摘要
Abstract
This study investigated the effects of partially replacing magnesium hydroxide with melamine cyanurate(MCA)in flame-retardant polyethylene cable materials.The replacement ratio was varied while maintaining the total flame retardant content.The modified materials were evaluated for mechanical properties,melt flow rate,volume resis-tivity,limiting oxygen index(LOI),and UL94 vertical burning performance.Results indicated that as MCA substitu-tion increased:(1)mechanical properties gradually declined;(2)MFR and volume resistivity remained relatively sta-ble;(3)LOI improved before reaching a plateau;and(4)flame retardancy significantly enhanced,achieving V-2,V-1,and V-0 ratings at 4%,6%,and 9%MCA replacement levels(by total mass),respectively.The findings demonstrat-ed that optimal MCA incorporation could improve flame retardancy while maintaining acceptable material properties for cable applications.关键词
三聚氰胺氰尿酸盐/阻燃/聚乙烯/电缆料/垂直燃烧Key words
melamine cyanuratet/flame retardant/polyethylene/cable material/vertical combustion分类
化学化工
