Platinum loaded cyclomatrix polyphosphazene submicrospheres improve fire retardancy of epoxy with very low addition
Platinum loaded cyclomatrix polyphosphazene submicrospheres improve fire retardancy of epoxy with very low addition
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DOI：
10.1016/j.coco.2018.10.004
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发表时间：
2019-02-01
影响因子：
8
通讯作者：
Ma, Haiyun
中科院分区：
文献类型：
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作者：
Guo, Xiaodong;Geng, Xiaowei;Ma, Haiyun
通过氯铂酸在聚磷腈亚微球表面的还原反应，制备了载铂纳米粒子的聚磷腈亚微球（Pt-PPS）。通过SEM和TEM观察，Pt纳米粒子分散均匀，平均粒径为2 nm。锥形量热仪测试表明，很低的Pt掺入量（0.15%）可以显着提高环氧树脂（EP）的阻燃性。热释放速率（HRR）和总热释放（THR）分别降低了40.2%和23.2%。阻燃性能的提高是由于Pt与PPS亚微球协同催化碳化作用的结果。
Platinum nanoparticle loaded polyphosphaziene submicrosphere (Pt-PPS) was synthesized via the reduction of chloroplatinic acid on the surface of PPS microspheres. Pt nanoparticles were dispersed uniformly with an average particle size of 2 nm from the SEM and TEM investigation. The cone calorimeter tests showed that a very low Pt incorporation (0.15%) can significantly improve the flame retardancy of epoxy resin (EP). The heat release rate (HRR) and total heat release (THR) were reduced by 40.2% and 23.2%, respectively. The improvement in flame retardancy is contributed by the catalytic carbonization effect of Pt synergizing with PPS submicrospheres.