摘要
使用三聚氰胺氰尿酸盐(MCA)等量代替阻燃聚乙烯(PE)电缆料中的氢氧化镁(MH)。通过相关设备对阻燃PE电缆料的力学性能、熔体流动速率(MFR)、体积电阻率、极限氧指数(LOI)和V级垂直燃烧性能进行分析。结果表明,在以MH作为阻燃剂,红磷母粒作为协效阻燃剂的阻燃PE电缆料中,随着MCA替换MH的比例增多,材料的力学性能呈现下降的趋势;MFR性能和体积电阻率受影响较小,保持相对稳定;MCA替换MH的比例增加,阻燃PE电缆料LOI性能有提升并逐渐趋于稳定;MCA替换MH的量分别为总质量的4%、6%和9%时,对应的阻燃PE电缆料可通过UL 94标准中规定的V-2、V-1和V-0垂直燃烧测试。
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 resistivity,limiting oxygen index(LOI),and UL94 vertical burning performance.Results indicated that as MCA substitution increased:(1)mechanical properties gradually declined;(2)MFR and volume resistivity remained relatively stable;(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 demonstrated that optimal MCA incorporation could improve flame retardancy while maintaining acceptable material properties for cable applications.
作者
叶翔宇
YE Xiangyu(Hangzhou Rongrong Cable Material Co,Ltd,Hangzhou 310000,China)
出处
《中国塑料》
北大核心
2025年第7期28-31,共4页
China Plastics
关键词
三聚氰胺氰尿酸盐
阻燃
聚乙烯
电缆料
垂直燃烧
melamine cyanuratet
flame retardant
polyethylene
cable material
vertical combustion
作者简介
叶翔宇(1993-),工程师,主要从事无卤低烟阻燃聚烯烃电缆料新产品研发,yeahxiangyu@163.com。
