Light stabilization of polymers using opaque pigments

The ultraviolet light screening characteristics of monodisperse and polydisperse opaque spherical pigment particles are examined in the nonreflection limit. The screening capability for polydisperse particle size distributions is most uniquely described in terms of the area‐average radius. The light...

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Veröffentlicht in:	Journal of applied polymer science 1987-03, Vol.33 (4), p.1389-1395
Hauptverfasser:	Andrady, Anthony L., Shultz, Allan R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Compounding ingredients Exact sciences and technology Polymer industry, paints, wood Stabilizers (antioxydants, antiozonants, etc.) Technology of polymers
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Beschreibung
Zusammenfassung:	The ultraviolet light screening characteristics of monodisperse and polydisperse opaque spherical pigment particles are examined in the nonreflection limit. The screening capability for polydisperse particle size distributions is most uniquely described in terms of the area‐average radius. The light screening is related to the pigment's area‐average radius and volume fraction loading. Light intensity as a function of depth is stated for systems containing an opaque pigment and a soluble UV light absorber.
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.1987.070330426