Surface properties of recycled titanium oxide recovered from paint waste

Karlsson, Mikael,1978Chalmers University of Technology, Sweden,Chalmers tekniska högskola (författare)

Funding details: P37547-1, VINNOVA; Funding text: The authors acknowledge thefinancial support from Swedish Governmental Agency for Innovation Systems (grant number: P37547-1 )
Aluminium oxide coated rutile pigment was extracted from a paint matrix by means of a thermal recycling process. The objective was to investigate the effect of the recycling process on the surface properties of the pigment. The pigment was analysed using powder x-ray diffraction (XRD), surface area measurements (BET), laser diffraction for particle size analysis and X-ray photoelectron spectroscopy (XPS) before and after the recycling process. Investigations on the zeta potential and the surface charge were performed as well. It was concluded that the rutile crystalline core and the aluminium oxide coating of the pigment were still intact after the recycling process. The particle size distribution of the recycled pigment was slightly broader compared to the virgin pigment. The measured magnitude in zeta potential of the recycled pigment was lower than for the virgin pigment. This difference is thought to be caused by alteration in the surface hydroxyl concentration. Surface charge titrations showed differences between the virgin and the recycled pigment at alkaline pH and at low salt concentrations.

NATURVETENSKAP Kemi Oorganisk kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Inorganic Chemistry hsv//eng
TEKNIK OCH TEKNOLOGIER Materialteknik Bearbetnings-, yt- och fogningsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Manufacturing, Surface and Joining Technology hsv//eng
NATURVETENSKAP Kemi Materialkemi hsv//swe
NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Andra medicinska och farmaceutiska grundvetenskaper hsv//swe
MEDICAL AND HEALTH SCIENCES Basic Medicine Other Basic Medicine hsv//eng
NATURVETENSKAP Kemi Fysikalisk kemi hsv//swe
NATURAL SCIENCES Chemical Sciences Physical Chemistry hsv//eng
Paint
Pigment
Recycling
Surface charge
Titanium oxide
Zeta potential
Alkalinity
Alumina
Aluminum oxide
Oxide minerals
Particle size
Particle size analysis
Pigments
Protective coatings
Surface properties
Titanium dioxide
Titanium oxides
X ray photoelectron spectroscopy
Crystalline core
Laser diffractions
Low salt concentration
Powder X ray diffraction
Recycling process
Surface area measurement
Surface hydroxyl concentration
Thermal recycling
Paint
Pigment
Recycling
Surface charge
Titanium oxide
Zeta potential

Abbas, Zareen,1962Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg, Sweden(Swepub:gu)xabbza (författare)
Bordes, Romain,1981Chalmers University of Technology, Sweden,Chalmers tekniska högskola(Swepub:cth)bordes (författare)
Cao, Yu,1969Chalmers University of Technology, Sweden,Chalmers tekniska högskola(Swepub:cth)yucao (författare)
Larsson, AndersRISE,Yta, process och formulering,RISE Research Institutes of Sweden (författare)
Rolland, AntoninChalmers University of Technology, Sweden,Chalmers tekniska högskola (författare)
Taylor, PhilAkzoNobel Decorative Paints, UK (författare)
Steenari, Britt-Marie,1953Chalmers University of Technology, Sweden,Chalmers tekniska högskola(Swepub:cth)bms (författare)
Chalmers University of Technology, SwedenChalmers tekniska högskola (creator_code:org_t)

Ingår i:Progress in organic coatings: Elsevier BV125, s. 279-2860300-94401873-331X

Av författaren/redakt...: Karlsson, Mikael ...; Abbas, Zareen, 1 ...; Bordes, Romain, ...; Cao, Yu, 1969; Larsson, Anders; Rolland, Antonin; visa fler...; Taylor, Phil; Steenari, Britt- ...; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Bearbetnings yt ...

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Medicinska och f ...; och Andra medicinska ...

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