Article
Polymer Science
Hyunchul Ahn, Jae-Hyung Wee, Yong Min Kim, Woong-Ryeol Yu, Sang-Young Yeo
Summary: PAN fibers, commonly used as precursor fibers for carbon fiber production, undergo dry and wet drawing processes with variations in mechanical properties and microstructures. The study suggests that combining different processes could lead to a stable and efficient drawing process design.
Article
Chemistry, Physical
Luyan Wang, Yueguang Yu, Peng Zhang, Jiancan Yang
Summary: This paper investigates the preparation process of lanthanum-doped tungsten wire and provides the optimal process parameters, including temperature, compression ratio, and mold temperature. The effects of high and low temperatures on the fiber-like grains of tungsten wire are also discussed.
Article
Construction & Building Technology
Irina Volokitina, Andrey Volokitin, Evgeniy Panin, Tatiana Fedorova, Dmitry Lawrinuk, Alexandr Kolesnikov, Almas Yerzhanov, Zoya Gelmanova, Yury Liseitsev
Summary: This paper investigates the evolution of microstructure and mechanical properties of copper wire during a new combined straining process. The use of a rotating equal-channel step die and subsequent drawing results in an ultra-fine grain gradient microstructure and increased tensile and yield strength of the copper wire.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Zhihao Zhang, Jialiang Zhou, Senlong Yu, Lifei Wei, Zexu Hu, Hengxue Xiang, Meifang Zhu
Summary: In this study, a series of copolyester fibers based on terephthalic acid (PTA), ethylene glycol (EG), and L-Lactide (L-LA) were prepared. The resulting PETLA fibers exhibited tunable structure and properties due to the synergistic effects of the chemical structure and the drawing process. The breaking strength of the PETLA fibers dropped from 5.3 cN/dtex of PET to 2.8 cN/dtex of PET85LA15, which still met the requirements of most textile applications. Therefore, this work presents a feasible approach to prepare bio-based polyester fibers with tunable properties.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Jianchen Cai, Jinyun Jiang, Qun Yang, Peng Cheng, Ke Chen, Suwei Wang
Summary: This study investigated the effects of drawing parameters on the properties of polypropylene/inorganic particle composites fabricated through a solid-state die drawing process. It was found that the mechanical properties of the drawn composites were significantly improved under specific drawing conditions. The drawn composites with 45 wt% CaCO3 showed the best performance when drawn at a speed of 2.0 m/min and a temperature of 110°C.
Article
Polymer Science
Kai Weng, Fang Li, Yumiko Takayama, Motomu Nishijo, Toshihisa Tanaka
Summary: This study investigated the effects of different soaking solvents on the crystallization and stretching properties of polymer films. Different results were observed in terms of microcrystal nucleation and stretching structure, depending on the soaking conditions. Soaking in ice-water or hexane promoted the formation of microcrystal nucleation and increased the tensile strength, while soaking in methanol inhibited the mobility and stretchability. Soaking in air maintained the amorphous state of the molecular chains.
Article
Materials Science, Textiles
Subrata Das, Keerthana Palanivel, Nivetha Sharathi Senthil Kumar
Summary: Attempts have been made to use air-vortex cotton-blended spun yarn for sewing thread, and it is observed that the sewing thread with 5.9% concentration of lubricant performs better compared to that with 2.9%.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Engineering, Chemical
Suhyun Lee, Soohyeon Rho, Daeyoung Lim, Wonyoung Jeong
Summary: This study aimed to establish an automatic sewing process for garment production based on textile properties. Through experiments on different fabrics, optimal presser height and sewing speed were determined, providing basic data for automation in factory production.
Article
Polymer Science
Chulmin Youn, Hyeon Jung Gwak, Younghwan Bae, Dokun Kim, Byeong Jin Yeang, Song Jun Doh, Sang Young Yeo
Summary: This study investigated the effect of thermal drawing process on the mechanical properties of PEI filaments. The results showed that optimizing the draw ratio, process temperature, and cooling temperature can lead to PEI filaments with excellent mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
C. Keller, F. Moisy, N. Nguyen, S. Eve, A. Dashti, B. Vieille, A. Guillet, X. Sauvage, E. Hug
Summary: The present study investigated the mechanical behavior of severely plastic-deformed Cu-Al composite wires with different diameters and heat treatments. It was found that heat-treated wires exhibited improved ductility and yield stress compared to those without heat treatment, and the formation of intermetallic compounds significantly influenced the mechanical properties.
MATERIALS CHARACTERIZATION
(2021)
Article
Engineering, Manufacturing
Amirpasha Moetazedian, James Allum, Andrew Gleadall, Elisa Mele, Vadim V. Silberschmidt
Summary: This study demonstrated a new treatment method using chemical immersion in acetone to selectively modify mechanical and geometrical properties of PLA and ABS materials, resulting in increased plasticity and shortened recovery time through annealing. The hybrid process, MaTrEx AM, allowed for localized modification of mechanical properties to increase toughness and redirect strain, showing potential for enhancing material functionality.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Ines Richard, Anjani K. Maurya, Shahrzad Shadman, Eloise Masquelier, Lison S. Marthey, Antonia Neels, Fabien Sorin
Summary: This study investigates the influence of thermal drawing parameters on the orientation of polymer chains, thermal shrinkage behavior, and mechanical properties of multimaterial fibers. The findings suggest that drawing stress, dependent on speed and temperature, plays a key role in controlling thermal shrinkage and mechanical properties. Additionally, the use of polymer chain alignment to tune fiber properties and the development of controlled bending multimaterial fibers are highlighted.
Article
Mechanics
Sanjay Kumar, Chang-Mou Wu, Wen-You Lai, Po-Chun Lin
Summary: This study found that the bearing strength of srrPET composites is primarily dependent on the W/D ratio, while the E/D ratio does not have a significant impact. Additionally, srrPET composites showed better fatigue cycles compared to srrPET-FR composites.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Aerospace
Shuowen Zhang, Dawei Zhang, Shengdun Zhao, Fei Jiang, Myoung-Gyu Lee
Summary: The influence of lubrication and operating conditions on the surface and subsurface characteristics in the axial-infeed thread rolling process (ATRP) was investigated. It was found that MoS2 grease is more effective in reducing surface roughness and defects than lubrication oil and water-base graphite. Increasing rolling speed improves surface quality and reduces roughness. Intensive shear stress occurs in a narrow region on the subsurface, resulting in grain elongation, refinement, and an increase in low angle grain boundary fraction.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Multidisciplinary Sciences
Xiaokang Zhang, Mengkui Cui, Shuoshuo Wang, Fei Han, Pingping Xu, Luyao Teng, Hang Zhao, Ping Wang, Guichu Yue, Yong Zhao, Guangfeng Liu, Ke Li, Jicong Zhang, Xiaoping Liang, Yingying Zhang, Zhiyuan Liu, Chao Zhong, Weizhi Liu
Summary: This study presents the production of protein-based fibers with outstanding extensibility and self-recovery properties by using recombinant scallop byssal proteins. Through selecting the most abundant scallop byssal protein type 5-2 and applying an organic solvent-enabled drawing process, bio-inspired extensible fibers with high-extensibility and self-recovery capability in wet condition were successfully produced. The mechanical properties of the fibers were regulated by hydrogen bonding and intermolecular crosslinking.
NATURE COMMUNICATIONS
(2022)
