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The effect of surface oxidation and titanium dioxide on exterior PVC color retention
Author(s) -
Birmingham J. N.
Publication year - 1995
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.730010208.n
Subject(s) - titanium dioxide , materials science , opacity , pigment , titanium , color difference , chemical engineering , fade , composite material , optics , chemistry , metallurgy , organic chemistry , computer science , physics , filter (signal processing) , computer vision , engineering , operating system
Titanium dioxide is widely used as a cost‐effective UV radiation protector for exterior PVC applications, particularly vinyl building products. As the exterior surface weathers by oxidation, an increasing number of pigment‐air interfaces are formed, resulting in increased light scattering. This increased light scattering is often mistakenly described as color fade. Results are shown to clearly measure the difference between this titanium dioxide opacity effect versus color pigment fade. The effect of several chemicals on surface color restoration and long‐term color retention is explored.