PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

Sherwin-Williams


Coatings Industry News

Main News Page


UK Team Develops ‘Green’ Hydrophobic Coating

Friday, June 16, 2017

Comment | More

Scientists at a U.K. university say they’ve developed a “green” alternative to current hydrophobic and hydrophilic materials used in antifouling and waterproofing applications.

The team, working out of the Energy Safety Research Institute at Swansea University in Wales, says it’s developed a spray-coated nanomaterial that provides texture to a substrate and can be tailored to provide superhydrophobicity or superhydrophilicity. Superhydrophobic materials are used to repel water and create “self-cleaning” surfaces in some applications; superhydrophilic materials have been proposed for antifogging and antifouling in some cases.

Superhydrophobicity
Shirin Alexander/University of Swansea

The Swansea team says it’s developed a spray-coated nanomaterial that provides texture to a substrate and can be tailored to provide superhydrophobicity or superhydrophilicity.

The basis of the Swansea approach is aluminum oxide nanoparticles. The researchers, led by faculty members Shirin Alexander and Andrew Barron, explored methods of manipulating, or “tuning,” the surface properties of the nanoparticles using hydrocarbons—different types of carboxylic acids.

Different Acids, Different Properties

The research team found that by modifying the nanoparticles with carboxylic acids of various chain lengths and surface energies, they could tune the particles’ hydrophobicity and create coatings that exhibited properties anywhere from superhydrophobic to superhydrophilic.

The scientists say in both cases, the nanocoating exhibited roughness, which can enforce both superhydrophobicity and superhydrophilicity. But nanoparticles with the methoxy functionality exhibit high surface energy, making the coating superhydrophilic, where nanoparticles modified with branched hydrocarbon chains have lower surface energy, and repel water with their branched, spiky chains.

The team sees the hydrocarbon-modified nanoparticles as a potential replacement for fluorocarbons used for superhydrophobicity; the hydrocarbon materials could be less expensive and friendlier to the environment, they say.

In addition to Alexander and Barron, research was conducted by graduate student Wafaa Al-Shatty and research fellow Alex Lord.

The full paper can be read in the open-source ACS Omega journal online.

   

Tagged categories: Colleges and Universities; hydrophobic coatings; Nano and hybrid coatings; Nanotechnology; Research; Research and development

Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Jotun Paints Inc.
 
Jotun Jotachar 1709
 
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.
 

 
Carboline Company
 
New product: Carbozinc® 608 HB
 
Introducing a new high build zinc-rich primer that can save you time and money by eliminating the epoxy intermediate coat!
 

 
Tarps manufacturing, Inc.
 
QUALITY MADE IN AMERICA —Available near you!
 
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.
 

 
SEMicro Division, M.E. Taylor Engineering, Inc.
 
Coatings Adhesion Testers
 
The PATTI® accurately measures the bond strength between coating & substrate. Outfitted properly, the surface can be rough, porous, or curved & >10K psi strong!
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
HoldTight Solutions Inc.
 
NO FLASH RUST - NO CONTAMINANTS
 
Our HoldTight®102 salt remover & flash rust
preventer prevents flash
rust by removing surface contaminants. Contact us
for your nearest distributor.
(800) 319.8802 sales@holdtight.com
 

 
Mitsubishi Gas Chemical America
 
Performance Amine 1,3-BAC
 
A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.
 

 
CHLOR*RID International Inc.
 
SOLUTIONS THAT WORK
 
Companies that invest in corrosion control use CHLOR RID products
  • Soluble salt removal liquid
  • Test kits to verify contamination levels
  • Surface passivation to hold the blast
INFO@CHLOR-RID.COM 800.422.3217
 

 
Sauereisen, Inc.
 
SewerGard® 210XHB
 
• 300 mils in a single coat by plural component equipment
• Fast Setting
• 100% Solids Epoxy
• Chemical-resistant barrier for municipal wastewater environments
sauereisen.com
 

 
Graco Inc.
 
Graco EcoQuip 2: Experience the Difference
 
While others claim their equipment is the same, none of them compare to Graco’s EcoQuip 2™ Vapor Abrasive® blasting line. Visit graco.com/ecoquip to learn more.
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy (Updated 1/8/2018)   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us