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采用热分析仪对四苯基双酚A二磷酸酯(BDP)及复配APP体系阻燃环氧树脂(EP)进行TG分析,研究BDP及其复配体系阻燃EP降解的过程,并在动力学理论模型基础上计算阻燃EP的活化能。结果表明,与未阻燃EP相比,阻燃EP在600℃时残炭率增加,15%BDP阻燃EP的残炭率由未阻燃的20.41%增加到28.06%,15%BDP+9%APP阻燃EP的残炭率增加到34.78%;BDP及其复配体系阻燃EP的活化能显著提高,15%BDP阻燃EP的活化能由未阻燃的80.39 kJ/mol提高到141.06 kJ/mol,15%BDP+9%APP阻燃EP的活化能提高到199.68 kJ/mol。研究表明,阻燃EP体系耐热性能好,阻燃效果明显,且复配体系阻燃效果进一步提高。
TG analysis of tetraphenylphenol bisphenol A diphosphate (BDP) and flame retardant epoxy resin (EP) of the complex APP system was carried out with a thermal analyzer to study the process of flame retardant EP degradation of BDP and its complex system. Based on kinetic theory model, the activation energy of flame retardant EP was calculated. The results showed that compared with non-flame retardant EP, the residual carbon rate of flame-retardant EP increased at 600 ℃, the residual char yield of 15% BDP flame-retardant EP increased from 20.41% to 28.06% and 15% BDP + 9 The percent of carbon residue in flame retardant EP of% APP increased to 34.78%. The activation energy of flame retardant EP in BDP and its complex system was significantly increased. The activation energy of flame retardant EP in 15% BDP increased from 80.39 kJ / mol to 141.06% kJ / mol, the activation energy of 15% BDP + 9% APP flame retardant EP increased to 199.68 kJ / mol. The research shows that the flame retardant EP system has good heat resistance, obvious flame retardant effect, and the flame retardant effect of the compounding system is further improved.