摘要
采用“一锅法”,以磷酸和哌嗪为原料制备了膨胀型阻燃剂焦磷酸哌嗪,利用傅里叶变换红外光谱对产物进行了表征。将自制的焦磷酸哌嗪与市场上的优质竞品进行了性能比较,结果表明其热稳定性、元素含量和白度均能达到优质品标准。将自制的焦磷酸哌嗪添加到硅橡胶中,硅橡胶的极限氧指数从22.8%增加到27.2%,阻燃等级达到V-0级,拉伸强度增大1倍。本方法可以实现焦磷酸哌嗪的绿色制备。
The expansive flame retardant pipe-razine pyrophosphate was synthesized via"one pot method"using phosphoric acid and piperazine as raw materials.Fourier transform infrared spectroscopy was employed to characterize the resulting product.The properties of self-made piperazine pyrophosphate was compared with high-quality competitor in the market.The results revealed that self-made piperazine pyrophosphate met superior standards in terms of thermal stability,element content,and whiteness.When added into silicone rubber,self-made piperazine pyrophosphate improved significantly its limiting oxygen index from 22.8%to 27.2%,achieving a V-0 flame retardant grade while doubling its tensile strength.This method could achieve green preparation of piperazine pyrophosphate.
作者
黄伦
叶丹阳
焦伟先
孟喜
李雯娟
HUANG Lun;YE Dan-yang;JIAO Wei-xian;MENG Xi;LI Wen-juan(Hubei Longzhong Laboratory,Xiangyang 441000,China;Hubei Institute of Aerospace Chemical Technology,Xiangyang 441003,China;Hubei Aerospace Chemical New Materials Co Ltd,Xiangyang 441000,China)
出处
《合成橡胶工业》
CAS
2024年第1期68-71,共4页
China Synthetic Rubber Industry
关键词
焦磷酸哌嗪
阻燃剂
硅橡胶
一锅法
阻燃性能
力学性能
piperazine pyrophosphate
flame-retardant
silicone rubber
one pot method
flame retardancy
mechanical property