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Aging modifiers for extruded LDPE foam
Author(s) -
Dieckmann Dale,
Holtz Ben
Publication year - 2000
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.10220
Subject(s) - low density polyethylene , antistatic agent , monoglyceride , materials science , glyceride , composite material , isobutane , tallow , glycerol , chemical engineering , polyethylene , food science , chemistry , organic chemistry , fatty acid , layer (electronics) , engineering , catalysis
Aging modifiers help to regulate the isobutane/air interchange in LDPE foams. In the absence of sufficient modifier, the foam will shrivel and collapse. Several glycerol esters are evaluated at four use‐levels for dimensional stability of the foam, antistatic properties, and additive “rub‐off.” Stearamide is compared at one‐use level. Only the glycerides provided antistatic protection, and a distilled monoglyceride made from fully hydrogenated tallow had the best overall performance.