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Effects of γ-irradiation on the morphology and slow crack growth in high-density polyethylene

✍ Scribed by Xici Lu; Norman Brown

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
449 KB
Volume
36
Category
Article
ISSN
0887-6266

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✦ Synopsis

The effects of g-irradiation were measured in a HDPE and in the resin after it was recrystallized. The fracture mode of the initial material transformed from crazing to complete brittle failure at a critical dose. The failure mode of the recrystallized material transformed from crazing to shear deformation, which produced an extremely long failure time, and finally, at a higher dose, its fracture became brittle. The relationship between morphology and slow crack growth is presented where crosslinking was the major factor.

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