Impact research of electron beam processing on the structure and properties of PA 6 polyamide

Abstract

In this work we studied the impact of electron irradiation with energy of 1.3 MeV on the structure and properties of PA6 polyamide. Irradiation doses ranged from 50 to 500 kGy. The results of research presented that irradiation with small doses of PA6 polymer is able to increase the mechanical characteristics, while irradiation with large doses significantly reduces them. Wear resistance decreases under irradiation conditions from 350 kGy, and the hardness of the samples varies slightly. The polymer structure was studied by X-ray diffractometry and IR spectroscopy. Electron irradiation at an energy of 1.3 MeV did not lead to a change in the crystalline form of the PA6 polymer, but caused partial crystalline damage. The peak intensity of the α-phase after electron irradiation increases compared with the unirradiated sample. It may be due to an increase in the crystallinity of the polymer.