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Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1588-6

Abstract:

● A PAA-ZnO-HDTMS flax fiber with UV-induced switchable wettability

Keywords： Flax fiber     Switchable wettability     ZnO-HDTMS coating     Oil-water separation    

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Electroconductive RGO-MXene membranes with wettability-regulated channels: improved water permeability

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1601-8

Abstract:

● Electroconductive RGO-MXene membranes were fabricated.

Keywords： Reduced graphene oxide     MXene     Membrane     Water permeance     Dye rejection     Electro-assistance    

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Seasonal variations in leaf capturing of particulate matter, surface wettability and micromorphology

Huixia WANG, Hui SHI, Yangyang LI, Ya YU, Jun ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 579-588 doi: 10.1007/s11783-013-0524-1

Abstract: The seasonal changes in leaf particulate matter (PM) accumulation, surface wettability and micromorphologyThe increase in wettability, probably caused when epicuticular wax was destroyed by mechanical and chemical

Keywords： contact angle     particulate matter     retention amount    

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Study on wettability of tangential sections of moso bamboo with different pole heights

Zhang Qiaoling,Zhou Hongwei,Liang Tingbin,Tong Xueyan and Zeng Qinzhi

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 56-59

Abstract:

This paper studied the wettability of H2O，phenol formaldehyde adhesiveon the tangential sections of moso bamboo，the dynamic wetting model was built，and the effects on the wettability

Keywords： moso bamboo     pole height     tangential section     contact angle     wettability    

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Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Frontiers of Chemical Science and Engineering   Pages 1672-1680 doi: 10.1007/s11705-022-2205-8

Abstract: Surface wettability of wire mesh significantly affects the liquid flow pattern and liquid dispersionHowever, the effect of surface wettability on the impaction phenomena at microscale such as liquid filmEffects of surface wettability, as well as operating conditions, on wetting area and liquid film thickness

Keywords： stainless steel wire mesh     computational fluid dynamics     surface wettability     liquid film     impacting    

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A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, air conditioning system

Mark BOMBERG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 431-437 doi: 10.1007/s11709-010-0071-9

Abstract: When a historic fa?ade needs to be preserved or when the seismic considerations favor use of a concrete wall system and fire considerations limit exterior thermal insulation, one needs to use interior thermal insulation systems. Interior thermal insulation systems are less effective than the exterior systems and will not reduce the effect of thermal bridges. Yet they may be successfully used and, in many instances, are recommended as a complement to the exterior insulation. This paper presents one of these cases. It is focused on the most successful applications of capillary active, dynamic interior thermal insulation. This happens when such insulation is integrated with heating, cooling and ventilation, air conditioning (HVAC) system. Starting with a pioneering work of the Technical University in Dresden in development of capillary active interior insulations, we propose a next generation, namely, a bio-fiber thermal insulation. When completing the review, this paper proposes a concept of a joint research project to be undertaken by partners from the US (where improvement of indoor climate in exposed coastal areas is needed), China (indoor climate in non-air conditioned concrete buildings is an issue), and Germany (where the bio-fiber technology has been developed).

Keywords： integrated heating     cooling and ventilation     air conditioning (HVAC) and building enclosure     dynamic insulation     switchable    

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Wide-Angle Scanning Antennas for Millimeter-Wave 5G Applications Article

Raj Mittra, Abdelkhalek Nasri, Ravi Kumar Arya

Engineering 2022, Volume 11, Issue 4,   Pages 60-73 doi: 10.1016/j.eng.2021.10.017

Abstract: second design, we turn to phased-array designs in which the conventional phase shifter is replaced by switchable

Keywords： Luneburg lens     Scanning arrays     Millimeter-wave antennas     Switchable phase shifters     Reconfigurable metasurfaces    

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Surface hydrophobicity: effect of alkyl chain length and network homogeneity

Wenqian Chen, Vikram Karde, Thomas N. H. Cheng, Siti S. Ramli, Jerry Y. Y. Heng

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 90-98 doi: 10.1007/s11705-020-2003-0

Abstract: Understanding the nature of hydrophobicity has fundamental importance in environmental applications. Using spherical silica nanoparticles (diameter= 369€±€7 nm) as the model material, the current study investigates the relationship between the alkyl chain network and hydrophobicity. Two alkyl silanes with different chain length (triethoxymethylsilane (C1) vs. trimethoxy(octyl)silane (C8)) were utilised separately for the functionalisation of the nanoparticles. Water contact angle and inverse gas chromatography results show that the alkyl chain length is essential for controlling hydrophobicity, as the octyl-functionalised nanoparticles were highly hydrophobic (water contact angle= 150.6°€±€6.6°), whereas the methyl-functionalised nanoparticles were hydrophilic (i.e., water contact angle= 0°, similar to the pristine nanoparticles). The homogeneity of the octyl-chain network also has a significant effect on hydrophobicity, as the water contact angle was reduced significantly from 148.4°€±€3.5° to 30.5°€±€1.0° with a methyl-/octyl-silane mixture (ratio= 160:40 µL·g nanoparticles).

Keywords： hydrophobicity     surface energy     wettability     alkyl chain network     silica nanoparticle    

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Picosecond Laser Surface Texturing of a Stavax Steel Substrate for Wettability Control Article

Xincai Wang, Hongyu Zheng, Yinchi Wan, Wenhe Feng, Yee Cheong Lam

Engineering 2018, Volume 4, Issue 6,   Pages 816-821 doi: 10.1016/j.eng.2018.10.006

Abstract: The wettability of the laser-textured Stavax steel surface was converted from its original hydrophilicityThe surface wettability of the molded polypropylene was found to be changed from the original hydrophilicitydeveloped process holds the potential to improve the performance of fabricated plastic products in terms of wettability

Keywords： Picosecond laser     Surface texturing     Stavax steel     Polymer     Hydrophobicity    

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Title Author Date Type Operation

Functional flax fiber with UV-induced switchable wettability for multipurpose oil-water separation

Journal Article

Electroconductive RGO-MXene membranes with wettability-regulated channels: improved water permeability

Journal Article

Seasonal variations in leaf capturing of particulate matter, surface wettability and micromorphology

Huixia WANG, Hui SHI, Yangyang LI, Ya YU, Jun ZHANG

Journal Article

Study on wettability of tangential sections of moso bamboo with different pole heights

Zhang Qiaoling,Zhou Hongwei,Liang Tingbin,Tong Xueyan and Zeng Qinzhi

Journal Article

Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Journal Article

A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, air conditioning system

Mark BOMBERG

Journal Article

Wide-Angle Scanning Antennas for Millimeter-Wave 5G Applications

Raj Mittra, Abdelkhalek Nasri, Ravi Kumar Arya

Journal Article

Surface hydrophobicity: effect of alkyl chain length and network homogeneity

Wenqian Chen, Vikram Karde, Thomas N. H. Cheng, Siti S. Ramli, Jerry Y. Y. Heng

Journal Article

Picosecond Laser Surface Texturing of a Stavax Steel Substrate for Wettability Control

Xincai Wang, Hongyu Zheng, Yinchi Wan, Wenhe Feng, Yee Cheong Lam

Journal Article