The impact of a silane pigment treatment on the properties of thickness-sensitive spectrally selective paints
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 distributi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Slovenian Chemical Society
2017-12-01
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| Series: | Acta Chimica Slovenica |
| Subjects: | |
| Online Access: | https://journals.matheo.si/index.php/ACSi/article/view/3637 |
| Summary: | 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. |
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| ISSN: | 1318-0207 1580-3155 |