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New thermal antioxidants for polyethylene containing carbon black
Author(s) -
Hawkins W. L.,
Lanza V. L.,
Loeffler B. B.,
Matreyek W.,
Winslow F. H.
Publication year - 1959
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.1959.070010108
Subject(s) - carbon black , polyethylene , chemistry , thio , carbon fibers , amine gas treating , organic chemistry , thioether , sulfur , polymer , polymer chemistry , materials science , natural rubber , composite number , composite material
Common secondary aromatic amine and alkylated phenolic antioxidants lose much of their activity in polyethylene containing carbon black. In contrast their thioether derivatives provide more protection against oxidation than the sum of the separate contributions of carbon black and the sulfur compounds. Organic disulfides and some thio‐ethers without amino or phenolic hydrogen also safeguard polyethylene from oxidation but only in the presence of carbon black. Likewise thiols are excellent protectants in combination with carbon black but not in clear polymer. Aliphatic thiols, disulfides, and their polymeric derivatives and related selenium compounds exhibit similar activity.