scholarly journals Environmental stimuli-responsive self-repairing waterbased superhydrophobic coatings

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 543-550 ◽  
Author(s):  
Kunlin Chen ◽  
Kun Gu ◽  
Siyu Qiang ◽  
Chaoxia Wang
Keyword(s):  
Mechanical Damage ◽  
Superhydrophobic Coating ◽  
Stimuli Responsive ◽  
Environmental Stimuli ◽  
Superhydrophobic Coatings

A waterbased self-repairing superhydrophobic coating shows a self-repairing ability after mechanical damage or contamination with organics, and thus long-term outdoor durability.

Facile preparation of self-healing waterborne superhydrophobic coatings based on fluoroalkyl silane-loaded microcapsules

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 53949-53954 ◽  
Author(s):  
Qingqing Rao ◽  
Kunlin Chen ◽  
Chaoxia Wang
Keyword(s):  
Mechanical Damage ◽  
Titania Nanoparticles ◽  
Self Healing ◽  
Superhydrophobic Coating ◽  
Superhydrophobic Coatings ◽  
Facile Preparation

A self-healing waterborne superhydrophobic coating comprising polysiloxane latex, microcapsules, fluorinated silica and photocatalytic titania nanoparticles shows self-repairing ability after mechanical damage or oily contaminations.

Large-scale fabrication of durable and self-healing super-hydrophobic coating with high thermal stability and long-term corrosion resistance

Nanoscale ◽  
2021 ◽  
Author(s):  
Dawei Li ◽  
Liangji Ma ◽  
Bo Zhang ◽  
Chen Shaohua
Keyword(s):  
Thermal Stability ◽  
Large Scale ◽  
High Thermal Stability ◽  
Self Healing ◽  
Superhydrophobic Coating ◽  
Hydrophobic Coating ◽  
Superhydrophobic Coatings ◽  
Crucial Feature ◽  
Cheap Method

Durability is a crucial feature to expand the application field of artificial superhydrophobic coatings. Herein, a kind of durable superhydrophobic coating is prepared by a simple and cheap method using...

Facile Fabrication of a Mechanical, Chemical, Thermal, and Long‐Term Outdoor Durable Fluorine‐Free Superhydrophobic Coating

2021 ◽  
pp. 2002209
Author(s):  
Xinyu Tan ◽  
Yunkuan Wang ◽  
Zhengtao Huang ◽  
Sydney Sabin ◽  
Ting Xiao ◽  
...  
Keyword(s):  
Superhydrophobic Coating ◽  
Facile Fabrication

Biomimetic Optical Cellulose Nanocrystal Films with Controllable Iridescent Color and Environmental Stimuli-Responsive Chromism

2018 ◽  
Vol 10 (6) ◽  
pp. 5805-5811 ◽  
Author(s):  
Yao-Dong He ◽  
Ze-Lian Zhang ◽  
Juan Xue ◽  
Xiao-Hui Wang ◽  
Fei Song ◽  
...  
Keyword(s):  
Cellulose Nanocrystal ◽  
Stimuli Responsive ◽  
Environmental Stimuli ◽  
Nanocrystal Films

scholarly journals Dragonfly Inspired Smart Soft Robot

2020 ◽  
Author(s):  
Vardhman Kumar ◽  
Ung Hyun Ko ◽  
Yilong Zhou ◽  
Jiaul Hoque ◽  
Gaurav Arya ◽  
...  
Keyword(s):  
Environmental Remediation ◽  
Stimuli Responsive ◽  
Complex Environments ◽  
Soft Robots ◽  
Responsive Materials ◽  
Environmental Perturbations ◽  
Integration Strategies ◽  
Soft Actuators ◽  
Harsh Conditions

Recent advancements in soft robotics have led to the development of compliant robots that can exhibit complex motions driven by living cells(1, 2), chemical reactions(3), or electronics(4). Further innovations are however needed to create the next generation of soft robots that can carry out advanced functions beyond locomotion. Here we describe DraBot—a dragonfly-inspired, entirely soft, multifunctional robot that combines long-term locomotion over water surface with sensing, responding, and adaptation capabilities. By integrating soft actuators, stimuli-responsive materials, and microarchitectural features, we created a circuitry of pneumatic and microfluidic logic that enabled the robot to undergo user- and environment-controlled (pH) locomotion, including navigating hazardous (acidic) conditions. DraBot was also engineered to sense additional environmental perturbations (temperature) and detect and clean up chemicals (oil). The design, fabrication, and integration strategies demonstrated here pave a way for developing futuristic soft robots that can acclimatize and adapt to harsh conditions while carrying out complex tasks such as exploration, environmental remediation, and health care in complex environments.

