B. B. Wang, N. N. Hong, Y. Q. Shi, B. Wang, H. B. Sheng, L. Song, Q. B. Tang and Y. Hu (2014) Comparative study on the effect of electron beam irradiation on the physical properties of ethylene-vinyl acetate copolymer composites. Journal/Radiation Physics And Chemistry 97 284-291. [In English]
Web link: http://dx.doi.org/10.1016/j.radphyschem.2013.12.026
Keywords: Ethylene-vinyl acetate copolymer; Electron beam irradiation; Physical; properties; Mechanical properties; Thermal properties.; INTUMESCENT FLAME-RETARDANT; AMMONIUM POLYPHOSPHATE; THERMAL-DEGRADATION; CROSS-LINKING; MICROENCAPSULATION

Abstract: Ethylene-vinyl acetate copolymer (EVA) flame retarded by a combination of cellulose acetate butyrate (CAB) microencapsulated ammonium polyphosphate (MCAPP) and polyamide-6 (PA-6) have been crosslinked by high energy electron beam irradiation. The effect of high energy electron beam irradiation on the crosslinking degree, mechanical, electrical and thermal properties of EVA/MCAPP/PA-6 cable material was studied by gel content, heat extention test, mechanical test, dynamic mechanical analysis, high-insulation resistance meter and thermogravimetric analysis. The gel content and heat extention test results showed that the EVA/MCAPP/PA-6 composites can be easily crosslinked by electron beam irradiation. The tensile strength of EVA composites was drastically increased from 16.2 to maximum 26.2 MPa as the electron beam irradiation dose increases from 0 to 160 kGy. The volatilized products of EVA/MCAPP/PA-6 composites were analyzed and compared by thermogravimetric analysis/infrared spectrometry (TG-FTIR). (C0 2014 Elsevier Ltd. All rights reserved.