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Environmental stress cracking of polyethylene: Temperature effect
Author(s) -
Soni P. L.,
Geil P. H.
Publication year - 1979
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.1979.070230420
Subject(s) - polyethylene , amorphous solid , sorption , materials science , environmental stress cracking , composite material , cracking , strain (injury) , stress (linguistics) , crystal (programming language) , deformation (meteorology) , chemistry , adsorption , crystallography , organic chemistry , stress corrosion cracking , medicine , linguistics , philosophy , alloy , computer science , programming language
Polyethylene was drawn at temperatures ranging from 30° to 60°C in aggressive and nonaggressive environments. Fibrillation was found to occur in the aggressive environment, and this effect increased with temperature. The temperature effect was more prominent at lower strain rates. Thin films drawn in aggressive environments deformed inhomogeneously. Again, this effect was found to increase with increasing temperatures. Single crystal deformation was also found to be inhomogeneous, and “solvation” of the amorphous surface layer occurred in the presence of the aggressive environment. Infrared measurements of sorption under different loads indicated that there is an increase in the amount of sorbed materials with increasing load. Dynamic mechanical studies revealed the intracrystalline regions to be affected preferentially.