Electron beam irradiated HDPE/EVA/Mg(OH)2 composites for flame-retardant electric cables

Autor: Nabil A. Noman Alkadasi, Hui Liu, Yan Zhu, Lifang Tong, Zhengping Fang, Yongchang Wang
Rok vydání: 2008
Předmět:
Zdroj: Frontiers of Materials Science in China. 2:426-429
ISSN: 1673-7482
1673-7377
DOI: 10.1007/s11706-008-0064-y
Popis: The mechanical properties and flammability of high-density polyethylene (HDPE)/ethylene vinyl acetate (EVA) mixed with various amounts of magnesium hydroxide (Mg(OH)2) as the filler in composites, irradiated with electron beam at an irradiation dose of 150 kGy, have been studied. It is found that high-energy electron beam irradiation has significant effects on the mechanical properties of the HDPE/EVA/Mg(OH)2 composites. The tensile strength and elastic modulus increased greater than in the unirradiated ones. Meanwhile, with increasing the content of Mg(OH)2 in the composites, the limiting oxygen index (LOI) value increased sharply. The microstructure of the caves of the unirradiated HDPE/EVA/Mg(OH)2 composites show poor interface of composites compared with the irradiated ones, as observed in SEM micrographs.
Databáze: OpenAIRE