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Photodegradation of nylon 66. I. Phototendering by TiO 2
Author(s) -
Taylor H. A.,
Tincher W. C.,
Hamner W. F.
Publication year - 1970
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.1970.070140114
Subject(s) - photodegradation , phosphorescence , photochemistry , materials science , reaction mechanism , nylon 6 , activation energy , wavelength , chemical engineering , chemistry , photocatalysis , polymer , optics , catalysis , organic chemistry , composite material , fluorescence , optoelectronics , physics , engineering
The mechanism by which TiO 2 exerts a phototendering effect on nylon 66 photodegradation has not been previously explained. To aid in the elucidation of this mechanism, the wavelength dependence curves of photodegradation of nylon 66 both with and without TiO 2 have been accurately determined. These data, in conjunction with reflectance and phosphorescence measurements, indicate that the phototendering effect of TiO 2 proceeds by a chemical rather than an energy transfer mechanism.