Robust liquid repellency by stepwise wetting resistance

2021 ◽  
Vol 8 (3) ◽  
pp. 031403
Author(s):  
Jing Sun ◽  
Pingan Zhu ◽  
Xiantong Yan ◽  
Chao Zhang ◽  
Yuankai Jin ◽  
...  
Keyword(s):  
Liquid Repellency

Antifouling on Gecko's Feet Inspired Fibrillar Surfaces: Evolving from Land to Marine and from Liquid Repellency to Algae Resistance

2015 ◽  
Vol 2 (13) ◽  
pp. 1500257 ◽  
Author(s):  
Shuanhong Ma ◽  
Qian Ye ◽  
Xiaowei Pei ◽  
Daoai Wang ◽  
Feng Zhou
Keyword(s):  
Liquid Repellency

Rapid and Robust Surface Treatment for Simultaneous Solid and Liquid Repellency

2021 ◽  
Author(s):  
Alex Kate Halvey ◽  
Brian Macdonald ◽  
Kevin Golovin ◽  
Mathew Boban ◽  
Abhishek Dhyani ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Liquid Repellency

Slippery liquid-infused porous surface (SLIPS) with superior liquid repellency, anti-corrosion, anti-icing and intensified durability for protecting substrates

2020 ◽  
Vol 401 ◽  
pp. 126137 ◽  
Author(s):  
Yifei Long ◽  
Xingxing Yin ◽  
Peng Mu ◽  
Qingtao Wang ◽  
Jiangjun Hu ◽  
...  
Keyword(s):  
Porous Surface ◽  
Liquid Repellency

scholarly journals Supramolecular silicone coating capable of strong substrate bonding, readily damage healing, and easy oil sliding

2019 ◽  
Vol 5 (11) ◽  
pp. eaaw5643 ◽  
Author(s):  
Meijin Liu ◽  
Zhaoyue Wang ◽  
Peng Liu ◽  
Zuankai Wang ◽  
Haimin Yao ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Polymer Coatings ◽  
Molecular Engineering ◽  
Organic Liquids ◽  
Molecular Configuration ◽  
Supramolecular Materials ◽  
Siloxane Oligomers ◽  
Damage Healing ◽  
Oil Repellent ◽  
Liquid Repellency

Polymer coatings with a combined competence of strong bonding to diverse substrates, broad liquid repellency, and readily damage healing are in substantial demand in a range of applications. In this work, we develop damage-healable, oil-repellent supramolecular silicone (DOSS) coatings to harvest abovementioned properties by molecular engineering siloxane oligomers that can self-assemble onto coated substrates via multivalent hydrogen bonding. In addition to the readily damage-healing properties provided by reversible association/dissociation of hydrogen bonding motifs, the unique molecular configuration of the siloxane oligomers on coated substrates enables both robust repellency to organic liquids and strong bonding to various substrates including metals, plastics, and even Teflon. We envision that not only DOSS coatings can be applied in a range of energy, environmental, and biomedical applications that require long-term services in harsh environmental conditions but also the design strategy of the oligomers can be adopted in the development of supramolecular materials with desirable multifunctionality.

Investigating the Effects of Different Repellent Agents on the Performance of Novel Polyester/Wool Blended Fabrics

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000 ◽  
Author(s):  
Akbar Khoddami ◽  
Soheil Bazanjani ◽  
R.H. Gong
Keyword(s):  
Mechanical Properties ◽  
Shear Rigidity ◽  
Dry Cleaning ◽  
Before And After ◽  
Low Stress Mechanical Properties ◽  
Finishing Agent ◽  
Fluorocarbon Chain ◽  
And Performance ◽  
Liquid Repellency ◽  
Original Configuration

The effects of fluorocarbon finishing of hollow and solid polyester/wool were studied in order to establish the processing behavior and performance characteristics of the treated fabrics. Polyester/wool blended fabrics before and after dyeing were treated with different fluorochemicals; their liquid repellency after washing and dry cleaning was evaluated. Fabric mechanical properties were compared by measuring tensile strength and low stress mechanical properties. The results indicate that the finishing agent formulation has a great effect on the fabrics repellent properties. Studying the fluorocarbon chain re-orientation during laundering and dry cleaning revealed that each fluorocarbon has different ability to retrieve its original configuration via air drying with subsequent necessity of hot pressing to reach acceptable repellency. Also, the effect of hollow fibers on fabric mechanical properties is practically insignificant. The low stress mechanical properties indicate only relatively small differences among the samples. However, finishing with all chemicals and methods resulted in higher friction between the fibers and yarns, and in increased bending and shear rigidity, and shear hysteresis.

scholarly journals Poly (Dimethylsiloxane) Coating for Repellency of Polar and Non-Polar Liquids

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2423
Author(s):  
Hila Monder ◽  
Leo Bielenki ◽  
Hanna Dodiuk ◽  
Anna Dotan ◽  
Samuel Kenig
Keyword(s):  
Contact Angle ◽  
Empirical Model ◽  
Room Temperature ◽  
Contact Angle Hysteresis ◽  
Dielectric Constants ◽  
Solubility Parameters ◽  
Polar Liquids ◽  
The Difference ◽  
Liquid Repellency ◽  
Pdms Coating

The wettability of poly (dimethylsiloxane) (PDMS) coating on plasma-treated glass was studied at room temperature using polar and non-polar liquids. The wettability was investigated regarding the liquids’ surface tensions (STs), dielectric constants (DCs) and solubility parameters (SPs). For polar liquids, the contact angle (CA) and contact angle hysteresis (CAH) are controlled by the DCs and non-polar liquids by the liquids’ STs. Solubility parameter difference between the PDMS and the liquids demonstrated that non-polar liquids possessed lower CAH. An empirical model that integrates the interfacial properties of liquid/PDMS has been composed. Accordingly, the difference between the SPs of PDMS and the liquid is the decisive factor affecting CAH, followed by the differences in DCs and STs. Moreover, the interaction between the DCs and the SPs is of importance to minimize CAH. It has been concluded that CAH, and not CA, is the decisive attribute for liquid repellency of PDMS coating.

scholarly journals Oil-immersion stable superamphiphobic coatings for long-term super liquid-repellency

2020 ◽  
pp. 127606
Author(s):  
Xuan Jiao ◽  
Meiting Li ◽  
Xinquan Yu ◽  
William S.Y. Wong ◽  
Youfa Zhang
Keyword(s):  
Oil Immersion ◽  
Liquid Repellency
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