| PBT/TPU/DOPO-MA阻燃复合材料的制备及性能 |
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| 引用本文： | 罗继永,张道海,周密,田琴,秦舒浩. PBT/TPU/DOPO-MA阻燃复合材料的制备及性能[J]. 化工进展, 2020, 39(8): 3221-3229. DOI: 10.16085/j.issn.1000-6613.2019-1791 |
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| 作者姓名： | 罗继永 张道海 周密 田琴 秦舒浩 |
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| 作者单位： | 1.贵州大学材料与冶金学院，贵州 贵阳 550025;2.国家复合改性聚合物材料工程技术中心，贵州 贵阳 550014 |
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| 摘 要： | 通过使用9,10-二氢-9-氧杂-10-磷朵菲-10-氧化物（DOPO）和马来酸酐反应合成制备DOPO衍生物阻燃剂DOPO-MA，并且其结构使用傅里叶红外光谱分析（FTIR）和核磁共振氢谱分析（1H NMR）技术进行表征。将阻燃剂与聚对苯二甲酸丁二醇酯（PBT）和热塑性聚氨酯（TPU）熔融共混以制备PBT/TPU/DOPO-MA阻燃复合材料。通过运用锥形量热、UL-94、极限氧指数（LOI）、热重分析（TGA）、差热分析（DSC）和力学测试，研究了阻燃剂对复合材料的性能影响。测试结果表明，PBT/TPU/DOPO-MA复合材料具有良好的阻燃性能，加入10％DOPO-MA后，LOI从23.2增加到31.6，可达到UL-94 V-1等级，热释放率峰值（PHRR）和最大成热辐射速率（MAHRE）值降低；热重分析测试结果表明，添加DOPO-MA可以使得阻燃复合材料的热稳定性有显著的提高，当加入10％DOPO-MA后，残炭量可从6.87增加到14.36。此外，随着DOPO-MA含量的增加，阻燃复合材料的结晶度可得到一定的提高。
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| 关 键 词： | DOPO衍生物 聚对苯二甲酸丁二醇酯 热塑性聚氨酯 复合材料 热稳定性 |
Preparation and properties of PBT/TPU/DOPO-MA flame retardant composites |
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| LUO Jiyong,ZHANG Daohai,ZHOU Mi,TIAN Qin,QIN Shuhao. Preparation and properties of PBT/TPU/DOPO-MA flame retardant composites[J]. Chemical Industry and Engineering Progress, 2020, 39(8): 3221-3229. DOI: 10.16085/j.issn.1000-6613.2019-1791 |
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| Authors: | LUO Jiyong ZHANG Daohai ZHOU Mi TIAN Qin QIN Shuhao |
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| Affiliation: | 1.College of Material and Metallurgy, Guizhou University, Guiyang 550025, Guizhou, China
2.National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550014, Guizhou, China |
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| Abstract: | The DOPO derivative flame retardant (DOPO-MA) was synthesized via the synthetic reaction of DOPO and maleic anhydride. Its structure was characterized through Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance proton spectroscopy (1H NMR) techniques. The flame retardant was melt-blended with polybutylene terephthalate (PBT) and thermoplastic polyurethane (TPU) for the synthesis of PBT/TPU/DOPO-MA flame retardant composite. The performance of flame retardants on composites was investigated based on cone calorimeter, UL-94, limiting oxygen index (LOI), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and mechanical tests. The results showed that the PBT/TPU/DOPO-MA composite materials had good flame-retardancy performance. The LOI increased from 23.2 to 31.6 with additional 10% DOPO-MA, which could reach the UL-94 V-1 level. In addition, the decrease in peak heat release rate (PHRR) and the maximum heat radiation rate (MAHRE) was observed. The results based on thermogravimetric analysis revealed that the DOPO-MA introduced could improve the thermal stability of flame-retardant composites significantly. The amount of residual carbon increased from 6.87 to 14.36 with the addition of 10% DOPO-MA. Furthermore, the crystallinity of flame-retardant composites could be improved with the increase of DOPO-MA content. |
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| Keywords: | DOPO derivative polybutylene terephthalate thermoplastic polyurethane composites thermal stability |
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