Inorganic adhesives for robust, self-healing, superhydrophobic surfaces

2017 ◽  
Vol 5 (36) ◽  
pp. 19297-19305 ◽  
Author(s):  
Mingming Liu ◽  
Yuanyuan Hou ◽  
Jing Li ◽  
Lu Tie ◽  
Yubing Peng ◽  
...  
Keyword(s):  
Water Treatment ◽  
Plasma Etching ◽  
Boiling Water ◽  
Superhydrophobic Surfaces ◽  
Self Healing ◽  
Harsh Conditions

Inorganic adhesives are presented to construct robust, self-healing, superhydrophobic surfaces. The surfaces maintain superhydrophobicity after physical abrasion, and still show excellent mechanical robustness after treatment under harsh conditions. They also have a rapid self-healing ability against boiling-water treatment, O2-plasma etching, and amphiphilic pollution.

Stretchable dual cross-linked silicon elastomer with superhydrophobic surface and fast triple self-healing ability at room temperature

Soft Matter ◽  
2021 ◽  
Author(s):  
Yuxing Shan ◽  
shuai liang ◽  
Xiangkai Mao ◽  
Jie Lu ◽  
Lili Liu ◽  
...  
Keyword(s):  
Superhydrophobic Surface ◽  
Room Temperature ◽  
Superhydrophobic Surfaces ◽  
Self Healing ◽  
Wearable Electronics ◽  
Actual Application ◽  
Potential Applications

Abstract. Stretchable elastomers with superhydrophobic surfaces have potential applications in wearable electronics. However, various types of damage inevitably occur on these elastomers in actual application, resulting in deterioration of the...

scholarly journals Nanotextured Shrink Wrap Superhydrophobic Surfaces by Argon Plasma Etching

Materials ◽  
2016 ◽  
Vol 9 (3) ◽  
pp. 196 ◽  
Author(s):  
Jolie Nokes ◽  
Himanshu Sharma ◽  
Roger Tu ◽  
Monica Kim ◽  
Michael Chu ◽  
...  
Keyword(s):  
Plasma Etching ◽  
Argon Plasma ◽  
Superhydrophobic Surfaces

An Easy Approach for Obtaining Superhydrophobic Surfaces and their Applications

2019 ◽  
Vol 813 ◽  
pp. 37-42
Author(s):  
Amani Khaskhoussi ◽  
Luigi Calabrese ◽  
Edoardo Proverbio
Keyword(s):  
Surface Morphology ◽  
Large Scale ◽  
Adhesion Force ◽  
Industrial Applications ◽  
Contact Angles ◽  
Boiling Water ◽  
Superhydrophobic Surfaces ◽  
Acid Mixture ◽  
Short Term Treatment ◽  
Water Contact

Three different methods were used to obtain nature-inspired superhydrophobic surfaces on aluminum alloys: short-term treatment with boiling water, HF/HCl and HNO3/HCl concentrated solution etching. Afterwards a thin octadecylsilane film was deposited on all pre-treated surfaces. The surface morphology analysis showed that each method allow to obtain a specific dual nano/micro-structure. The corresponding water contact angles ranged from 160° to nearly 180°. The adhesion force between the water droplets and superhydrophobic surfaces were evaluated. The specimen etched with HF/HCl acid mixture solution showed the lowest adhesion. However, the boiling water treatment sample was characterized by the highest adhesion. Furthermore, the relationship between hydrophobic behavior and surface morphology was discussed compressively. In addition, the electrochemical measurements show that the different superhydrophobic surfaces have an excellent anti-corrosion performance evidencing promising results suitable to obtain large-scale nature-inspired superhydrophobic surfaces for several industrial applications.

Effect of boiling water treatment on hardseededness and germination in some Stylosanthes species

1987 ◽  
Vol 27 (6) ◽  
pp. 857 ◽  
Author(s):  
JG McIvor ◽  
CJ Gardener
Keyword(s):  
Water Treatment ◽  
Seed Treatment ◽  
Small Sample ◽  
Boiling Water ◽  
Hard Seed ◽  
Prior Testing ◽  
Commercial Seed ◽  
Complete Breakdown

