Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation
Апстракт
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 terms of a formerly established two-process model. In that model, one process is related to the crystal and the other to the amorphous fraction of a polyethylene sample. The modified viscoelastic properties of HDPE, due to effects of orientation and irradiation, are reflected in changes in viscosity coefficients and elasticity moduli of these two fractions. This made possible better comprehension of the nature of changes in the relaxation behavior of HDPE induced by irradiation and orientation.
Кључне речи:
stress relaxation / crystal fraction / amorphous fraction / polyethyleneИзвор:
Polymer Journal, 1999, 31, 12, 1194-1199
DOI: 10.1295/polymj.31.1194
ISSN: 0032-3896
WoS: 000084840200002
Scopus: 2-s2.0-0033343928
Колекције
Институција/група
VinčaTY - JOUR AU - Đoković, Vladimir AU - Kostoski, Dušan AU - Dramićanin, Miroslav AU - Suljovrujić, Edin H. PY - 1999 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2314 AB - 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 terms of a formerly established two-process model. In that model, one process is related to the crystal and the other to the amorphous fraction of a polyethylene sample. The modified viscoelastic properties of HDPE, due to effects of orientation and irradiation, are reflected in changes in viscosity coefficients and elasticity moduli of these two fractions. This made possible better comprehension of the nature of changes in the relaxation behavior of HDPE induced by irradiation and orientation. T2 - Polymer Journal T1 - Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation VL - 31 IS - 12 SP - 1194 EP - 1199 DO - 10.1295/polymj.31.1194 ER -
@article{ author = "Đoković, Vladimir and Kostoski, Dušan and Dramićanin, Miroslav and Suljovrujić, Edin H.", year = "1999", abstract = "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 terms of a formerly established two-process model. In that model, one process is related to the crystal and the other to the amorphous fraction of a polyethylene sample. The modified viscoelastic properties of HDPE, due to effects of orientation and irradiation, are reflected in changes in viscosity coefficients and elasticity moduli of these two fractions. This made possible better comprehension of the nature of changes in the relaxation behavior of HDPE induced by irradiation and orientation.", journal = "Polymer Journal", title = "Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation", volume = "31", number = "12", pages = "1194-1199", doi = "10.1295/polymj.31.1194" }
Đoković, V., Kostoski, D., Dramićanin, M.,& Suljovrujić, E. H.. (1999). Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation. in Polymer Journal, 31(12), 1194-1199. https://doi.org/10.1295/polymj.31.1194
Đoković V, Kostoski D, Dramićanin M, Suljovrujić EH. Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation. in Polymer Journal. 1999;31(12):1194-1199. doi:10.1295/polymj.31.1194 .
Đoković, Vladimir, Kostoski, Dušan, Dramićanin, Miroslav, Suljovrujić, Edin H., "Stress relaxation in high density polyethylene. Effects of orientation and gamma radiation" in Polymer Journal, 31, no. 12 (1999):1194-1199, https://doi.org/10.1295/polymj.31.1194 . .