Premium
The effect of processing variables on the environmental stress crack resistance of blow‐molded polyethylene bottles
Author(s) -
Strebel J. J.,
Benson M.
Publication year - 1996
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.10520
Subject(s) - materials science , mold , composite material , blow molding , molding (decorative) , high density polyethylene , polyethylene , impact resistance , environmental stress cracking , drop (telecommunication) , drop test , structural engineering , mechanical engineering , engineering , alloy , stress corrosion cracking
The effects of blow‐molding process variables on the environmental stress crack resistance (ESCR) of high‐density polyethylene (HDPE) bottles were studied. Experimental design was employed to test the effect of die temperature, mold temperature, molding time, and drop time. Bottles blown at each condition were tested using the internal pressure ESCR test. Through the use of regression analysis, the effect of each variable was quantified. Increasing die temperature, mold temperature, or molding time decreased ESCR. However, increasing drop time increased ESCR.