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首页> 外文期刊>RSC Advances >Curing kinetics of phenolphthalein based polyphosphazene towards thermal stability and flame retardancy of polybenzoxazine
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Curing kinetics of phenolphthalein based polyphosphazene towards thermal stability and flame retardancy of polybenzoxazine

机译：基于酚酞的多磷腈的染色动力学朝向聚苯细胞的热稳定性和阻燃性

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Phenolphthalein type polyphosphazene (PZPT) microspheres were synthesized by an ultrasound assisted precipitation polymerization method, and their structures were confirmed by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Benzoxazine/PZPT (Ba/PZPT) hybrid materials were fabricated and cured to prepare polybenzoxazine/PZPT (PBa/PZPT) composites. The effects of PZPT microspheres on the curing kinetics and behaviors of Ba were systematically analyzed and supported by differential scanning calorimetry (DSC) and in situ FTIR. The thermogravimetric (TGA) results demonstrated good thermal stability of the PBa composites incorporating PZPT. The peak of heat release rate and total heat release values of PBa/PZPT-5% composites obviously deceased by 57.8% and 17.3% compared to those of the pristine PBa. Moreover, the smoke released from the PZPT/PBa system significantly reduced with the loading of microspheres. Finally, the dynamical mechanical analysis results demonstrated that the T-g of PBa flame retardant composites was approximately 210 degrees C, not affecting further applications of PBa composites.
机译：通过超声辅助沉淀聚合方法合成酚酞型聚磷腈（PZPT）微球，通过扫描电子显微镜（SEM）和傅里叶变换红外（FTIR）光谱来确认它们的结构。制造苯并恶嗪/斑点（Ba / PZPT）杂化材料并固化以制备聚苯细胞嗪/斑点（PBA / PZPT）复合材料。通过差示扫描量热法（DSC）和原位FTIR系统地分析和支持PZPT微球对植入动力学和BA行为的影响。热重量（TGA）结果表明了包含PBA的PBA复合材料的良好热稳定性。与原始PBA相比，PBA / PZPT-5％复合材料的热释放速率和PBA / PZPT-5％复合材料的总热释放值明显死亡57.8％和17.3％。此外，随着微球的负载，从PZPT / PBA系统中释放的烟雾显着降低。最后，动态机械分析结果表明，PBA阻燃复合材料的T-G约为210℃，不影响PBA复合材料的进一步应用。

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    《RSC Advances》 |2019年第54期|共11页
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  • 正文语种 eng
  • 中图分类 化学;
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