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Retention of thermal antioxidants in polyethylene by silane coupling agents. III. Copper deactivators
Author(s) -
Albarino R. V.,
Schonhorn H.
Publication year - 1975
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.1975.070191003
Subject(s) - stabilizer (aeronautics) , polyethylene , silane , dispersion (optics) , copper , materials science , polymer chemistry , low density polyethylene , chemistry , chemical engineering , composite material , organic chemistry , mechanical engineering , physics , optics , engineering
Stabilizer activity has been correlated with physical retention and state of dispersion in aged polyethylene films. Incompatibility and poor state of dispersion were found to limit long‐term performance of otherwise chemically efficient stabilizers. A practical method to improve compatibility and state of dispersion of stabilizers involves complexation of nonfunctional stabilizer phenolic groups with N‐β‐(aminoethyl)‐γ‐aminopropyltrimethoxysilane. Substantial improvement in retention and state of dispersion may be realized with antioxidant–silane weight ratios of 1:1.