Effect of irradiation on the changes in structural parameters of oriented polyethylene under the action of tensile stresses

Autor:	N.F. Bakeyev, Yu.A. Zubov, A.A. Turetskii, Sergey N. Chvalun, V.S. Tikhomirov
Rok vydání:	1991
Předmět:	Diffraction Materials science General Engineering Polyethylene Amorphous solid chemistry.chemical_compound chemistry Polymer chemistry Ultimate tensile strength High doses sense organs Irradiation Composite material Elastic modulus
Zdroj:	Polymer Science U.S.S.R.. 33:2210-2216
ISSN:	0032-3950
DOI:	10.1016/0032-3950(91)90067-z
Popis:	The changes in the structural parameters of highly oriented polyethylene irradiated with different doses of γ-radiation, under the action of tensile stresses and at given strains are studied by X-ray diffraction at large and small angles. After irradiation with comparatively high doses there is a change in the character of the relation between the parameters a and c and the applied stress and an increase in the apparent elasticity modulus of the lattice. Cross-linking of the macromolecules in the amorphous and crystalline phases leads to a more uniform distribution of the mechanical stresses in the sample, which is manifested in particular in a smaller compliance of the amorphous regions on strain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::663b4e1ec13c1e497db5f11b0e3da8c7 https://doi.org/10.1016/0032-3950(91)90067-z Zobrazit plný text záznamu