焦磷酸哌嗪的绿色制备及在阻燃硅橡胶中的应用

Green preparation of piperazine pyrophosphate and its application in flame-retardant silicone rubber

黄伦 ¹叶丹阳 ¹焦伟先 ¹孟喜 ¹李雯娟²

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作者信息

1. 湖北隆中实验室,湖北襄阳 441000;湖北航天化学技术研究所,湖北襄阳 441003
2. 湖北航天化学新材料科技有限公司,湖北襄阳 441000
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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.

Abstract

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 pyrophos-phate 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 signifi-cantly 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 pyrophos-phate.

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

Key words

piperazine pyrophosphate/flame-re-tardant/silicone rubber/one pot method/flame retar-dancy/mechanical property

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出版年

2024

合成橡胶工业

中国石油天然气股份有限公司兰州石化分公司

合成橡胶工业

CSTPCD

影响因子：0.401

ISSN：1000-1255

参考文献量18

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