纳米氢氧化铝/磷酸酯阻燃环氧树脂体系的研究

Study on curing reaction of flame-retardant epoxy resins system with nano aluminium hydroxide/phosphate

为确定环境友好型覆铜板阻燃体系,利用差热分析对纳米氢氧化铝/磷酸酯阻燃环氧树脂体系进行了研究。通过对体系固化反应动力学的分析,首先求得固化工艺温度,为确定合理固化工艺提供依据;然后利用Kissinger方法和Crane理论求出了体系的两个固化反应动力学参数,结果表明:其表观活化能ΔE为58.35kJ/mol,反应级数n为0.88。同时,还用热重分析法对环氧树脂体系的热稳定和阻燃性能进行了研究,初步评价纳米氢氧化铝/磷酸酯具有良好的协同阻燃效果。

Curing reaction of flame-retardant epoxy resins system of nano-aluminium hydroxide/ phosphate was analyzed by DTA. First temperature of curing technics was calculated through studying on kinetics of the reaction, then using Kissinger and Crane theory, we get results that apparent activation is 58.35kJ/mol and reaction order is 0.88. Simultaneously, flame-retardancy and heat endurance were estimated primarily by thermogravimetry.