摘要
氢氧化镁、氢氧化铝和微胶囊红磷作为阻燃剂,在固定树脂和阻燃剂配比的基础上,选择单体丙烯酸甲酯(MA)、马来酸酐(MAH)和引发剂过氧化二异丙苯(DCP)3个因子采用正交试验原位反应增容技术制备了无卤阻燃聚乙烯材料,测试了材料的力学性能和阻燃性能,并用红外光谱和扫描电镜分别观察了原位增容反应前后聚合物主链结构以及试样缺口断面的微观结构。结果表明:原位增容反应最佳配方:MA 10 mL、MAH 25 g、DCP 2.0 g,试样氧指数从普通填充时的29.2%增加到31.2%、UL94垂直燃烧从V-1级升到V-0级,拉伸强度和冲击强度有很大提高,无机阻燃剂和树脂的相容性得到大大改善。
The flame retardant systems were composed of magnesium hydroxide,alumina hydroxide and red phosphorous, the proportion of flame retardant and resin was kept the same, and methyl acrylate （ MA）, maleic anhydride （MAH） and dicumyl peroxide （DCP） were selected as 3 factors, non-halogen flame retardant polyethylene were prepared by in-situ compatible reactivity in orthogonal method, the properties of mechanical and flame retardation, the structure of polymer chain and micro-structure of fracture surface were observed by infrared spectrum and SEM respectively. The results showed that the best formula of in-situ compatible reaction was MA 10 mL, MAH 25 g and DCP 2.0 g, when compared with common flame retardant polyethylene,the oxygen index of sample increased from 29.2 % to 31.2 % and the vertical combustion level （UL94） increased from V-1 to V-0, the tensile strength and impact strength were both raised greatly, and compatibility of inorganic flame retardant and resin was improved evidently.
出处
《塑料》
CAS
CSCD
北大核心
2011年第5期41-44,共4页
Plastics
基金
国家自然基金(51073095)
关键词
无卤阻燃
正交分析法
原位增容
聚乙烯
氧指数
non-halogen flame retardant
orthogonal method
in-situ compatible reaction
polyethylene
oxygen index
