Silicone-based thickness insensitive spectrally selective (TISS) paints as selective paint coatings for coloured solar absorbers (Part I)

The objective of this study was to make paints having a variety of colours and whose spectral selectivity would be independent of the thickness of the deposited layer of paint (thickness insensitive spectrally selective (TISS) paint coatings). TISS paint coatings combine the advantages of paints (longevity and chemical resistance achieved by a high thickness of the applied layer, variety of colours and simple application) with spectral selectivity. Low emittance is attained by the addition of bare aluminium, coloured aluminium flake pigments or copper flake pigments, while other inorganic pigments impart various colours to the paints. Pigments were dispersed in silicone resin binder imparting the TISS paint coatings high-temperature tolerance, excellent adhesion, uv resistance, flexibility and weather-durability, which make them suitable coatings for coloured glazed or unglazed solar absorbers.

[1]  Y. Tripanagnostopoulos,et al.  Solar collectors with colored absorbers , 2000 .

[2]  Spectral selectivity of black and green painted surfaces , 2000 .

[3]  C. Granqvist,et al.  Materials science for solar energy conversion systems , 1991 .

[4]  Stanley W. Moore.  Progress On Solar Absorber Selective Paint Research , 1984, Optics & Photonics.

[5]  Thomas A. Germer,et al.  Modeling the appearance of special effect pigment coatings , 2001, Optics + Photonics.

[6]  J. Scartezzini,et al.  Thin film multilayer design types for colored glazed thermal solar collectors , 2005 .

[7]  Frank N. Jones,et al.  Organic Coatings: Science and Technology , 1992 .

[8]  Z. Crnjak Orel,et al.  Spectrally selective solar absorbers in different non-black colours , 2004 .

[9]  F. Billmeyer,et al.  Principles of color technology , 1967 .

[10]  E. Marx,et al.  Optical reflectance of metallic coatings: Effect of aluminum flake orientation , 2002 .

[11]  A. Roos.  Optical Properties and Measurements , 2004 .

[12]  M. Kunaver,et al.  Infrared Reflection—Absorption Spectra of Metal-Effect Coatings , 2003, Applied spectroscopy.

[13]  H. Akbari,et al.  Solar spectral optical properties of pigments—Part II: survey of common colorants , 2004 .

[14]  H. Akbari,et al.  Solar spectral optical properties of pigments. Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements , 2005 .

[15]  P. Zimmer,et al.  Low cost coatings for flat plate solar collectors , 1976 .

[16]  G. D. Parfitt.  Dispersion of Powders in Liquids , 1971 .

[17]  M. Köhl,et al.  Performance and durability assessment : optical materials for solar thermal systems , 2004 .

[18]  C. Granqvist,et al.  SELECTIVELY SOLAR-ABSORBING SURFACE COATINGS: OPTICAL PROPERTIES AND DEGRADATION , 1991 .

[19]  Hans G. Völz,et al.  Industrial Color Testing , 2001 .

[20]  S. W. Moore.  Solar absorber selective paint research , 1985 .