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涂覆阻燃剂对聚氨酯软泡燃烧性能的影响

作者：张宗玉1，杜春雷1，王功振2，曹杨2

关键字：涂覆,阻燃,剂,对,聚氨酯,软泡,燃烧,性能,的,

　
（1.济南市历城区城乡建设综合服务中心，山东 济南  250100；
2.山东建研检测检验科技有限公司，山东 济南  250000）
    摘要：采用聚乙烯亚胺（PEI）和二苯基次膦酰氯（DPPC）合成了具有粘结和阻燃功能的磷酸化聚乙烯亚胺（P-PEI），然后与可膨胀石墨（EG）进行充分混合。将混合物P-PEI/EG均匀涂覆在聚氨酯软泡（FPUF）的表面，然后进行燃烧性能测试。结果表明，在燃烧性能测试过程中，FPUF/P-PEI/EG的燃烧性能明显优于FPUF、FPUF/PEI、FPUF/PEI/EG；FPUF/P-PEI/EG的极限氧指数（LOI）达
30.1%，在开放性燃烧测试和水平燃烧测试中离火后自熄，在锥形量热测试中热释放速率峰值降低了81.4%。
    关键词：磷酸化聚乙烯亚胺；涂覆；燃烧性能；阻燃
    中图分类号：TU55+1.2        文献标识码：A        文章编号：1001-702X（2022）09-0012-05
 
Effect of coating flame retardant on combustion performance of polyurethane soft foam
ZHANG Zongyu1，DU Chunlei1，WANG Gongzhen2，CAO Yang2
（1.Comprehensive Service Center of Urban-Rural Development of Licheng District，Jinan 250100，China；
2.Shandong Jianyan Testing and Inspection Technology Co. Ltd.，Jinan 250000，China）
    Abstract：A phosphorylated polyethyleneimine（P-PEI） with bonding and flame retardancy was synthesized by PEI and DPPC，and then fully mixed with expandable graphite（EG）. The mixture P-PEI/EG was uniformly coated on the surface of polyurethane flexible foam（FPUF） and the combustion performance test was carried out. During the combustion performance test，it is shown that the combustion performance of FPUF/P-PEI/EG was significantly better than that of FPUF，FPUF/PEI and FPUF/PEI/EG. The limiting oxygen index（LOI） of the prepared FPUF/P-PEI/EG sample reached 30.1%，and was not ignited in both open flame test and horizontal combustion test. During the cone calorimetry test，the peak heat release rate of the sample decreased by 81.4% compared with FPUF/PEI/EG，which showed a good flame retardancy. 
    Key words：P-PEI，coating，combustion performance，flame retardant