The Effect of α and γ Phase Nano Al_(2)O_(3) on Mechanical Properties of Ethylene-Propylene-Diene Monomer Using in High Voltage Cable Accessories

摘要

Nano Al_(2)O_(3) in α and γ phases was mechanically blended into Ethylene-Propylene-Diene Monomer, respectively. Both kinds of compounds were sulphurised and moulded into samples under the same condition. Distribution of both kinds of Al_(2)O_(3) in EPDM was obtained via Scanning Electron Microscope. It is shown that Al_(2)O_(3) in γ phase is dispersed more uniformly than Al_(2)O_(3) in α phase. Some mechanical properties of both kinds of samples were measure with Dynamic Mechanical Analyzer besides tensile strength. It is shown that mechanical properties of EPDM containing nano Al_(2)O_(3) in γ phase are better than those containing nano Al_(2)O_(3) in α phase.