X-ray investigations of proton irradiation induced structure development in polyester fibers

18th International School on Condensed Matter Physics: "Challenges of Nanoscale Science: Theory, Materials, Applications"

Velev, V.^1 ; Popov, A.^2 ; Arhangelova, N.^1 ; Kyurkchiev, P.^1 ; Stefanova, S.^1 ; Sartori, P.^3 ; Uzunov, N.^1,3

Konstantin Preslavsky University, 115 Universitetska Street, Shumen

9700, Bulgaria^1

University Prof. Dr. Assen Zlatarov, 1 Prof. Jakimov Street, Burgas

8000, Bulgaria^2

National Laboratories of Legnaro, INFN, Viale dell'Universita 2, Legnaro (PD)

35020, Italy^3

关键词: Induced structures;    Intensity distribution;    Irradiation conditions;    Macromolecular chain;    Partially crystalline;    Poly(ethylene terephthalate) (PET);    Structural reorganization;    X-ray investigations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/558/1/012050/pdf
DOI  :  10.1088/1742-6596/558/1/012050

来源: IOP

【 摘 要 】

The role of proton irradiation on the structural changes in partially crystalline poly (ethylene terephthalate) (PET) fibres has been investigated using a wide-angle X-ray scattering (WAXS). Experimental data about the influence of the exposure dose and the irradiation conditions in the processes of destruction and crosslinking in the irradiated objects have been obtained. The structural changes and the packing density of the macromolecular chain segments of the poly (ethylene terephthalate) filaments irradiated with different doses have been analyzed. A mechanism of the structural reorganization initiated by the irradiation has been supposed on the basis of the changes in the geometry of the intensity distribution of the X-ray diffraction patterns of the studied objects.