Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Modification of Polypropylene/Glass Fiber Composite by Electron Beam Irradiation
Submission Author:
Misleine Aparecida de Castro , SC
Co-Authors:
Rodrigo Michalak, Diogo Coletto Pfeifer, Derce de Oliveira Souza Recouvreux, Misleine Aparecida de Castro
Presenter: Derce de Oliveira Souza Recouvreux
doi://10.26678/ABCM.COBEM2017.COB17-2145
Abstract
The properties, such as high chemical and corrosive resistance, ease moldability and the possibility to design complex parts, allowing the polymers to be extensively applied in many products. However, in specific applications, some properties of the polymers need to be modified to suit the material for the mandatory requirements. The ionizing radiation process, which uses electron beam equipment, represents a valuable alternative to conventional chemical methods, with the purpose to improve the characteristics and properties of the polymers. Electron beam (E-beam) irradiation can modify the molecular structure of the polymers, resulting mainly in current branching and crosslinking. These phenomena cause changes in the physical, chemical, mechanical and thermal properties of the polymers. This research aimed to analyze the influence of E-beam ionizing radiation on mechanical and thermal properties of samples of polypropylene/glass fiber composite dogbone tensile bars samples. The samples have been subjected to different doses of E-beam radiation and were evaluated for mechanical properties (tensile strength) and thermal (resistance to an incandescent wire) properties. The results were compared to non-irradiated samples. The tensile strength was not modified by the different doses of ionizing radiation applied to the samples. The resistance to the glow wire had a good performance in irradiated samples.
Keywords
Polypropylene, Electron Beam, Ionizing Radiation, Mechanical and Thermal Properties
