Self-cleaning performance of polyvinylidene fluoride-zinc oxide composite coatings for civil and industrial applications

2012 ◽  
pp. EEP12
Author(s):  
Adel Mohamed
Keyword(s):  
Zinc Oxide ◽  
Polyvinylidene Fluoride ◽  
Composite Coatings ◽  
Industrial Applications ◽  
Oxide Composite ◽  
Cleaning Performance ◽  
Self Cleaning

Mechanochemical durability and self-cleaning performance of zinc oxide-epoxy superhydrophobic coating prepared via a facile one-step approach

2021 ◽  
Vol 47 (11) ◽  
pp. 15825-15833
Author(s):  
Suk Wy Yap ◽  
Norhasnidawani Johari ◽  
Saiful Amri Mazlan ◽  
Noor Azlina Hassan
Keyword(s):  
Zinc Oxide ◽  
Superhydrophobic Coating ◽  
Cleaning Performance ◽  
One Step ◽  
Self Cleaning

scholarly journals Preparation and Self-Cleaning Performance of Carbon-Based Superhydrophobic Coatings Based on Non-Fluorine and Non-Toxic Corn Straw

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6401
Author(s):  
Yanbin Wang ◽  
Lihui Kang ◽  
Zhaoxia Li ◽  
Qiong Su ◽  
Shaofeng Pang ◽  
...  
Keyword(s):  
Hierarchical Structures ◽  
Dip Coating ◽  
Industrial Applications ◽  
Raw Material ◽  
Corn Straw ◽  
Water Contact ◽  
Carbon Particles ◽  
Cleaning Performance ◽  
Superhydrophobic Coatings ◽  
Self Cleaning

Recently, superhydrophobic surfaces with self-cleaning ability have attracted broad research interest due to their huge potential in daily lives and industrial applications, but the use of fluorinate, toxic organic compounds, and expensive feedstocks make superhydrophobic materials a great challenge in practical application. In this study, we present a facile dip-coating strategy to prepare superhydrophobic coatings with self-cleaning properties based on a non-fluorine and non-toxic system by using eco-friendly corn straw as raw material. During this process, aromatic carbon particles with rough hierarchical structures were prepared firstly via a simple fast pyrolysis process, followed by modification with polydimethylsiloxane (PDMS) in absolute ethanol solvent to decrease the surface free energy. Research shows these natural straw-derived carbons display a microstructure of several protrusions which is similar to the lotus leave’s and the resulted coatings exhibit an outstanding superhydrophobic property with a static water contact angle (WCA) of 151.67 ± 1.36 degrees. In addition, the as-prepared coatings possessed excellent self-cleaning performance: no contaminations were observed on the surfaces after examining with sludge, calcimine, water, and common liquids such as tea, milk, soybean milk as well as ink, which have a broad range of potential application in the field of antifouling, waterproofing, and anticorrosive.

scholarly journals Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 221
Author(s):  
Mariya Aleksandrova ◽  
Ivailo Pandiev
Keyword(s):  
Composite Coatings ◽  
Electrical Circuit ◽  
Ferroelectric Materials ◽  
Piezoelectric Transducers ◽  
Lead Free ◽  
Electrical Behavior ◽  
Oxide Composite ◽  
Before And After ◽  
Frequency Dependences ◽  
Good Agreement

This paper presents impedance measurements of ferroelectric structures involving lead-free oxide and polymer-oxide composite coatings for sensing and energy harvesting applications. Three different ferroelectric materials grown by conventional microfabrication technologies on solid or flexible substrates are investigated for their basic resonant characteristics. Equivalent electrical circuit models are applied to all cases to explain the electrical behavior of the structures, according to the materials type and thickness. The analytical results show good agreement with the experiments carried out on a basic types of excited thin-film piezoelectric transducers. Additionally, temperature and frequency dependences of the dielectric permittivity and losses are measured for the polymer-oxide composite device in relation with the surface morphology before and after introduction of the polymer to the functional film.

Sepiolite-based superamphiphobic coating with excellent robustness, chemical stability and self-cleaning performance

2021 ◽  
Vol 157 ◽  
pp. 106297
Author(s):  
Beibei Chen ◽  
Zhe Dong ◽  
Yuhan Jia ◽  
Jiaye Li ◽  
Mengjie Zhang ◽  
...  
Keyword(s):  
Chemical Stability ◽  
Cleaning Performance ◽  
Self Cleaning
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