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Retention of thermal antioxidants in polyethylene by silane coupling agents. II. Concentration and induction time studies
Author(s) -
Albarino R. V.,
Schonhorn H.
Publication year - 1974
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.1974.070180301
Subject(s) - polyethylene , silane , materials science , stabilizer (aeronautics) , induction period , amine gas treating , polymer chemistry , thermal oxidation , accelerated aging , thermal , chemical engineering , chemistry , composite material , organic chemistry , layer (electronics) , mechanical engineering , engineering , catalysis , physics , meteorology
Thermal antioxidants were incorporated into polyethylene as solutions in the silane coupling agent N‐β‐(aminoethyl)‐γ‐aminopropyltrimethoxysilane. Substantial improvements in retained concentration and induction time were observed for commercial phenolic and amine‐type antioxidants on prolonged oven aging in thin polyethylene films. As an alternative to solution formation, a stabilizer was bonded directly to silicon as the organic functional group in a silane coupling agent, resulting in improved dispersion and induction time. Improvements in antioxidant retention and induction time appear to correlate with compatibility of the silane–polyethylene system.