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Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation
(Polymer Journal, 1999)
The stress relaxation of unoriented (lambda = 1) and oriented (lambda = 9) high density polyethylene (HDPE) was studied for different levels of radiation (0, 100, 300, and 500 kGy). The relaxation behavior is analyzed in ...
Influence of orientation and irradiation on stress relaxation of linear low-density polyethylene (LLDPE): a two-process model
(Polymer, 1999)
Change in the stress relaxation behavior of linear low-density polyethylene (LLDPE) with drawing and irradiation has been investigated. Samples of isotropic LLDPE were oriented to draw ratios lambda = 6,9,11 and irradiated ...