井冈山大学学报（自然科学版）2025，Vol.46Issue(6)：17-23,7.DOI:10.3969/j.issn.1674-8085.2025.06.003
磷镁协同阻燃剂改性的聚氨酯泡沫材料性能研究
The properties of polyurethane foam materials modified by phosphorus-magnesium synergistic flame retardants
摘要
Abstract
Polyurethane foam was modified with phosphorus-containing flame retardant(HMPO)and magnesium hydroxide(MH),the corresponding HMPO,MH and HMPO-MH(Phosphorus-magnesium flame retardant)modified polyurethane foams were prepared,respectively,the effects of flame retardants on polyurethane foams and the synergistic effects of flame retardants were investigated.The thermal stability and flame retardancy property of HMPO/PU,MH/PU and HMPO-MH/PU composites were investigated by differential scanning calorimetry(DSC),thermogravimetry,oxygen index meter and vertical combustion meter.The findings indicated a substantial improvement in both thermal stability and flame retardancy of the polyurethane foams upon the incorporation of the flame retardant HMPO-MH.Specifically,the Tg of the modified polyurethane foams exhibited a gradual rise.Additionally,the onset decomposition temperature initially rose and subsequently declined,while the compression strength progressively increased as the amount of HMPO was incremented and the amount of MH was decremented.Among them,when the addition of HMPO-MH is 5 wt％,the performance of HMPO-MH/PU-3 is the best,and the onset decomposition temperature of the flame retardant polyurethane foam is the highest,which is 245℃;the Tg reaches 177.52℃,which is 12％higher than that of the unmodified polyurethane;the compression strength is increased from 1560.91 KPa to 1795.45 KPa,which is 15％higher;the oxygen index is improved from 19.3％to 21.8％,and it reaches vertical combustion UL-94 V-1 rating.关键词
聚氨酯/HMPO/氢氧化镁/阻燃性能/力学性能Key words
polyurethane/HMPO/magnesium hydroxide/flame retardancy/mechanical property分类
化学工程引用本文复制引用
庄东阳,施晓文,周琰,刘诚,王玮..磷镁协同阻燃剂改性的聚氨酯泡沫材料性能研究[J].井冈山大学学报（自然科学版）,2025,46(6):17-23,7.基金项目
国家自然科学基金项目(22262015) （22262015）
江西省自然科学基金项目(20224BAB204008,20212BAB213020) （20224BAB204008,20212BAB213020）
江西省教育厅科技计划项目(GJJ2201648) （GJJ2201648）
