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Glucoside/(UV absorber) mixtures as photostabilizers for rigid PVC
Author(s) -
Rabie S.T.,
Nada A.A.
Publication year - 2008
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.20143
Subject(s) - mercury vapor lamp , glucoside , chemistry , materials science , irradiation , polymer chemistry , chemical engineering , nuclear chemistry , photochemistry , organic chemistry , optoelectronics , physics , medicine , alternative medicine , pathology , nuclear physics , engineering
Mixtures of the UV absorbers (UVAs) 4‐hydroxybenxophenone, 2,4‐dihydroxybenzophenone, and phenyl salicylate with their corresponding glucosides were used as photostabilizers for rigid PVC under irradiation by a high‐pressure mercury lamp. The mixtures exhibited stabilizing effects that were strong and synergistic, as revealed by increased induction times for HCI evolution, decreased rates of dehydrochlorination, decreased weight losses, and reduced extents of discoloration. Maximum synergism was obtained by using a glucoside/UVA weight ratio of 50/50, but all weight ratios studied gave better stabilization than either the UVAs or the glucosides used alone. J. VINYL ADDIT. TECHNOL., 2008. © 2008 Society of Plastics Engineers.