Change search
ReferencesLink to record
Permanent link

Direct link
Durability of Superhydrophobic Coatings - Sand Abrasion Test
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The interest in superhydrophobic coatings have increased exponentially in the recentdecades due to their potential and versatility in their applications. The use forsuperhydrophobic surfaces range from water repellent fabric, to self cleaning surfacesand numerous applications in industry. In this project the durability of 6 differentsuperhydrophobic coatings have been examined. The durability was tested bydropping sand on the surfaces from a set hight of 10 cm and a flow of 40 g/min. Thesurfaces were mounted on a 45° angle. The surfaces were abraded for 30 seconds ata time and the static, receding, and advancing contact angles along with the roll-ofangle was measured. Five of the surfaces were built up with nano particles and onewas sand blasted and anodized to create a superhydrophobic structure. The surfacesthat withstood the most abrasion was the surface that had been calcined to improveadhesion and the surface that had been sand blasted and anodized. Measurementsshowed that the roll-off angle and the receding contact angle were the two bestindicators of the deterioration of a surface, while the static contact angle and theadvancing contact angle varied little with abrasion. The project was done at thecompany Technical Research Institute of Sweden (SP) at their chemistry, surfaces andmaterials department in Stockholm. All coatings and equipment was supplied by SP.

Place, publisher, year, edition, pages
2016. , 13 p.
Series
TVE, 16064 juni
Keyword [en]
Superhydrophobic, hydrophobic, contact angle, durability of superhydrphobic coatings, sand abrasion
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-300164OAI: oai:DiVA.org:uu-300164DiVA: diva2:950930
External cooperation
SP, Sveriges Tekniska Forskningsinstitut
Educational program
Master Programme in Engineering Physics
Supervisors
Examiners
Available from: 2016-08-17 Created: 2016-08-03 Last updated: 2016-08-17Bibliographically approved

Open Access in DiVA

fulltext(2127 kB)16 downloads
File information
File name FULLTEXT01.pdfFile size 2127 kBChecksum SHA-512
7abdcb958a144aa8c3d8ef6ff6f6c37bd475f8798c6424da4bffb0c4f36c8e60f5c0d325479f19c3d9fe04d3404b57e84a877660cf5751516f329d2840566496
Type fulltextMimetype application/pdf

Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 16 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 36 hits
ReferencesLink to record
Permanent link

Direct link