Work

The Impact of a Silane Pigment Treatment on the Properties of Thickness-sensitive Spectrally Selective Paints

Year: 2017

Type: article

Abstract: Thickness-sensitive, spectrally selective paints based on a silane treatment of pigments were prepared with different pigment-volume concentrations. The critical pigment-volume concentration was determined by means of electrochemical impedance spectroscopy, while the pigment particle size distribution was determined with ultrasound spectroscopy. The selectivity versus thickness relation of a paint with a near-critical pigment-volume concentration was studied spectroscopically through performance criteria. Its nonlinearity was shown to be related to the surface topography. This relation was further supported by hydrophobicity measurements. Heat-gathering tests in a simulated solar collector supported the spectroscopic determination of an optimal dry-film thickness.

Source: Acta chimica slovenica

DOI: 10.17344/acsi.2017.3637

Authors: Miha Steinbücher, Peter Venturini, Jože Hafner, Matevž Zupančič, Peter Gregorčič, Iztok Golobič

Institutions: Helios (Slovenia), Slovenian National Building and Civil Engineering Institute, University of Ljubljana

Language: English

Topic: Pigment Synthesis and Properties

Subfield: Inorganic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: diamond

Funders: European Commission, Javna Agencija za Raziskovalno Dejavnost RS, European Regional Development Fund

Awards: Optodynamics, Heat and Mass Transfer