Levels of hardseededness in commercial seed lots of Stylosanthes species were determined. Levels varied from 0 to 98%, but there were substantial proportions of hard seed in some seed lots of all species. Median values were 40, 55, 63 and 72% for S. guianensis, S. hamata, S. scabra and S. humilis, respectively. Immersion of seed pods in boiling water for 1 min resulted in almost complete breakdown of hardseededness in all species. In S. hamata this generally resulted in reasonable germination, but in S. guianensis, S. scabra and S. humilis it was accompanied by death of many seeds. Longer periods of immersion killed an increasing proportion of seed. Treatment in boiling water could be used to reduce hard-seed levels in S. hamata (but not other species) but prior testing of a small sample would be necessary as many seeds were killed in 1 S. hamata seed lot (of 7 tested).

scholarly journals Self-Healing of Concrete Cracks by Ceramsite-Loaded Microorganisms

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Jing Xu ◽  
Xianzhi Wang ◽  
Junqing Zuo ◽  
Xiaoyan Liu
Keyword(s):  
Heat Treatment ◽  
Compressive Strength ◽  
Heating Temperature ◽  
Concrete Strength ◽  
The Self ◽  
Self Healing ◽  
Healing Efficiency ◽  
Maximum Crack ◽  
Harsh Conditions ◽  
Urea Decomposition

Protective carrier is essential for the self-healing of concrete cracks by microbially induced CaCO3 precipitation, owing to the harsh conditions in concrete. In this paper, porous ceramsite particles are used as microbial carrier. Heat treatment and NaOH soaking are first employed to improve the loading content of the ceramsite. The viability of bacterial spores is assessed by urea decomposition measurements. Then, the self-healing efficiency of concrete cracks by spores is evaluated by a series of tests including compressive strength regain, water uptake, and visual inspection of cracks. Results indicate that heat treatment can improve the loading content of ceramsite while not leading to a reduction of concrete strength by the ceramsite addition. The optimal heating temperature is 750°C. Ceramsite particles act as a shelter and protect spores from high-pH environment in concrete. When nutrients and spores are incorporated in ceramsite particles at the same time, nutrients are well accessible to the cells. The regain ratio of the compressive strength increases over 20%, and the water absorption ratio decreases about 30% compared with the control. The healing ratio of cracks reaches 86%, and the maximum crack width healed is near 0.3 mm.

Designing Self-Healing Superhydrophobic Surfaces with Exceptional Mechanical Durability

2017 ◽  
Vol 9 (12) ◽  
pp. 11212-11223 ◽  
Author(s):  
Kevin Golovin ◽  
Mathew Boban ◽  
Joseph M. Mabry ◽  
Anish Tuteja
Keyword(s):  
Superhydrophobic Surfaces ◽  
Self Healing ◽  
Mechanical Durability

Effects of Various Additives during Hot Water Treatment on the Formation of Alumina Thin Films for Superhydrophobic Surfaces

2008 ◽  
Vol 22 (3-4) ◽  
pp. 387-394 ◽  
Author(s):  
Kiyoharu Tadanaga ◽  
Naoko Yamaguchi ◽  
Atsunori Matsuda ◽  
Tsutomu Minami ◽  
Masahiro Tatsumisago
Keyword(s):  
Thin Films ◽  
Water Treatment ◽  
Hot Water ◽  
Superhydrophobic Surfaces ◽  
Hot Water Treatment

Fabrication of Self-Healable, Robust Superhydrophobic Surfaces Using UV-Crosslinked Nanocomposite Films

2021 ◽  
Vol 21 (12) ◽  
pp. 6212-6216
Author(s):  
Yeon-Ah Park ◽  
Young-Geun Ha
Keyword(s):  
Low Cost ◽  
Synergetic Effect ◽  
Spray Coating ◽  
Uv Curing ◽  
Industrial Applications ◽  
Contact Angles ◽  
Superhydrophobic Surfaces ◽  
Nanocomposite Films ◽  
Self Healing ◽  
Water Contact

Studies on fabricating robust superhydrophobic surfaces by a low-cost method have been rare, despite the recent demand for nature-inspired superhydrophobic surfaces including self-healing ability in various industrial applications. Herein, we propose a fabrication method for self-healable, robust superhydrophobic nanocomposite films by facile solution-processed spray coating and UV curing. The components of the coating solution include functionalized hydrophobic silica nanoparticles for producing high roughness hierarchical textured structures with low surface energy, and UV-crosslinkable v-POSS and bi-thiol hydrocarbon molecules to improve the film stability. As a result of the synergetic effect of the hydrophobic nanoparticles and UV-crosslinked polymeric compounds, the spray-coated and UV-cured nanocomposite films possess excellent superhydrophobicity (water contact angles > 150º) and high stability, in addition to self-healing abilities.

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