Article
Polymer Science
Pornchai Rachtanapun, Dheerawan Boonyawan, Rafael A. Auras, Gopinath Kasi
Summary: The use of SF6 plasma treatment improves the water resistance of Kraft paper. The optimal treatment conditions are 200 mTorr pressure, 50 Watts power, and 5 minutes treatment time. Increasing the treatment time enhances the contact angle, water absorption time, and Cobb test values of the paper, while the thickness and tensile strength remain relatively constant.
Article
Geosciences, Multidisciplinary
Min Yan, Hanxi Luo, Ting Yang, Dongjie Yan, Jianing Wei, Haifei Lin, Shugang Li
Summary: It was found through experimental research that the influence of surface roughness and its fractal characteristics on wettability is quantifiable. Coal samples with different roughness values were obtained by different grinding methods, and wetting tests were conducted using three different wetting solutions. The influence of roughness on wetting parameters was investigated through theoretical analysis and laboratory studies. The fractal characteristics of the coal samples' surface roughness were analyzed using electron microscopy, and the mechanism of the effect of roughness on wetting performance was analyzed in conjunction with parameters.
NATURAL RESOURCES RESEARCH
(2023)
Article
Engineering, Chemical
Qiang Li, Long Liang, Jiakun Tan, Guangyuan Xie
Summary: Surface roughness plays a significant role in the hydrophobicity of particle surface and bubble attachment process. However, there is limited research on the influence of roughness when the surface is contaminated by slime. This study investigated the influence of micron surface roughness on slime coating between quartz particles and coal surface, as well as the bubble attachment process. The findings suggest that high roughness can mitigate slime coating due to larger elastic contact interaction.
MINERALS ENGINEERING
(2022)
Article
Chemistry, Physical
X. L. Wang, W. K. Wang, Z. G. Qu, G. F. Ren, H. C. Wang
Summary: The study focuses on enhancing the surface hydrophobicity of commercial GDL through different methods, resulting in increased surface roughness and improved water removal capacity. By tailoring the surface roughness of carbon fibers in GDL materials, the water contact angle can be significantly increased to enhance water removal ability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Automation & Control Systems
Abhinav Kumar, Suraj Kumar, Manas Das
Summary: Maraging steel 300 is widely used in aerospace, tools, and automotive industries, requiring a polished surface. Conventional polishing methods can deteriorate the material's properties, thus electropolishing is utilized. By adjusting parameters such as temperature, agitation, and polishing time, the best electropolishing performance can be achieved.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yihang Xiao, Jun Zheng, Yongming He, Lei Wang
Summary: Droplet and bubble wetting behaviors have significant differences, and surface roughness affects the wetting behaviors. The study reveals a critical Young contact angle for bubble wetting, above which apparent contact angle and contact angle hysteresis abruptly change. Increased roughness reduces bubble apparent contact angle and contact angle hysteresis.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Xiaolu Li, Tianran Zhang, Fengbin Sun, Ximing Song, Yinke Zhang, Fang Huang, Chuyang Yuan, Hui Yu, Guihao Zhang, Feng Qi, Feng Shao
Summary: This study evaluated the PM retention abilities of ten common tree species in Hangzhou, China, and found that Platanus acerifolia and Sapindus mukorossi had strong abilities to retain particulates. The study also revealed significant correlations between leaf microstructure and PM retention.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Julie Chanut, Yiqian Wang, Irene Dal Cin, Regis D. Gougeon, Eric Ferret, Jean-Pierre Bellat, Thomas Karbowiak
Summary: The surface tension of cork is determined to be 22.6 (+/- 1.2) mN.m(-1), with a polar component at 5.2 (+/- 0.5) mN.m(-1) and a dispersive component at 17.4 (+/- 1.6) mN.m(-1). Cork exhibits an intermediate hydrophobic/hydrophilic behavior with a water contact angle of around 90 degrees.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Energy & Fuels
Gang Wang, Enmao Wang, Qiming Huang, Shengpeng Li
Summary: The study found that the influence of cationic surfactants on the seepage stage of coal seam water injection first decreases and then increases, while the influence of anionic surfactants shows a gradually increasing trend. Additionally, both cationic and anionic surfactants exhibit more significant wetting effects with increasing concentration. Moreover, cations have stronger adsorption to coal molecules and better water solubility than anions.
Article
Materials Science, Coatings & Films
Wisanu Boonrawd, Kamal R. Awad, Venu Varanasi, Efstathios Meletis
Summary: Electrolytic plasma processing (EPP) can create superhydrophilic surface profiles on titanium, enhancing cell adhesion and growth to potentially improve bone implant bonding.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Biomedical
Gulce Cakmak, Meryem Gulce Subasi, Burak Yilmaz
Summary: The study evaluated the effect of thermocycling on resin-matrix CAD-CAM ceramics with different surface treatments, finding that thermocycling can affect the surface roughness, microhardness, and water contact angle of the ceramics. Significant differences were observed in these properties among different materials and surface treatment methods.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Energy & Fuels
Pei Li, Jinchuan Zhang, Reza Rezaee, Wei Dang, Xuekai Li, Cut Aja Fauziah, Haikuan Nie, Xuan Tang
Summary: This study investigated the wetting behavior of Shanxi-Taiyuan shale, showing different wetting properties under different conditions. The wetting of shale is influenced by the organic content, carbonate, and clay mineral content, with a linear negative correlation between surface roughness and wetting behavior. The contradictory wetting behaviors between different methods can be explained by differences in conditions and surface characteristics.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Mechanics
Haojie Xu, Junfeng Wang, Kai Yu, Bin Li, Wei Zhang, Lei Zuo, Hyoung-Bum Kim
Summary: This study investigated the effects of an electric field on droplet impact behavior and dynamic mechanisms. It was found that different impact phenomena occur in different thermal regimes due to the competition between electrostatic and capillary pressures.
Article
Agronomy
Jing Ma, Kuan Liu, Xiaoya Dong, Chenggong Chen, Baijing Qiu, Songchao Zhang
Summary: This study aimed to measure the droplet retention on crop leaves during pesticide application and analyze their surface properties. The results showed that droplet retention varied among different crop types, with different curve patterns. This study has important implications for improving the effectiveness of chemical application and reducing environmental pollution caused by agricultural pesticides.
Article
Agronomy
Songchao Zhang, Meng Huang, Qingqing Zhou, Yuxuan Jiao, Hua Sun, Xiaohui Cheng, Xinyu Xue
Summary: This study investigates the effect of a surfactant additive on droplet properties in unmanned aerial vehicle (UAV) aerial spraying and optimizes the spraying combination for prochloraz emulsion. The results show that the appropriate dosage of the surfactant additive improves the wetting and spreading behavior of the droplets and enhances the deposition effect.