Mussel-Inspired Polymer-Based Universal Spray Coating for Surface Modification: Fast Fabrication of Antibacterial and Superhydrophobic Surface Coatings

2018 ◽  
Vol 5 (5) ◽  
pp. 1701254 ◽  
Author(s):  
Christoph Schlaich ◽  
Mingjun Li ◽  
Chong Cheng ◽  
Ievgen S. Donskyi ◽  
Leixiao Yu ◽  
...  
Keyword(s):  
Surface Modification ◽  
Superhydrophobic Surface ◽  
Spray Coating ◽  
Surface Coatings

Development of a nonwetting coating for packaging substrate surfaces using a novel and easy to implement method

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Çağla Koşak Söz ◽  
Zafer Özomay ◽  
Semra Unal ◽  
Muhammet Uzun ◽  
Sinan Sönmez
Keyword(s):  
Surface Modification ◽  
Superhydrophobic Surface ◽  
Surface Coatings ◽  
Surface Wetting ◽  
Coated Paper ◽  
Inorganic Particles ◽  
Coating Application ◽  
Water Based ◽  
Substrate Surfaces ◽  
Paper Substrates

Abstract This study is about preparing different paper substrates with chemically stable hydrophobic and superhydrophobic surface coatings through spraying a mixture of poly(dimethylsiloxane) (PDMS) and inorganic particles. The method is easy to implement, reproducible and requires inexpensive starting materials. Non-colored and colored types of (i) raw paper (UC), (ii) glossy coated paper (GC) and (iii) matte coated paper (MC) surfaces were selected for surface modification through the coating application. Both water-based ink (WB) and solvent-based ink (SB) formulations were used to dye substrate surfaces. Investigations including surface wetting, optical and physical properties of the coated paper substrates revealed that the coating application method proposed is a promising lacquer alternative for packaging purposes.

scholarly journals Superhydrophobicity and Durability in Recyclable Polymers Coating

2021 ◽  
Vol 13 (15) ◽  
pp. 8244
Author(s):  
Francesca Cirisano ◽  
Michele Ferrari
Keyword(s):  
Thermal Treatment ◽  
Superhydrophobic Surface ◽  
Low Cost ◽  
Spray Coating ◽  
Large Area ◽  
Average Roughness ◽  
Water Contact ◽  
Alkaline Environments ◽  
Fine Control ◽  
Recycle And Reuse

Highly hydrophobic and superhydrophobic materials obtained from recycled polymers represent an interesting challenge to recycle and reuse advanced performance materials after their first life. In this article, we present a simple and low-cost method to fabricate a superhydrophobic surface by employing polytetrafluoroethylene (PTFE) powder in polystyrene (PS) dispersion. With respect to the literature, the superhydrophobic surface (SHS) was prepared by utilizing a spray- coating technique at room temperature, a glass substrate without any further modification or thermal treatment, and which can be applied onto a large area and on to any type of material with some degree of fine control over the wettability properties. The prepared surface showed superhydrophobic behavior with a water contact angle (CA) of 170°; furthermore, the coating was characterized with different techniques, such as a 3D confocal profilometer, to measure the average roughness of the coating, and scanning electron microscopy (SEM) to characterize the surface morphology. In addition, the durability of SH coating was investigated by a long-water impact test (raining test), thermal treatment at high temperature, an abrasion test, and in acidic and alkaline environments. The present study may suggest an easy and scalable method to produce SHS PS/PTFE films that may find implementation in various fields.

Screen-printed BaCe0.8Sm0.2O3−δ thin membrane solid oxide fuel cells with surface modification by spray coating

2009 ◽  
Vol 473 (1-2) ◽  
pp. 48-52 ◽  
Author(s):  
Lei Bi ◽  
Shangquan Zhang ◽  
Bin Lin ◽  
Shumin Fang ◽  
Changrong Xia ◽  
...  
Keyword(s):  
Surface Modification ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Spray Coating ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Thin Membrane ◽  
Screen Printed

scholarly journals Assembly Mechanism and the Morphological Analysis of the Robust Superhydrophobic Surface

Coatings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 472 ◽  
Author(s):  
Doeun Kim ◽  
Arun Sasidharanpillai ◽  
Ki Hoon Yun ◽  
Younki Lee ◽  
Dong-Jin Yun ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Superhydrophobic Surface ◽  
Spray Coating ◽  
Silica Nanoparticle ◽  
Contact Angle Measurement ◽  
Angle Measurement ◽  
Thin Layers ◽  
Superhydrophobic Surfaces ◽  
Assembly Mechanism ◽  
Developed Surface

Robust superhydrophobic surfaces are fabricated on different substrates by a scalable spray coating process. The developed superhydrophobic surface consists of thin layers of surface functionalized silica nanoparticle (SiO2) bound to the substrate by acrylate-polyurethane (PU) binder. The influence of the SiO2/PU ratio on the superhydrophobicity, and the robustness of the developed surface, is systematically analyzed. The optimized SiO2/PU ratio for prepared superhydrophobic surfaces is obtained between 0.9 and 1.2. The mechanism which yields superhydrophobicity to the surface is deduced for the first time with the help of scanning electron microscopy and profilometer. The effect of mechanical abrasion on the surface roughness and superhydrophobicity are analyzed by using profilometer and contact angle measurement, respectively. Finally, it is concluded that the binder plays a key role in controlling the surface roughness and superhydrophobicity through the capillary mechanism. Additionally, the reason for the reduction in performance is also discussed with respect to the morphology variation.

Surface Modification and Repair for Aircraft Life Enhancement and Structural Restoration

2010 ◽  
Vol 654-656 ◽  
pp. 763-766 ◽  
Author(s):  
Qian Chu Liu ◽  
Pud Baburamani ◽  
Wyman Zhuang ◽  
Darrem Gerrard ◽  
Bruce Hinton ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cold Spray ◽  
Laser Cladding ◽  
Particle Deposition ◽  
Research Work ◽  
Spray Coating ◽  
Rolling Friction ◽  
Scientific Management ◽  
Friction Stir ◽  
Advantages And Disadvantages

Maintenance of ageing military aircraft structures encompasses both engineering and scientific management. In support of this, surface modification and repair methods are used on an opportunity basis to extend the life of aircraft in terms of fatigue and safety. Often, certain surface modification technologies have proved to be both cost effective and amenable for safe application. Some candidate technologies include shot peening, cold spray, deep surface rolling, friction stir welding, laser shock peening, and laser cladding. Whilst some technologies have been successfully applied to Australian Defence Force (ADF) aircraft in the past, some newer technologies are also being considered. The supersonic particle deposition (SPD) technology also known as cold spray coating has been recently approved for application on a helicopter gear box. Another technology of significance to ADF application is Laser Cladding (LC) technology. This paper briefly summarises the research work on these technologies at DSTO and discusses potential applications for aircraft components in the near future. It also provides an analysis of technologies and their potential advantages and disadvantages.

Hydrophobic to superhydrophobic surface modification using impacting particulate sprays

2014 ◽  
Vol 311 ◽  
pp. 89-94 ◽  
Author(s):  
Chun Yat Lau ◽  
Thach Vuong ◽  
Jingming Wang ◽  
Murat Muradoglu ◽  
Oi Wah Liew ◽  
...  
Keyword(s):  
Surface Modification ◽  
Superhydrophobic Surface
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