| PP/ZnAl-LDH纳米阻燃材料的燃烧特性 |
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| 引用本文： | 彭敏,杨玲,史聪灵.PP/ZnAl-LDH纳米阻燃材料的燃烧特性[J].塑料,2019(2):14-16,21. |
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| 作者姓名： | 彭敏 杨玲 史聪灵 |
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| 作者单位： | 首都经济贸易大学安全与环境工程学院;中国安全生产科学研究院地铁火灾与客流疏运安全北京市重点实验室 |
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| 基金项目： | 国家自然科学基金(51622403);北京市科技专项(Z171100001117145);十三五国家重点研发计划(2016YFC0802500);中国安全生产科学研究院“万人计划”入选人才特殊支持经费项目(WRJH201801);中国安全生产科学研究院基本科研业务费专项(2018JBKY02);首都经济贸易大学研究生科技创新项目 |
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| 摘 要： | 以自制的锌铝型纳米层状双氢氧化物(ZnAl-LDH)(n(Zn^2+):n(Al^3+)=3:1)与聚丙烯(PP)熔融共混制备了PP/ZnAl-LDH纳米阻燃材料,利用锥形量热仪及场发射扫描电镜,表征并分析了PP/ZnAl-LDH纳米阻燃材料的燃烧特性.结果表明,与纯样PP相比,PP/ZnAl-LDH纳米复合材料的热释放速率(HRR)和CO释放率均大幅降低,不同比例PP/ZnAl-LDH的纳米复合材料燃烧完成后,得到不同比率的残渣.研究结果表明:ZnAl-LDH的加入降低了材料的热危害和毒气危害,并通过对材料的催化成炭作用发挥了较好的阻燃作用,降低了材料的火灾危险性.且当ZnAl-LDH的添加用量为2.1%-3.5%时,PP/ZnAl-LDH纳米复合材料达到了最佳的阻燃效果。
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| 关 键 词： | PP ZnAl-LDH 阻燃 锥形量热 扫描电镜 |
Combustion Characteristics of PP/ZnAl-LDH Nano-Flame Retardant Materials |
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| PENG Min,YANG Ling,SHI Congling.Combustion Characteristics of PP/ZnAl-LDH Nano-Flame Retardant Materials[J].Plastics,2019(2):14-16,21. |
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| Authors: | PENG Min YANG Ling SHI Congling |
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| Affiliation: | (College of Safety & Environmental Engineering,Capital University of Economics & Business, Beijing 100070,China;Beijing Key Laboratory of Metro Fire and Passenger Transportation Safety,China Academy of Safety Science and Technology, Beijing 100012,China) |
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| Abstract: | PP/ZnAl-LDH nano-flame retardants were prepared by melt blending of self-made zinc-aluminium nano-layered double hydroxides (ZnAl-LDH )( n( Zn^2+):n( Al^3+)= 3. 1 ) and polypropylene (PP). The combustion characteristics of PP/ZnAl-LDH Nano-flame retardant materials were characterized and analyzed by cone calorimeter and field emission scanning electron microscopy. The results showed that the heat release rate ( HRR ) and CO release rate of PP/ZnAl-LDH nanocomposite were significantly lower than those of pure PP. After combustion, nanocomposite with different proportions of PP/ZnAl-LDH had different ratios of residual. The results showed that the addition of ZnAl-LDH reduced the thermal hazards and toxic gas hazards of the materials and played a good flame retardant effect by char forming, and the fire hazard of the materials was reduced. The best flame retardant effect could be achieved, when the amount of ZnAl-LDH added was 2.1%-3.5%. |
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| Keywords: | PP ZnAl-LDH flame retardant Cone SEM |
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