Laboratory and Field Investigations of the Performance of HPCC Coatings

2004 ◽  
Author(s):  
Fraser King ◽  
Jenny Been ◽  
Robert Worthingham ◽  
Grant Rubie
Keyword(s):  
Laboratory Testing ◽  
High Performance ◽  
Impact Damage ◽  
Mechanical Damage ◽  
Degradation Process ◽  
Field Trials ◽  
Hot Water ◽  
Corrosion Properties ◽  
Field Exposure

Three-layer FBE-polyolefin coatings offer the promise of good adhesive and corrosion properties from the FBE layer coupled with resistance to mechanical damage from the outer polyolefin layer. TransCanada Pipelines have been investigating the long-term behaviour of High Performance Composite Coating (HPCC) using a combination of laboratory testing and field trials. In the laboratory, panels of HPCC were subjected to standard CD disbondment testing following a two-stage degradation process. The degradation process, designed to simulate field exposure, involved impact damage followed by exposure to either a hot-water soak (60°C), or to microbiologically active soil with and without the application of CP. Following exposure, the duplicate panels were subject to 28-day CD disbondment tests to determine the extent of damage caused by the combination of impact and soil/hot water exposure. In the field, a section of HPCC coating was excavated and examined after 11 years service. In addition to visual inspection, the coating was examined in situ using a newly developed impedance technique EISPlus. This technique is a development of earlier EIS techniques and allows the dielectric properties of the coating to be determined in addition to the impedance of the solution-filled pores. EISPlus provides an improved sensitivity for high-impedance coatings, such as FBE, HPCC, and polyolefin tape. Furthermore, since it is a dry technique, rapid measurements can be made on coatings exposed to field conditions allowing the in-service performance to be determined. Results of both the laboratory testing and field EISPlus measurements are presented and the long-term performance of the coating discussed.

Fabrication of transparent, durable and self-cleaning superhydrophobic coatings for solar cells

2020 ◽  
Vol 44 (34) ◽  
pp. 14481-14489
Author(s):  
Zihui Liang ◽  
Zezhu Zhou ◽  
Li Zhao ◽  
Binghai Dong ◽  
Shimin Wang
Keyword(s):  
Thermal Stability ◽  
Corrosion Resistance ◽  
Solar Cells ◽  
Strong Acid ◽  
Adhesive Force ◽  
Superhydrophobic Coating ◽  
Acid Base ◽  
Excellent Thermal Stability ◽  
High Transparency ◽  
Superhydrophobic Coatings

A superhydrophobic coating with high transparency and ultrahigh adhesive force is prepared for application on the glass covers of solar cells, which also exhibits excellent thermal stability and strong acid–base corrosion resistance.

Bioinspired hierarchically hairy particles for robust superhydrophobic coatings via a droplet dynamic template method

2019 ◽  
Vol 10 (3) ◽  
pp. 331-335 ◽  
Author(s):  
Dongmei Lv ◽  
Li Sheng ◽  
Jiping Wan ◽  
Jianwei Dong ◽  
Hongsheng Ouyang ◽  
...  
Keyword(s):  
Template Method ◽  
Superhydrophobic Coating ◽  
Superhydrophobic Coatings ◽  
Dynamic Template

Bioinspired hierarchically hairy particles are prepared by using initiator droplets as dynamic templates to achieve a robust superhydrophobic coating.

scholarly journals Superhydrophobic Coatings as Anti-Icing Systems for Small Aircraft

Aerospace ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 2 ◽  
Author(s):  
Filomena Piscitelli ◽  
Antonio Chiariello ◽  
Dariusz Dabkowski ◽  
Gianluca Corraro ◽  
Francesco Marra ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Work Of Adhesion ◽  
Ice Formation ◽  
Superhydrophobic Coating ◽  
Additional Energy ◽  
Water Contact ◽  
Superhydrophobic Coatings ◽  
Promising Solution ◽  
Reference Samples ◽  
Small Aircraft

Traditional anti-icing/de-icing systems, i.e., thermal and pneumatic, in most cases require a power consumption not always allowable in small aircraft. Therefore, the use of passive systems, able to delay the ice formation, or reduce the ice adhesion strength once formed, with no additional energy consumption, can be considered as the most promising solution to solve the problem of the ice formation, most of all, for small aircraft. In some cases, the combination of a traditional icing protection system (electrical, pneumatic, and thermal) and the passive coatings can be considered as a strategic instrument to reduce the energy consumption. The effort of the present work was to develop a superhydrophobic coating, able to reduce the surface free energy (SFE) and the work of adhesion (WA) of substrates, by a simplified and non-expensive method. The developed coating, applied as a common paint with an aerograph, is able to reduce the SFE of substrates by 99% and the WA by 94%. The effects of both chemistry and surface morphology on the wettability of surfaces were also studied. In the reference samples, the higher the roughness, the lower the SFE and the WA. In coated samples with roughness ranging from 0.4 and 3 µm no relevant variations in water contact angle, nor in SFE and WA were observed.

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