removal of magnetic nanoparticles did not significantly affect the tensile and flexural strength of the composite specimens. However, it resulted in lower water uptake and higher thickness swelling of the specimens.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Kun Chai, Zesheng Xu, Dong Chen, Yingtao Liu, Yiqun Fang, Yongming Song
Summary: The use of nano TiO2 improves the foamability of microcellular foamed wood-plastic composites (WPCs), resulting in increased cell density and size homogeneity, as well as improved mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Slim Souissi, Ferdaous Lachtar, Ahmed Elloumi, Anne Bergeret
Summary: This study aimed to improve the compatibility and mechanical properties of polypropylene/olive wood flour (OWF) composites by using different treatment methods. Results showed that silane and heat treatments enhanced the thermal stability of OWF and heat treatment introduced higher toughness in the composites. Scanning electron microscopy analysis demonstrated the improved interfacial adhesion and mechanical properties by the treatments.
IRANIAN POLYMER JOURNAL
(2022)
Article
Computer Science, Information Systems
P. Pesante, K. Saavedra, G. Pincheira
Summary: This study focuses on the effective elastic properties of a wood-plastic composite, with numerical predictions and experimental tests showing the impact of factors such as particle size, weight fractions, and orientation. The results indicate that composites with more wood flour content and bigger size have higher elastic modulus, but this is sensitive to the orientation of particles. Additionally, considering particle-size distributions can enhance properties compared to a fixed size of wood flour.
CMC-COMPUTERS MATERIALS & CONTINUA
(2021)
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
Chemistry, Physical
Marcin Malek, Waldemar Lasica, Marta Kadela, Janusz Kluczynski, Daniel Dudek
Summary: In line with the principles of sustainable development, concrete production should utilize environmentally friendly, low-emission, and energy-intensive materials and technologies, as well as proper waste management. This study found that using glass waste as a replacement for components in concrete, and adding polypropylene fibers can significantly improve the tensile strength and splitting strength of concrete.
Article
Materials Science, Composites
Chuigen Guo, Ran Chen, Liping Li
Summary: The study aimed to evaluate the thermal degradation and flame retardancy of straw flour-polypropylene and wood flour-polypropylene composites, showing that the addition of ammonium polyphosphate can significantly improve flame retardancy and increase char residue.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2021)
Article
Food Science & Technology
Ariel Buzera, Evelyne Gikundi, Irene Orina, Daniel Sila
Summary: This study evaluated the effects of different pretreatments and drying methods on the quality characteristics of potato flour. It was found that different potato varieties showed differences in peeling loss. Color parameters were significantly affected by the pretreatments and drying methods, with freeze drying resulting in a lighter color. Boiling and blanching at 95 degrees C followed by oven drying showed better flow characteristics.
Article
Construction & Building Technology
Yunus Erkus, Baha Vural Kok
Summary: The applicability of calcium carbonate and polypropylene composite (PPC) in bitumen modification was investigated in this study. Physical and rheological experiments were conducted to evaluate the performance of the modified binders. The addition of PPC resulted in decreased penetration and increased softening point and viscosity. The binder modified with 21% PPC showed superior rutting resistance compared to bitumen modified with 3% SBS. The 21% PPC modification was found to be the most dominant in terms of the polymeric phase and flexibility.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Polymer Science
Istie Rahayu, Wayan Darmawan, Deded Sarip Nawawi, Esti Prihatini, Rohmat Ismail, Gilang Dwi Laksono
Summary: This study investigated the effect of TiO2 nanoparticle impregnation on the density and dimensional stability of mangium wood. The results showed that TiO2 nanoparticles increased the density, weight percent gain, and bulking effect of the wood. XRD and FTIR analysis confirmed the successful impregnation of TiO2 nanoparticles into the wood, while SEM-EDX analysis revealed that the nanoparticles covered the surface of the wood cells. TiO2-impregnated mangium wood exhibited higher photocatalytic activity, indicating better protection against UV radiation and pollutants.
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)
