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Light stabilization of polymers using opaque pigments
Author(s) -
Andrady Anthony L.,
Shultz Allan R.
Publication year - 1987
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1987.070330426
Subject(s) - opacity , pigment , dispersity , radius , materials science , ultraviolet light , ultraviolet , optics , light scattering , particle size , particle (ecology) , polymer , chemistry , polymer chemistry , physics , composite material , optoelectronics , scattering , computer security , organic chemistry , oceanography , computer science , geology
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.