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Submitted by :

Gke BOZOKALFA

Nanotechnology & NanomedicineDepartment


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Nanotechnology areasNanoparticles/materialsEasy to clean surfacesSelf cleaning & self healing

Nanoparticles for coatingSynthesis of available nanomaterialsTiO2 & Nano TiO2

Nano in coating challengesExpectation for nanotechnology in coatings


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Engineering

Materials

Biotechnology

Electronics

http://nanotechnologyinourlife.pbworks.com/28/11/2010


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Metals

Ceramics

Polymers

Biomolecular materials

http://www.tech-ceramics.co.uk/OPCP.htmhttp://bmmb-lab.com/contacts.asp


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Nanoparticles

e.g. UV absorber insun screens

NanostructuredMaterials

e.g. mortars andconcrete

NanostructuredSurfaces

e.g. lotus leaf

[1] [1] [1]


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Nano-sizing Causes Changes In:

Color Crystal shape

Melting Points Conductivity

Magnetism Chemical Reactivity

Potential Uses of Nanomaterials/DevicesSun Screen Softer Ceramics

Harder Metals Water Purification

Catalysts

Air Purification

Self-Cleaning Windows & Paints


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Inorganics

Colloidal Silica

Fumed SilicaSicates

Titania

Alumina

Zinc Oxide

Organics

Acrylics

Urethanes


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OtherOther

methodsmethods

Solgel;Solgel;


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TiO2 coated polypropylene

fiber [Cireli et. al. 2006]

Sol-Gel technology is aninexpensive alternative tovacuum processing,

in which a sol is appliedto the surface in theform of a varnish

using conventionalprocedures, such as e.g. dipping, spraying / spinning

and a gel coating isformed


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[7 , 8]


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[4]


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Photocatalytic TPhotocatalytic TiiOO22

NanoparticlesNanoparticles & Coating& Coating

ApplicationsApplicationsSuper hydrophilicitySuper hydrophilicity

Anti-fogging activityAnti-fogging activity

Antibacterial actvivityAntibacterial actvivity

Self cleaning surfaceSelf cleaning surface

Self healing forSelf healing for

corrosion protectioncorrosion protection


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two-stage process:photocatalytic (light-

activated)

hydrophilic (water-loving)


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[9]


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Titania nanoparticles have unique

properties for coating applications

To further improve the risk management

of products we intensively participate in

the safety research for nanoparticles

and nanomaterials


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8. E. Matijevi, M. Budnik, J. Colloid Interface Sci. 61; (1977); 302

9. E.A Borringer, H.K Bowen, Commun. Am. Ceram Soc. (1982); 199-201

10. Dr. James S. Murday, Status Report on National NanotechnologyInitiatives, Naval Research Lab, National Nanotechnology CoordinationOffice

11. TEXTOR, T., BAHNERS, T., SCHOLLMEYER, E., 2003. Modern Approachesfor Intelligent Surface Modification. Journal of Industrial Textiles,32(4):279-


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