Loss of 2-tertiary-butyl-4-methoxy phenol (BHA) from high-density polyethylene film

Loss of 2-tertiary-butyl-4-methoxy phenol (BHA) from high-density polyethylene film

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) wi...

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Veröffentlicht in:Polymer engineering and science 1987-07, Vol.27 (13), p.934-938
Hauptverfasser: Han, J. K., Miltz, J., Harte, B. R., Giacin, J. R., Gray, J. I.
Format: Artikel
Sprache:eng
Schlagworte:
Ageing
Applied sciences
Exact sciences and technology
Physical properties
Polymer industry, paints, wood
Properties and testing
Technology of polymers
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Zusammenfassung: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.
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.760271303