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Loss of 2‐tertiary‐butyl‐4‐methoxy phenol (BHA) from high‐density polyethylene film
Author(s) -
Han J. K.,
Miltz J.,
Harte B. R.,
Giacin J. R.,
Gray J. I.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760271303
Subject(s) - high density polyethylene , phenol , antioxidant , polyethylene , volatilisation , materials science , high performance liquid chromatography , diffusion , organic chemistry , low density polyethylene , nuclear chemistry , chromatography , chemistry , composite material , physics , thermodynamics
The rate of loss of the antioxidant 2‐tertiary‐butyl‐4‐methoxy phenol (BHA) from high‐density polyethylene (HDPE) was determined using high pressure liquid chromatography (HPLC). The rate of loss was found to follow a first‐order expression. Almost all of the antioxidant was lost (>95 percent) within 1 day at 50°C, within 3 days at 40°C, and within 7 days at 30°C. The controlling parameter for mass transfer of the antioxidant was found to be volatilization rather than diffusion.